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<!-- Created: Fri Dec 08 22:18:10 UTC 2023 --> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_OtherLongTermInvestments" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableNetNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNetNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_AccountsReceivableNetNoncurrent" order="1" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="ocln_CommonSharesPurchaseCost" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_MarketableSecuritiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MarketableSecuritiesNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_MarketableSecuritiesNoncurrent" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherIntangibleAssetsNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIntangibleAssetsNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_OtherIntangibleAssetsNet" order="4" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_OtherAssets" order="5" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherAssetsAbstract" xlink:to="us-gaap_Assets" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrentAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_LiabilitiesCurrentAbstract" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableOtherCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableOtherCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_AccountsPayableOtherCurrent" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccruedLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccruedLiabilitiesCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_AccruedLiabilitiesCurrent" order="1" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_CumulativePreferredStockDividendsPayable" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ContractWithCustomerLiabilityCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerLiabilityCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_ContractWithCustomerLiabilityCurrent" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_TaxesPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TaxesPayableCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_TaxesPayableCurrent" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CustomerDepositCurrent" xlink:href="ocln-20230930.xsd#ocln_CustomerDepositCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_CustomerDepositCurrent" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantReserveCurrent" xlink:href="ocln-20230930.xsd#ocln_WarrantReserveCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_WarrantReserveCurrent" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LinesOfCreditCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LinesOfCreditCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LinesOfCreditCurrent" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherLoansPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLoansPayableCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_OtherLoansPayableCurrent" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_LoansPayableSBA" xlink:href="ocln-20230930.xsd#ocln_LoansPayableSBA"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_LoansPayableSBA" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_DerivativeLiabilities" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_PreferredStockValue" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockValue2" xlink:href="ocln-20230930.xsd#ocln_PreferredStockValue2"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_PreferredStockValue2" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockValue3" xlink:href="ocln-20230930.xsd#ocln_PreferredStockValue3"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_PreferredStockValue3" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockValue4" xlink:href="ocln-20230930.xsd#ocln_PreferredStockValue4"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="ocln_PreferredStockValue4" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleDebtCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleDebtCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_ConvertibleDebtCurrent" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleNotesPayableCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleNotesPayableCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_ConvertibleNotesPayableCurrent" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_LiabilitiesCurrentAbstract" xlink:to="us-gaap_LiabilitiesCurrent" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_LongTermLiabilitiesAbstract" xlink:href="ocln-20230930.xsd#ocln_LongTermLiabilitiesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_LongTermLiabilitiesAbstract" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePromissoryNotesNetOfDiscountNetOfTax" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePromissoryNotesNetOfDiscountNetOfTax"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LongTermLiabilitiesAbstract" xlink:to="ocln_ConvertiblePromissoryNotesNetOfDiscountNetOfTax" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LongTermLiabilitiesAbstract" xlink:to="us-gaap_LiabilitiesOtherThanLongtermDebtNoncurrent" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_Liabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Liabilities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LongTermLiabilitiesAbstract" xlink:to="us-gaap_Liabilities" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingencies" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingencies"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommitmentsAndContingencies" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_UnlabeledAbstract14" xlink:href="ocln-20230930.xsd#ocln_UnlabeledAbstract14"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_UnlabeledAbstract14" order="7" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_UnlabeledAbstract14" xlink:to="ocln_ConvertiblePreferredStock" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ShareholdersDeficitAbstract" xlink:href="ocln-20230930.xsd#ocln_ShareholdersDeficitAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ShareholdersDeficitAbstract" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockValue7" xlink:href="ocln-20230930.xsd#ocln_PreferredStockValue7"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ShareholdersDeficitAbstract" xlink:to="ocln_PreferredStockValue7" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SubscriptionPayableToPurchaseCommonStock" xlink:href="ocln-20230930.xsd#ocln_SubscriptionPayableToPurchaseCommonStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="ocln_SubscriptionPayableToPurchaseCommonStock" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_TreasuryStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_TreasuryStockValue" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_CommonStockValue" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AdditionalPaidInCapitalCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionalPaidInCapitalCommonStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_AdditionalPaidInCapitalCommonStock" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RetainedEarningsAccumulatedDeficit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RetainedEarningsAccumulatedDeficit"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_RetainedEarningsAccumulatedDeficit" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquity"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_StockholdersEquity" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LiabilitiesAndStockholdersEquity" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LiabilitiesAndStockholdersEquity"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_PreferredStockValue7" xlink:to="us-gaap_LiabilitiesAndStockholdersEquity" order="7" xbrldt:closed="true"/> |
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| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ConsolidatedBalanceSheet_Parentheticals"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementLineItems"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StatementTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_StatementTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesF8PreferredStockTwoMember" xlink:href="ocln-20230930.xsd#ocln_SeriesF8PreferredStockTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesF8PreferredStockTwoMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesG8PreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesG8PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesG8PreferredStockMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesI8PreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesI8PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesI8PreferredStockMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesK8PreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesK8PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesK8PreferredStockMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesJConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesJConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesJConvertiblePreferredStockMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesLConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesLConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesLConvertiblePreferredStockMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesMreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesMreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesMreferredStockMember" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesO8ConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesO8ConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesO8ConvertiblePreferredStockMember" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesPConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesPConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesPConvertiblePreferredStockMember" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesQ12ConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesQ12ConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesQ12ConvertiblePreferredStockMember" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesR12ConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesR12ConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesR12ConvertiblePreferredStockMember" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesS12ConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesS12ConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesS12ConvertiblePreferredStockMember" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesUConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesUConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesUConvertiblePreferredStockMember" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesW12ConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesW12ConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesW12ConvertiblePreferredStockMember" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesXConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesXConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesXConvertiblePreferredStockMember" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesYConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesYConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesYConvertiblePreferredStockMember" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesZConvertiblePreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesZConvertiblePreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesZConvertiblePreferredStockMember" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_PreferredStockMember" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesAPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesAPreferredStockMember" order="18" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesBPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesBPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesBPreferredStockMember" order="19" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesCPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesCPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesCPreferredStockMember" order="20" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesD1PreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesD1PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesD1PreferredStockMember" order="21" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivableNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivableNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_AccountsReceivableNet" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockRedeemableValue" xlink:href="ocln-20230930.xsd#ocln_PreferredStockRedeemableValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_PreferredStockRedeemableValue" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PreferredStockSharesIssued" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PreferredStockSharesOutstanding" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_LongTermNetOfDiscountCurrent" xlink:href="ocln-20230930.xsd#ocln_LongTermNetOfDiscountCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_LongTermNetOfDiscountCurrent" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePreferredStockRedeemableIssuerOptionValues" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePreferredStockRedeemableIssuerOptionValues"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ConvertiblePreferredStockRedeemableIssuerOptionValues" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePreferredStockShareOutstanding" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePreferredStockShareOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ConvertiblePreferredStockShareOutstanding" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PreferredStockSharesAuthorized" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_TreasuryStockPreferredShares" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_TreasuryStockPreferredShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_TreasuryStockPreferredShares" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockSharesAuthorized" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockSharesIssued" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_CommonStockSharesOutstanding" order="15" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ConsolidatedIncomeStatement"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_IncomeStatementAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeStatementAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_Revenues" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Revenues"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_Revenues" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CostOfGoodsAndServicesSold" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CostOfGoodsAndServicesSold"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_CostOfGoodsAndServicesSold" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_GrossProfit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GrossProfit"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_GrossProfit" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OperatingExpensesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpensesAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_OperatingExpensesAbstract" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SellingAndMarketingExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SellingAndMarketingExpense"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_SellingAndMarketingExpense" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_GeneralAndAdministrativeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GeneralAndAdministrativeExpense"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_GeneralAndAdministrativeExpense" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DepreciationAndAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepreciationAndAmortization"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_DepreciationAndAmortization" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OperatingExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingExpenses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OperatingExpensesAbstract" xlink:to="us-gaap_OperatingExpenses" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_OperatingIncomeLoss" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NonoperatingIncomeExpenseAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeStatementAbstract" xlink:to="us-gaap_NonoperatingIncomeExpenseAbstract" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherNonoperatingIncomeExpense" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNonoperatingIncomeExpense"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_OtherNonoperatingIncomeExpense" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherAssetImpairmentCharges" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetImpairmentCharges"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="us-gaap_OtherAssetImpairmentCharges" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_GainOnWriteOffOfAccountsPayable" xlink:href="ocln-20230930.xsd#ocln_GainOnWriteOffOfAccountsPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="ocln_GainOnWriteOffOfAccountsPayable" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_UnrealizedGainlossOnInvestmentSecurities" xlink:href="ocln-20230930.xsd#ocln_UnrealizedGainlossOnInvestmentSecurities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NonoperatingIncomeExpenseAbstract" xlink:to="ocln_UnrealizedGainlossOnInvestmentSecurities" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_GainLossOnConversionOfPreferredStock" xlink:href="ocln-20230930.xsd#ocln_GainLossOnConversionOfPreferredStock"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments"/> |
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| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesSPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesSPreferredStock"/> |
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| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesSPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesSPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesSPreferredStockinShares" order="27" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesTPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesTPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesTPreferredStock" order="28" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesTPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesTPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesTPreferredStockinShares" order="29" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesUPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesUPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesUPreferredStock" order="30" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesUPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesUPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesUPreferredStockinShares" order="31" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesWPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesWPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesWPreferredStock" order="32" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesWPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesWPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesWPreferredStockinShares" order="33" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesYPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesYPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesYPreferredStock" order="34" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesYPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesYPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesYPreferredStockinShares" order="35" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesZPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesZPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesZPreferredStock" order="36" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionOfSeriesZPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionOfSeriesZPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionOfSeriesZPreferredStockinShares" order="37" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForDividendsOnSeriesOPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForDividendsOnSeriesOPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForDividendsOnSeriesOPreferredStock" order="38" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForSeriesOPreferredStockDividendsinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForSeriesOPreferredStockDividendsinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForSeriesOPreferredStockDividendsinShares" order="39" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionSettlementAgreements" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionSettlementAgreements"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionSettlementAgreements" order="40" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionSettlementAgreementsinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionSettlementAgreementsinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionSettlementAgreementsinShares" order="41" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueNewIssues"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodValueNewIssues" order="42" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesNewIssues" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesNewIssues"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesNewIssues" order="43" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RedemptionOfCommonStockForNotePurchaseAgreement" xlink:href="ocln-20230930.xsd#ocln_RedemptionOfCommonStockForNotePurchaseAgreement"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_RedemptionOfCommonStockForNotePurchaseAgreement" order="44" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RedemptionOfCommonStockForNotePurchaseAgreementinShares" xlink:href="ocln-20230930.xsd#ocln_RedemptionOfCommonStockForNotePurchaseAgreementinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_RedemptionOfCommonStockForNotePurchaseAgreementinShares" order="45" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfSeriesBPreferredStockGrantedToInvestors" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfSeriesBPreferredStockGrantedToInvestors"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_IssuanceOfSeriesBPreferredStockGrantedToInvestors" order="46" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfSeriesAAndBPreferredStockGrantedToSeriesYInvestorsAtFairValueinShares" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfSeriesAAndBPreferredStockGrantedToSeriesYInvestorsAtFairValueinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_IssuanceOfSeriesAAndBPreferredStockGrantedToSeriesYInvestorsAtFairValueinShares" order="47" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueOther"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodValueOther" order="48" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesIssuedForServices"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesIssuedForServices" order="49" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CancellationOfRegACommonAndSeriesAAndBPreferredShares" xlink:href="ocln-20230930.xsd#ocln_CancellationOfRegACommonAndSeriesAAndBPreferredShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CancellationOfRegACommonAndSeriesAAndBPreferredShares" order="50" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfConvertibleSecurities" order="51" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionSeriesQPreferredStockDividends" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionSeriesQPreferredStockDividends"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionSeriesQPreferredStockDividends" order="52" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForConversionSeriesQPreferredStockDividendsinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForConversionSeriesQPreferredStockDividendsinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForConversionSeriesQPreferredStockDividendsinShares" order="53" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForMakeGoodSharesForSeriesPPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForMakeGoodSharesForSeriesPPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForMakeGoodSharesForSeriesPPreferredStock" order="54" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesOther"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesOther" order="55" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForMakeGoodSharesForSeriesRPreferredStock" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForMakeGoodSharesForSeriesRPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForMakeGoodSharesForSeriesRPreferredStock" order="56" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedForMakeGoodSharesForSeriesRPreferredStockinShares" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedForMakeGoodSharesForSeriesRPreferredStockinShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_CommonStockIssuedForMakeGoodSharesForSeriesRPreferredStockinShares" order="57" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueConversionOfUnits"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodValueConversionOfUnits" order="58" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesConversionOfUnits" order="59" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockAmountIssued1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockAmountIssued1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_ConversionOfStockAmountIssued1" order="60" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockSharesIssued1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesIssued1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_ConversionOfStockSharesIssued1" order="61" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfSeriesYPreferredStockThroughAPrivatePlacement" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfSeriesYPreferredStockThroughAPrivatePlacement"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_IssuanceOfSeriesYPreferredStockThroughAPrivatePlacement" order="62" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfSeriesZPreferredStockThroughAPrivatePlacement" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfSeriesZPreferredStockThroughAPrivatePlacement"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_IssuanceOfSeriesZPreferredStockThroughAPrivatePlacement" order="63" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeOfSeriesFPreferredStockForSeriesQPreferredStock" xlink:href="ocln-20230930.xsd#ocln_ExchangeOfSeriesFPreferredStockForSeriesQPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ExchangeOfSeriesFPreferredStockForSeriesQPreferredStock" order="64" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeOfSeriesIPreferredStockForSeriesWPreferredStock" xlink:href="ocln-20230930.xsd#ocln_ExchangeOfSeriesIPreferredStockForSeriesWPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ExchangeOfSeriesIPreferredStockForSeriesWPreferredStock" order="65" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeOfSeriesKPreferredStockForSeriesWPreferredStocks" xlink:href="ocln-20230930.xsd#ocln_ExchangeOfSeriesKPreferredStockForSeriesWPreferredStocks"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ExchangeOfSeriesKPreferredStockForSeriesWPreferredStocks" order="66" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeOfSeriesRPreferredStockForWODISecuredConvertibleNote" xlink:href="ocln-20230930.xsd#ocln_ExchangeOfSeriesRPreferredStockForWODISecuredConvertibleNote"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ExchangeOfSeriesRPreferredStockForWODISecuredConvertibleNote" order="67" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeOfSeriesXPreferredStockForWODISecuredConvertibleNote" xlink:href="ocln-20230930.xsd#ocln_ExchangeOfSeriesXPreferredStockForWODISecuredConvertibleNote"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="ocln_ExchangeOfSeriesXPreferredStockForWODISecuredConvertibleNote" order="68" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementLineItems" xlink:to="us-gaap_ConvertiblePreferredStockConvertedToOtherSecurities" order="69" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodValueShareBasedCompensationGross"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesAcquisitions" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesAcquisitions"/> |
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| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfCommonStockToInvestorsAfterMerger" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfCommonStockToInvestorsAfterMerger"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NetCashProvidedByUsedInFinancingActivities" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalentsPeriodIncreaseDecreaseExcludingExchangeRateEffect" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_CashCashEquivalentsRestrictedCashAndRestrictedCashEquivalents" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SupplementalCashFlowInformationAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplementalCashFlowInformationAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_SupplementalCashFlowInformationAbstract" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_InterestPaidNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestPaidNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_InterestPaidNet" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxesPaidNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxesPaidNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SupplementalCashFlowInformationAbstract" xlink:to="us-gaap_IncomeTaxesPaidNet" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NoncashInvestingAndFinancingItemsAbstract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StatementOfCashFlowsAbstract" xlink:to="us-gaap_NoncashInvestingAndFinancingItemsAbstract" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockIssuedAtFairValueForConversionOfDebtPlusAccruedInterestAndOtherFees" xlink:href="ocln-20230930.xsd#ocln_CommonStockIssuedAtFairValueForConversionOfDebtPlusAccruedInterestAndOtherFees"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_CommonStockIssuedAtFairValueForConversionOfDebtPlusAccruedInterestAndOtherFees" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfWarrantsDeemedDividends" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfWarrantsDeemedDividends"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_IssuanceOfWarrantsDeemedDividends" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockConvertedToCommonStockEquity" xlink:href="ocln-20230930.xsd#ocln_PreferredStockConvertedToCommonStockEquity"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_PreferredStockConvertedToCommonStockEquity" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfSeriesRPreferredStockForWODISecuredConvertibleNote" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfSeriesRPreferredStockForWODISecuredConvertibleNote"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_IssuanceOfSeriesRPreferredStockForWODISecuredConvertibleNote" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeOfSeriesXPreferredStockForWODISecuredConvertibleNotes" xlink:href="ocln-20230930.xsd#ocln_ExchangeOfSeriesXPreferredStockForWODISecuredConvertibleNotes"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_ExchangeOfSeriesXPreferredStockForWODISecuredConvertibleNotes" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeFromMezzanineToLiability" xlink:href="ocln-20230930.xsd#ocln_ExchangeFromMezzanineToLiability"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_ExchangeFromMezzanineToLiability" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssued1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssued1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="us-gaap_StockIssued1" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ShareIssued" xlink:href="ocln-20230930.xsd#ocln_ShareIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_ShareIssued" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfPWTCommonStockToWODIShareholders" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfPWTCommonStockToWODIShareholders"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_IssuanceOfPWTCommonStockToWODIShareholders" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RedemptionOfSharesForSecuredPromissoryNotes" xlink:href="ocln-20230930.xsd#ocln_RedemptionOfSharesForSecuredPromissoryNotes"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_NoncashInvestingAndFinancingItemsAbstract" xlink:to="ocln_RedemptionOfSharesForSecuredPromissoryNotes" order="9" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/BasisofPresentation"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="us-gaap_BusinessDescriptionAndBasisOfPresentationTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/SummaryofSignificantAccountingPolices"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SignificantAccountingPoliciesTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SignificantAccountingPoliciesTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_SignificantAccountingPoliciesTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/CapitalStock"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityNoteAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityNoteDisclosureTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_StockholdersEquityNoteAbstract" xlink:to="us-gaap_StockholdersEquityNoteDisclosureTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/OptionsandWarrants"> |
| | <loc xlink:type="locator" xlink:label="ocln_OptionsAndWarrantsAbstract" xlink:href="ocln-20230930.xsd#ocln_OptionsAndWarrantsAbstract"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OptionsAndWarrantsTextBlock" xlink:href="ocln-20230930.xsd#ocln_OptionsAndWarrantsTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsAndWarrantsAbstract" xlink:to="ocln_OptionsAndWarrantsTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ConvertiblePromissoryNotes"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtDisclosureTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ConvertibleLongtermNotesPayableCurrentAndNoncurrentAbstract" xlink:to="us-gaap_DebtDisclosureTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/RevenuefromContractswithCustomers"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RevenueFromContractWithCustomerTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RevenueFromContractWithCustomerAbstract" xlink:to="us-gaap_RevenueFromContractWithCustomerTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/FinancialAssets"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_IntangibleAssetsDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IntangibleAssetsDisclosureTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_GoodwillAndIntangibleAssetsDisclosureAbstract" xlink:to="us-gaap_IntangibleAssetsDisclosureTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/LoansPayable"> |
| | <loc xlink:type="locator" xlink:label="ocln_LoansPayableLineItems" xlink:href="ocln-20230930.xsd#ocln_LoansPayableLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_LoansPayableTable" xlink:href="ocln-20230930.xsd#ocln_LoansPayableTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_LoansPayableLineItems" xlink:to="ocln_LoansPayableTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_LoansPayableDisclosureTextBlock" xlink:href="ocln-20230930.xsd#ocln_LoansPayableDisclosureTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LoansPayableLineItems" xlink:to="ocln_LoansPayableDisclosureTextBlock" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/Waterondemandinc"> |
| | <loc xlink:type="locator" xlink:label="ocln_WaterondemandincLineItems" xlink:href="ocln-20230930.xsd#ocln_WaterondemandincLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WaterondemandincTable" xlink:href="ocln-20230930.xsd#ocln_WaterondemandincTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_WaterondemandincLineItems" xlink:to="ocln_WaterondemandincTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_DisclosureOfWaterOnDemandIncTextBlock" xlink:href="ocln-20230930.xsd#ocln_DisclosureOfWaterOnDemandIncTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincLineItems" xlink:to="ocln_DisclosureOfWaterOnDemandIncTextBlock" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/LineofCredit"> |
| | <loc xlink:type="locator" xlink:label="ocln_LineofCreditLineItems" xlink:href="ocln-20230930.xsd#ocln_LineofCreditLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_LineofCreditTable" xlink:href="ocln-20230930.xsd#ocln_LineofCreditTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_LineofCreditLineItems" xlink:to="ocln_LineofCreditTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShortTermDebtTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShortTermDebtTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LineofCreditLineItems" xlink:to="us-gaap_ShortTermDebtTextBlock" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/AssetsHeldforSale"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DisclosureOfLongLivedAssetsHeldForSaleTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DisclosureOfLongLivedAssetsHeldForSaleTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetsHeldForSaleNotPartOfDisposalGroupCurrentAbstract" xlink:to="us-gaap_DisclosureOfLongLivedAssetsHeldForSaleTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/EmployeeRetentionTaxCredit"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_IncomeTaxDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncomeTaxDisclosureTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_IncomeTaxDisclosureAbstract" xlink:to="us-gaap_IncomeTaxDisclosureTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/CommitmentsandContingencies"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommitmentsAndContingenciesDisclosureTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_CommitmentsAndContingenciesDisclosureAbstract" xlink:to="us-gaap_CommitmentsAndContingenciesDisclosureTextBlock" order="0" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/SubsequentEvents"> |
| | <loc xlink:type="locator" xlink:label="ocln_SubsequentEventsLineItems" xlink:href="ocln-20230930.xsd#ocln_SubsequentEventsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SubsequentEventsTable" xlink:href="ocln-20230930.xsd#ocln_SubsequentEventsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_SubsequentEventsLineItems" xlink:to="ocln_SubsequentEventsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SubsequentEventsTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsequentEventsTextBlock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SubsequentEventsLineItems" xlink:to="us-gaap_SubsequentEventsTextBlock" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/AccountingPoliciesByPolicy"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConsolidationPolicyTextBlock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConsolidationPolicyTextBlock"/> |
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| | <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_MachineryAndEquipmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MachineryAndEquipmentMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_MachineryAndEquipmentMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FurnitureAndFixturesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_FurnitureAndFixturesMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_VehiclesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VehiclesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_VehiclesMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LandAndLandImprovementsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LandAndLandImprovementsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_LandAndLandImprovementsMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentUsefulLife" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentUsefulLife"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFurnitureandEquipmentareDepreciatedontheStraightLineMethodLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentUsefulLife" order="1" xbrldt:closed="true"/> |
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| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofPropertyPlantandEquipmentTable"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentLineItems"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ScheduleOfPropertyPlantAndEquipmentTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentByTypeAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ScheduleOfPropertyPlantAndEquipmentTable" xlink:to="us-gaap_PropertyPlantAndEquipmentByTypeAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_PropertyPlantAndEquipmentByTypeAxis" xlink:to="us-gaap_PropertyPlantAndEquipmentTypeDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentTypeDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentTypeDomain"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_MachineryAndEquipmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_MachineryAndEquipmentMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_MachineryAndEquipmentMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ComputerEquipmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ComputerEquipmentMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_ComputerEquipmentMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FurnitureAndFixturesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FurnitureAndFixturesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_FurnitureAndFixturesMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LeaseholdImprovementsMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseholdImprovementsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_LeaseholdImprovementsMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_VehiclesMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VehiclesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="us-gaap_VehiclesMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_DemoUnitsMember" xlink:href="ocln-20230930.xsd#ocln_DemoUnitsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentTypeDomain" xlink:to="ocln_DemoUnitsMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentGross" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentGross"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentGross" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_AccumulatedDepreciationDepletionAndAmortizationPropertyPlantAndEquipment" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_PropertyPlantAndEquipmentLineItems" xlink:to="us-gaap_PropertyPlantAndEquipmentNet" order="3" xbrldt:closed="true"/> |
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| | <loc xlink:type="locator" xlink:label="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesLineItems" xlink:href="ocln-20230930.xsd#ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesTable" xlink:href="ocln-20230930.xsd#ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesLineItems" xlink:to="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByFairValueHierarchyLevelAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesTable" xlink:to="us-gaap_FairValueByFairValueHierarchyLevelAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementsFairValueHierarchyDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_FairValueByFairValueHierarchyLevelAxis" xlink:to="us-gaap_FairValueMeasurementsFairValueHierarchyDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel1Member" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel1Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueInputsLevel1Member" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel2Member" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel2Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueInputsLevel2Member" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueInputsLevel3Member" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueInputsLevel3Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueMeasurementsFairValueHierarchyDomain" xlink:to="us-gaap_FairValueInputsLevel3Member" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueNetAssetLiability" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueNetAssetLiability"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesLineItems" xlink:to="us-gaap_FairValueNetAssetLiability" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofLevelWithintheFairValueInvestmentsandLiabilitiesLineItems" xlink:to="us-gaap_DerivativeAssetsLiabilitiesAtFairValueNet" order="2" xbrldt:closed="true"/> |
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| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofReconciliationoftheDerivativeLiabilityforWhichLevel3inputsTable"> |
| | <loc xlink:type="locator" xlink:label="ocln_ScheduleOfReconciliationOfTheDerivativeLiabilityForWhichLevel3InputsAbstract" xlink:href="ocln-20230930.xsd#ocln_ScheduleOfReconciliationOfTheDerivativeLiabilityForWhichLevel3InputsAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfReconciliationOfTheDerivativeLiabilityForWhichLevel3InputsAbstract" xlink:to="us-gaap_FairValueMeasurementWithUnobservableInputsReconciliationsRecurringBasisLiabilityValue" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_NetLossGainOnConversionOfDebtAndChangeInDerivativeLiability" xlink:href="ocln-20230930.xsd#ocln_NetLossGainOnConversionOfDebtAndChangeInDerivativeLiability"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfReconciliationOfTheDerivativeLiabilityForWhichLevel3InputsAbstract" xlink:to="ocln_NetLossGainOnConversionOfDebtAndChangeInDerivativeLiability" order="1" xbrldt:closed="true"/> |
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| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofFairMarketValueoftheDerivativeLiabilityTable"> |
| | <loc xlink:type="locator" xlink:label="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityLineItems" xlink:href="ocln-20230930.xsd#ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityTable" xlink:href="ocln-20230930.xsd#ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityLineItems" xlink:to="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
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| | <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsRiskFreeInterestRate"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedVolatilityRate" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityLineItems" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardOptionsExercisableWeightedAverageRemainingContractualTerm1" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_SummaryofSignificantAccountingPolicesDetailsScheduleofFairMarketValueoftheDerivativeLiabilityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardFairValueAssumptionsExpectedDividendRate" order="4" xbrldt:closed="true"/> |
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| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofSeriesAPreferredSharesTable"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLineItems"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AuctionMarketPreferredSecuritiesStockSeriesTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLineItems" xlink:to="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_December282022Member" xlink:href="ocln-20230930.xsd#ocln_December282022Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_December282022Member" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_February082023Member" xlink:href="ocln-20230930.xsd#ocln_February082023Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_February082023Member" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_June152023Member" xlink:href="ocln-20230930.xsd#ocln_June152023Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_June152023Member" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_August212023Member" xlink:href="ocln-20230930.xsd#ocln_August212023Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_August212023Member" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_June272023Member" xlink:href="ocln-20230930.xsd#ocln_June272023Member"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_June272023Member" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantsInPeriodWeightedAverageGrantDateFairValue" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofWarrantActivityTable"> |
| | <loc xlink:type="locator" xlink:label="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:href="ocln-20230930.xsd#ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityTable" xlink:href="ocln-20230930.xsd#ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityTable" xlink:to="us-gaap_ClassOfWarrantOrRightAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_ClassOfWarrantOrRightAxis" xlink:to="us-gaap_ClassOfWarrantOrRightDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_WarrantMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="us-gaap_WarrantMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WeightedAverageExercisePriceMember" xlink:href="ocln-20230930.xsd#ocln_WeightedAverageExercisePriceMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfWarrantOrRightDomain" xlink:to="ocln_WeightedAverageExercisePriceMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingNumber" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsOutstandingWeightedAverageExercisePrice" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsGrantsInPeriodGross" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsGrantsInPeriodWeightedAverageExercisePrice" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesStockOptionsExercised" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExercisesInPeriodWeightedAverageExercisePrice" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardOptionsExpirationsInPeriod" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsScheduleofWarrantActivityLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOptionsExpirationsInPeriodWeightedAverageExercisePrice" order="8" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofWeightedAverageRemainingContractualLifeofWarrantsOutstandingTable"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightLineItems" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightLineItems"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightTable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="us-gaap_ClassOfWarrantOrRightLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ClassOfWarrantOrRightTable" xlink:to="srt_RangeAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SubsidiarySaleOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="us-gaap_ClassOfWarrantOrRightTable" xlink:to="us-gaap_SubsidiarySaleOfStockAxis" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_WarrantMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_WarrantMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantTwoMember" xlink:href="ocln-20230930.xsd#ocln_WarrantTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="ocln_WarrantTwoMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantThreeMember" xlink:href="ocln-20230930.xsd#ocln_WarrantThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="ocln_WarrantThreeMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantFourMember" xlink:href="ocln-20230930.xsd#ocln_WarrantFourMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="ocln_WarrantFourMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantFiveMember" xlink:href="ocln-20230930.xsd#ocln_WarrantFiveMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="ocln_WarrantFiveMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantSixMember" xlink:href="ocln-20230930.xsd#ocln_WarrantSixMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="ocln_WarrantSixMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfWarrantOrRightLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfWarrantOrRightLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightOutstanding" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableWarrants" xlink:href="ocln-20230930.xsd#ocln_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableWarrants"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfWarrantOrRightLineItems" xlink:to="ocln_ShareBasedCompensationSharesAuthorizedUnderStockOptionPlansExercisePriceRangeNumberOfExercisableWarrants" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WeightedAverageRemainingContractualLifeyears" xlink:href="ocln-20230930.xsd#ocln_WeightedAverageRemainingContractualLifeyears"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfWarrantOrRightLineItems" xlink:to="ocln_WeightedAverageRemainingContractualLifeyears" order="4" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofOutstandingConvertiblePromissoryNotesTable"> |
| | <loc xlink:type="locator" xlink:label="ocln_ScheduleOfOutstandingConvertiblePromissoryNotesAbstract" xlink:href="ocln-20230930.xsd#ocln_ScheduleOfOutstandingConvertiblePromissoryNotesAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleNotesPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfOutstandingConvertiblePromissoryNotesAbstract" xlink:to="us-gaap_ConvertibleNotesPayable" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherLongTermDebtCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLongTermDebtCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfOutstandingConvertiblePromissoryNotesAbstract" xlink:to="us-gaap_OtherLongTermDebtCurrent" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePromissoryNotes" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePromissoryNotes"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfOutstandingConvertiblePromissoryNotesAbstract" xlink:to="ocln_ConvertiblePromissoryNotes" order="2" xbrldt:closed="true"/> |
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| | <loc xlink:type="locator" xlink:label="ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract" xlink:href="ocln-20230930.xsd#ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueNextTwelveMonths" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearTwo" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearThree" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDueYearFour" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfMaturitiesOfLongTermDebtAbstract" xlink:to="us-gaap_LesseeOperatingLeaseLiabilityPaymentsDue" order="4" xbrldt:closed="true"/> |
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| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/ScheduleofGoodorServicefromContractswithCustomersTable"> |
| | <loc xlink:type="locator" xlink:label="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:href="ocln-20230930.xsd#ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RevenueFromEquipmentContracts" xlink:href="ocln-20230930.xsd#ocln_RevenueFromEquipmentContracts"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_RevenueFromEquipmentContracts" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ComponentSales" xlink:href="ocln-20230930.xsd#ocln_ComponentSales"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_ComponentSales" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WasteWaterTreatmentSystems" xlink:href="ocln-20230930.xsd#ocln_WasteWaterTreatmentSystems"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_WasteWaterTreatmentSystems" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PumpStations" xlink:href="ocln-20230930.xsd#ocln_PumpStations"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_PumpStations" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RentalIncomeNonoperating" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RentalIncomeNonoperating"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="us-gaap_RentalIncomeNonoperating" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RevenueFromServicesSales" xlink:href="ocln-20230930.xsd#ocln_RevenueFromServicesSales"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_RevenueFromServicesSales" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RevenueFromInternetSales" xlink:href="ocln-20230930.xsd#ocln_RevenueFromInternetSales"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_RevenueFromInternetSales" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommissionTraining" xlink:href="ocln-20230930.xsd#ocln_CommissionTraining"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="ocln_CommissionTraining" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherCostOfOperatingRevenue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCostOfOperatingRevenue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ScheduleOfGoodOrServiceFromContractsWithCustomersAbstract" xlink:to="us-gaap_OtherCostOfOperatingRevenue" order="8" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/BasisofPresentationDetails"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateFundingAmount" xlink:href="ocln-20230930.xsd#ocln_AggregateFundingAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="ocln_AggregateFundingAmount" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SaleRevenueNet" xlink:href="ocln-20230930.xsd#ocln_SaleRevenueNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OrganizationConsolidationAndPresentationOfFinancialStatementsAbstract" xlink:to="ocln_SaleRevenueNet" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/SummaryofSignificantAccountingPolicesDetails"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountingPoliciesAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountingPoliciesAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AllowanceForDoubtfulAccountsReceivableNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AllowanceForDoubtfulAccountsReceivableNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_AllowanceForDoubtfulAccountsReceivableNoncurrent" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OtherReceivableAmount" xlink:href="ocln-20230930.xsd#ocln_OtherReceivableAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="ocln_OtherReceivableAmount" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PrepaidExpenseCurrentAndNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrepaidExpenseCurrentAndNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_PrepaidExpenseCurrentAndNoncurrent" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_Depreciation" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Depreciation"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_Depreciation" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DerivativeTermOfContract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeTermOfContract"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_DerivativeTermOfContract" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_DerivativeInstrumentsAndHedgesLiabilitiesNoncurrent" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_DerivativeOutstandingOnDerivative" xlink:href="ocln-20230930.xsd#ocln_DerivativeOutstandingOnDerivative"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="ocln_DerivativeOutstandingOnDerivative" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CapitalUnitsTotalCostToInvestors" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CapitalUnitsTotalCostToInvestors"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AccountingPoliciesAbstract" xlink:to="us-gaap_CapitalUnitsTotalCostToInvestors" order="7" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/CapitalStockDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_CapitalStockLineItems" xlink:href="ocln-20230930.xsd#ocln_CapitalStockLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CapitalStockDetailsTable" xlink:href="ocln-20230930.xsd#ocln_CapitalStockDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_CapitalStockDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionAxis" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_TitleOfIndividualAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="srt_TitleOfIndividualAxis" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualWithRelationshipToEntityDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualWithRelationshipToEntityDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="srt_ConsolidatedEntitiesAxis" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_ConsolidatedEntitiesDomain_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ConsolidatedEntitiesDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_ConsolidatedEntitiesAxis" xlink:to="srt_ConsolidatedEntitiesDomain_0" order="1" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="srt_RangeAxis" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
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| | <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CapitalStockDetailsTable" xlink:to="us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:to="us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_DeferredCompensationArrangementWithIndividualPostretirementBenefitsByTypeOfDeferredCompensationAxis" xlink:to="us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesIPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesIPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_SeriesIPreferredStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_CommonStockMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_PreferredStockMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WaterOnDemandIncWODIPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_WaterOnDemandIncWODIPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_WaterOnDemandIncWODIPreferredStockMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WODIMember" xlink:href="ocln-20230930.xsd#ocln_WODIMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_WODIMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OriginClearIncCommonStockMember" xlink:href="ocln-20230930.xsd#ocln_OriginClearIncCommonStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="ocln_OriginClearIncCommonStockMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OriginClearPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_OriginClearPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_ConsolidatedEntitiesDomain" xlink:to="ocln_OriginClearPreferredStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesCPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesCPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesCPreferredStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesD1PreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesD1PreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesD1PreferredStockMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesFPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesFPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesFPreferredStockMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesGPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesGPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesGPreferredStockMember" order="3" xbrldt:closed="true"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesIPreferredStockMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesJPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesJPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesJPreferredStockMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesKPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesKPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesKPreferredStockMember" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesLreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesLreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesLreferredStockMember" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesMPreferredStockThreeMember" xlink:href="ocln-20230930.xsd#ocln_SeriesMPreferredStockThreeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesMPreferredStockThreeMember" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesOReferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesOReferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesOReferredStockMember" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesPPreferredStocksMember" xlink:href="ocln-20230930.xsd#ocln_SeriesPPreferredStocksMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesPPreferredStocksMember" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesQPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesQPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesQPreferredStockMember" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesYPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesYPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesYPreferredStockMember" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesZPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesZPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesZPreferredStockMember" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesRPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesRPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesRPreferredStockMember" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesSPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesSPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesSPreferredStockMember" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesUPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesUPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesUPreferredStockMember" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesWPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesWPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesWPreferredStockMember" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesXPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesXPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesXPreferredStockMember" order="18" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesVPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesVPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesVPreferredStockMember" order="19" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesTPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesTPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesTPreferredStockMember" order="20" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesAPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesAPreferredStockMember" order="21" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesBPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesBPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesBPreferredStockMember" order="22" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesAAndSeriesBPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesAAndSeriesBPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesAAndSeriesBPreferredStockMember" order="23" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockIncentiveCompensationMember" xlink:href="ocln-20230930.xsd#ocln_PreferredStockIncentiveCompensationMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherPostretirementBenefitsIndividualContractsTypeOfDeferredCompensationDomain" xlink:to="ocln_PreferredStockIncentiveCompensationMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_MrEckelberryMember" xlink:href="ocln-20230930.xsd#ocln_MrEckelberryMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="ocln_MrEckelberryMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OriginClearIncPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_OriginClearIncPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="ocln_OriginClearIncPreferredStockMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_BoardOfDirectorsChairmanMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_BoardOfDirectorsChairmanMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="srt_BoardOfDirectorsChairmanMember" order="0" xbrldt:closed="true"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_WODIMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_FinancingAgreementMember" xlink:href="ocln-20230930.xsd#ocln_FinancingAgreementMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_FinancingAgreementMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePromissoryNotesMember" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePromissoryNotesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_ConvertiblePromissoryNotesMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ServicesMember" xlink:href="ocln-20230930.xsd#ocln_ServicesMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_ServicesMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionAgreementsMember" xlink:href="ocln-20230930.xsd#ocln_ConversionAgreementsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_ConversionAgreementsMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ProgressiveWaterTreatmentIncMember" xlink:href="ocln-20230930.xsd#ocln_ProgressiveWaterTreatmentIncMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_ProgressiveWaterTreatmentIncMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_SharesIssued" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockPerShare" xlink:href="ocln-20230930.xsd#ocln_PreferredStockPerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStockPerShare" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PercentageOfVotingShares" xlink:href="ocln-20230930.xsd#ocln_PercentageOfVotingShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PercentageOfVotingShares" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PurchasePriceOfPreferredStock" xlink:href="ocln-20230930.xsd#ocln_PurchasePriceOfPreferredStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PurchasePriceOfPreferredStock" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PurchasePriceOfPreferredStockShares" xlink:href="ocln-20230930.xsd#ocln_PurchasePriceOfPreferredStockShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PurchasePriceOfPreferredStockShares" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockShareOutstanding" xlink:href="ocln-20230930.xsd#ocln_PreferredStockShareOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStockShareOutstanding" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesAuthorized"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockSharesAuthorized" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePreferredStockPerShare" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePreferredStockPerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_ConvertiblePreferredStockPerShare" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PercentageOfCommonStockOutstanding" xlink:href="ocln-20230930.xsd#ocln_PercentageOfCommonStockOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PercentageOfCommonStockOutstanding" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IncreasedCommonStockPercentage" xlink:href="ocln-20230930.xsd#ocln_IncreasedCommonStockPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_IncreasedCommonStockPercentage" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockSharesIssued" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockSharesOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockSharesOutstanding" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_DesignatedPreferredStockIssued" xlink:href="ocln-20230930.xsd#ocln_DesignatedPreferredStockIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_DesignatedPreferredStockIssued" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockLiquidationPreference" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockLiquidationPreference"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockLiquidationPreference" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AnnualRatePercentage" xlink:href="ocln-20230930.xsd#ocln_AnnualRatePercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AnnualRatePercentage" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateRedemptionPrice" xlink:href="ocln-20230930.xsd#ocln_AggregateRedemptionPrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AggregateRedemptionPrice" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockParOrStatedValuePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockParOrStatedValuePerShare" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_DividedClosingPrice" xlink:href="ocln-20230930.xsd#ocln_DividedClosingPrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_DividedClosingPrice" order="18" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateOfShares" xlink:href="ocln-20230930.xsd#ocln_AggregateOfShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AggregateOfShares" order="19" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockDescription" xlink:href="ocln-20230930.xsd#ocln_PreferredStockDescription"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStockDescription" order="20" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_SharesOutstanding" order="21" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockSharesIssuedAndOutstanding" xlink:href="ocln-20230930.xsd#ocln_PreferredStockSharesIssuedAndOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStockSharesIssuedAndOutstanding" order="22" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockDividendRatePercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockDividendRatePercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockDividendRatePercentage" order="23" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionOfPreferredShares" xlink:href="ocln-20230930.xsd#ocln_ConversionOfPreferredShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_ConversionOfPreferredShares" order="24" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_ConvertiblePreferredStockSharesIssuedUponConversion" order="25" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStatedValue" xlink:href="ocln-20230930.xsd#ocln_PreferredStatedValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStatedValue" order="26" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockLiquidationPreferenceValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockLiquidationPreferenceValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockLiquidationPreferenceValue" order="27" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RedemptionPricePerShare" xlink:href="ocln-20230930.xsd#ocln_RedemptionPricePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_RedemptionPricePerShare" order="28" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_StatedValuePercentage" xlink:href="ocln-20230930.xsd#ocln_StatedValuePercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_StatedValuePercentage" order="29" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtConversionConvertedInstrumentRate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtConversionConvertedInstrumentRate"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_DebtConversionConvertedInstrumentRate" order="30" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OutstandingCommonStockPercentage" xlink:href="ocln-20230930.xsd#ocln_OutstandingCommonStockPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_OutstandingCommonStockPercentage" order="31" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionOfStockSharesIssued" xlink:href="ocln-20230930.xsd#ocln_ConversionOfStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_ConversionOfStockSharesIssued" order="32" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockPerShareAmountsOfPreferredDividendsInArrears" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockPerShareAmountsOfPreferredDividendsInArrears"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockPerShareAmountsOfPreferredDividendsInArrears" order="33" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PercentageOfCommonStock" xlink:href="ocln-20230930.xsd#ocln_PercentageOfCommonStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PercentageOfCommonStock" order="34" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockOutstandingIncreasedPercentage" xlink:href="ocln-20230930.xsd#ocln_CommonStockOutstandingIncreasedPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_CommonStockOutstandingIncreasedPercentage" order="35" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateSharesIssued" xlink:href="ocln-20230930.xsd#ocln_AggregateSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AggregateSharesIssued" order="36" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockParOrStatedValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockParOrStatedValuePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_CommonStockParOrStatedValuePerShare" order="37" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionPricePercentage" xlink:href="ocln-20230930.xsd#ocln_ConversionPricePercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_ConversionPricePercentage" order="38" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_StockAndWarrantsIssuedDuringPeriodValuePreferredStockAndWarrants" order="39" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueAdjustmentOfWarrants" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAdjustmentOfWarrants"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_FairValueAdjustmentOfWarrants" order="40" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_WarrantExercisePriceIncrease" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantExercisePriceIncrease"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_WarrantExercisePriceIncrease" order="41" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateShare" xlink:href="ocln-20230930.xsd#ocln_AggregateShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AggregateShare" order="42" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_subscriptionAgreementPercentage" xlink:href="ocln-20230930.xsd#ocln_subscriptionAgreementPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_subscriptionAgreementPercentage" order="43" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_subscriptionAgreement" xlink:href="ocln-20230930.xsd#ocln_subscriptionAgreement"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_subscriptionAgreement" order="44" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_originalPurchasePrice" xlink:href="ocln-20230930.xsd#ocln_originalPurchasePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_originalPurchasePrice" order="45" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OriginationOfLoanToPurchaseCommonStock" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OriginationOfLoanToPurchaseCommonStock"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_OriginationOfLoanToPurchaseCommonStock" order="46" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_DividedPrice" xlink:href="ocln-20230930.xsd#ocln_DividedPrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_DividedPrice" order="47" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OriginalIssuePrice" xlink:href="ocln-20230930.xsd#ocln_OriginalIssuePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_OriginalIssuePrice" order="48" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AnnualNetProfitsPercentage" xlink:href="ocln-20230930.xsd#ocln_AnnualNetProfitsPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AnnualNetProfitsPercentage" order="49" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SubsidiarysAnnualNetProfits" xlink:href="ocln-20230930.xsd#ocln_SubsidiarysAnnualNetProfits"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_SubsidiarysAnnualNetProfits" order="50" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_NumberOfAcquireWarrantShares" xlink:href="ocln-20230930.xsd#ocln_NumberOfAcquireWarrantShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_NumberOfAcquireWarrantShares" order="51" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockValue" order="52" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockFairValue" xlink:href="ocln-20230930.xsd#ocln_PreferredStockFairValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStockFairValue" order="53" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_ClassOfWarrantOrRightExercisePriceOfWarrantsOrRights1" order="54" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonStockSharesOutstandingPercentage" xlink:href="ocln-20230930.xsd#ocln_CommonStockSharesOutstandingPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_CommonStockSharesOutstandingPercentage" order="55" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RealPropertyCost" xlink:href="ocln-20230930.xsd#ocln_RealPropertyCost"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_RealPropertyCost" order="56" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredStockPurchasePrice" xlink:href="ocln-20230930.xsd#ocln_PreferredStockPurchasePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_PreferredStockPurchasePrice" order="57" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_NumberOfWarrantsShares" xlink:href="ocln-20230930.xsd#ocln_NumberOfWarrantsShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_NumberOfWarrantsShares" order="58" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateShares" xlink:href="ocln-20230930.xsd#ocln_AggregateShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AggregateShares" order="59" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AccruedDividends" xlink:href="ocln-20230930.xsd#ocln_AccruedDividends"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_AccruedDividends" order="60" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtConversionConvertedInstrumentSharesIssued1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtConversionConvertedInstrumentSharesIssued1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_DebtConversionConvertedInstrumentSharesIssued1" order="61" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_DebtInstrumentConvertibleConversionPrice1" order="62" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_CommonStockValue" order="63" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SaleOfAggregateShares" xlink:href="ocln-20230930.xsd#ocln_SaleOfAggregateShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_SaleOfAggregateShares" order="64" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesParValuePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AuctionMarketPreferredSecuritiesStockSeriesParValuePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_AuctionMarketPreferredSecuritiesStockSeriesParValuePerShare" order="65" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_SaleOfStockPricePerShare" order="66" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherExpenses" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherExpenses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_OtherExpenses" order="67" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommonSharesIssued" xlink:href="ocln-20230930.xsd#ocln_CommonSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_CommonSharesIssued" order="68" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PaymentsOfFinancingCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsOfFinancingCosts"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PaymentsOfFinancingCosts" order="69" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentFaceAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentFaceAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_DebtInstrumentFaceAmount" order="70" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentIncreaseAccruedInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentIncreaseAccruedInterest"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_DebtInstrumentIncreaseAccruedInterest" order="71" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleDebt"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_ConvertibleDebt" order="72" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LongTermDebtFairValue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LongTermDebtFairValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_LongTermDebtFairValue" order="73" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionOfCommonShares" xlink:href="ocln-20230930.xsd#ocln_ConversionOfCommonShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_ConversionOfCommonShares" order="74" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockRedeemedOrCalledDuringPeriodShares" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockRedeemedOrCalledDuringPeriodShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_StockRedeemedOrCalledDuringPeriodShares" order="75" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_SharePrice" order="76" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RedeemedCommonStockValue" xlink:href="ocln-20230930.xsd#ocln_RedeemedCommonStockValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_RedeemedCommonStockValue" order="77" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SaleOfSecurities" xlink:href="ocln-20230930.xsd#ocln_SaleOfSecurities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_SaleOfSecurities" order="78" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ProceedsFromSaleOfShares" xlink:href="ocln-20230930.xsd#ocln_ProceedsFromSaleOfShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="ocln_ProceedsFromSaleOfShares" order="79" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockSharesConverted1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockSharesConverted1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_ConversionOfStockSharesConverted1" order="80" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockConversionBasis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockConversionBasis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_PreferredStockConversionBasis" order="81" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockConversionBasis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockConversionBasis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_CommonStockConversionBasis" order="82" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockholdersEquityNoteStockSplit" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockholdersEquityNoteStockSplit"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_StockholdersEquityNoteStockSplit" order="83" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_CommonStockSharesIssued" order="84" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_CommonStockSharesOutstanding" order="85" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesAuthorized" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesAuthorized"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CapitalStockLineItems" xlink:to="us-gaap_CommonStockSharesAuthorized" order="86" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/OptionsandWarrantsDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_OptionsandWarrantsDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_OptionsandWarrantsDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OptionsandWarrantsDetailsTable" xlink:href="ocln-20230930.xsd#ocln_OptionsandWarrantsDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="ocln_OptionsandWarrantsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_OptionsandWarrantsDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_OptionsandWarrantsDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:to="us-gaap_RelatedPartyDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_TitleOfIndividualAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_OptionsandWarrantsDetailsTable" xlink:to="srt_TitleOfIndividualAxis" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualWithRelationshipToEntityDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_TitleOfIndividualWithRelationshipToEntityDomain_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_TitleOfIndividualWithRelationshipToEntityDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_TitleOfIndividualAxis" xlink:to="srt_TitleOfIndividualWithRelationshipToEntityDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_OptionsandWarrantsDetailsTable" xlink:to="srt_RangeAxis" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SubsidiarySaleOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SubsidiarySaleOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_OptionsandWarrantsDetailsTable" xlink:to="us-gaap_SubsidiarySaleOfStockAxis" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNameOfTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNameOfTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_SubsidiarySaleOfStockAxis" xlink:to="us-gaap_SaleOfStockNameOfTransactionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_SaleOfStockNameOfTransactionDomain" xlink:to="us-gaap_CommonStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RestrictedStockGrantAgreementMember" xlink:href="ocln-20230930.xsd#ocln_RestrictedStockGrantAgreementMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyDomain" xlink:to="ocln_RestrictedStockGrantAgreementMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_ChiefExecutiveOfficerMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_ChiefExecutiveOfficerMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="srt_ChiefExecutiveOfficerMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_BoardEmployeesAndConsultantsMember" xlink:href="ocln-20230930.xsd#ocln_BoardEmployeesAndConsultantsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_TitleOfIndividualWithRelationshipToEntityDomain" xlink:to="ocln_BoardEmployeesAndConsultantsMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_EmployeeConsultantsAndRestrictedStockGrantAgreementsMember" xlink:href="ocln-20230930.xsd#ocln_EmployeeConsultantsAndRestrictedStockGrantAgreementsMember"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="us-gaap_CommonStockSharesIssued" order="1" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="us-gaap_GrossProfit" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OperatingIncomeLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OperatingIncomeLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="us-gaap_OperatingIncomeLoss" order="3" xbrldt:closed="true"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent" order="5" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="ocln_AggregateShareIssued" order="7" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="ocln_IssuedOfPurchaseWarrants" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilitiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilitiesCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="us-gaap_DerivativeLiabilitiesCurrent" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_WarrantsAndRightsOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WarrantsAndRightsOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_OptionsandWarrantsDetailsLineItems" xlink:to="us-gaap_WarrantsAndRightsOutstanding" order="10" xbrldt:closed="true"/> |
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| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePromissoryNotesDetailsTable" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePromissoryNotesDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_ConvertiblePromissoryNotesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionsByRelatedPartyAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionsByRelatedPartyAxis"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_ConvertiblePromissoryNotesDetailsTable" xlink:to="us-gaap_AwardDateAxis" order="4" xbrldt:closed="true"/> |
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| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesXPreferredStockMember" order="0" xbrldt:closed="true"/> |
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| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentInterestRateStatedPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateStatedPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_DebtInstrumentInterestRateStatedPercentage" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConversionOfStockAmountConverted1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConversionOfStockAmountConverted1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_ConversionOfStockAmountConverted1" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardPurchasePriceOfCommonStockPercent" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_SharesIssued" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PrincipalAmount" xlink:href="ocln-20230930.xsd#ocln_PrincipalAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_PrincipalAmount" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DepositLiabilitiesAccruedInterest" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DepositLiabilitiesAccruedInterest"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_DepositLiabilitiesAccruedInterest" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_FairValueOptionAggregateDifferencesLoansAndLongTermReceivables" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateRemainingAmount" xlink:href="ocln-20230930.xsd#ocln_AggregateRemainingAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_AggregateRemainingAmount" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentMaturityDate" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentMaturityDate"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_DebtInstrumentMaturityDate" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockConvertibleConversionPriceDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockConvertibleConversionPriceDecrease"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_CommonStockConvertibleConversionPriceDecrease" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ShortTermRemainingBalance" xlink:href="ocln-20230930.xsd#ocln_ShortTermRemainingBalance"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_ShortTermRemainingBalance" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountsPayableTradeCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsPayableTradeCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_AccountsPayableTradeCurrent" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PercentageOfAverageOfThreeLowestClosingPrices" xlink:href="ocln-20230930.xsd#ocln_PercentageOfAverageOfThreeLowestClosingPrices"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_PercentageOfAverageOfThreeLowestClosingPrices" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateAmount" xlink:href="ocln-20230930.xsd#ocln_AggregateAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_AggregateAmount" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionPricePerShareOfDebtDescriptions" xlink:href="ocln-20230930.xsd#ocln_ConversionPricePerShareOfDebtDescriptions"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_ConversionPricePerShareOfDebtDescriptions" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_InvestorAmount" xlink:href="ocln-20230930.xsd#ocln_InvestorAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_InvestorAmount" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ReservedShares" xlink:href="ocln-20230930.xsd#ocln_ReservedShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_ReservedShares" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ConvertibleDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ConvertibleDebt"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_ConvertibleDebt" order="18" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromUnsecuredNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromUnsecuredNotesPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_ProceedsFromUnsecuredNotesPayable" order="19" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PenaltyPerDay" xlink:href="ocln-20230930.xsd#ocln_PenaltyPerDay"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_PenaltyPerDay" order="20" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_InterestExpenseDebtExcludingAmortization" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestExpenseDebtExcludingAmortization"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_InterestExpenseDebtExcludingAmortization" order="21" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtDefaultShorttermDebtAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtDefaultShorttermDebtAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_DebtDefaultShorttermDebtAmount" order="22" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DerivativeLiabilitiesNoncurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DerivativeLiabilitiesNoncurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_DerivativeLiabilitiesNoncurrent" order="23" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromSecuredNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSecuredNotesPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_ProceedsFromSecuredNotesPayable" order="24" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_InvestorsInterestPercentage" xlink:href="ocln-20230930.xsd#ocln_InvestorsInterestPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_InvestorsInterestPercentage" order="25" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SupplementalDeferredPurchasePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SupplementalDeferredPurchasePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_SupplementalDeferredPurchasePrice" order="26" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherAdditionalCapital" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAdditionalCapital"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_OtherAdditionalCapital" order="27" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredUnitsOfferingCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredUnitsOfferingCosts"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_PreferredUnitsOfferingCosts" order="28" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateShare" xlink:href="ocln-20230930.xsd#ocln_AggregateShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_AggregateShare" order="29" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="us-gaap_SharePrice" order="30" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePromissoryNote" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePromissoryNote"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_ConvertiblePromissoryNotesDetailsLineItems" xlink:to="ocln_ConvertiblePromissoryNote" order="31" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/RevenuefromContractswithCustomersDetails"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RevenueFromContractWithCustomerAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RevenueFromContractWithCustomerAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ContractWithCustomerAssetNetCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetNetCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RevenueFromContractWithCustomerAbstract" xlink:to="us-gaap_ContractWithCustomerAssetNetCurrent" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherLiabilities" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLiabilities"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RevenueFromContractWithCustomerAbstract" xlink:to="us-gaap_OtherLiabilities" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/FinancialAssetsDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_FinancialAssetsDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_FinancialAssetsDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_FinancialAssetsDetailsTable" xlink:href="ocln-20230930.xsd#ocln_FinancialAssetsDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_FinancialAssetsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_FinancialAssetsDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_FinancialAssetsDetailsTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_FinancialAssetsDetailsTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_CommonStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesCPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesCPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesCPreferredStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OriginClearIncTechnologyMember" xlink:href="ocln-20230930.xsd#ocln_OriginClearIncTechnologyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_OriginClearIncTechnologyMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_InterestAndFeeIncomeLoansAndLeases" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="us-gaap_InterestAndFeeIncomeLoansAndLeases" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregatePrincipalAmount" xlink:href="ocln-20230930.xsd#ocln_AggregatePrincipalAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_AggregatePrincipalAmount" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConversionOfStockShareConverted" xlink:href="ocln-20230930.xsd#ocln_ConversionOfStockShareConverted"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_ConversionOfStockShareConverted" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="us-gaap_PaymentsToAcquireTradingSecuritiesHeldforinvestment" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtSecuritiesUnrealizedGainLoss" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtSecuritiesUnrealizedGainLoss"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="us-gaap_DebtSecuritiesUnrealizedGainLoss" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConvertiblePreferredStocks" xlink:href="ocln-20230930.xsd#ocln_ConvertiblePreferredStocks"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_ConvertiblePreferredStocks" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_FairValueMarketPricePerShares" xlink:href="ocln-20230930.xsd#ocln_FairValueMarketPricePerShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_FairValueMarketPricePerShares" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SharePriceAmount" xlink:href="ocln-20230930.xsd#ocln_SharePriceAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_SharePriceAmount" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PreferredSharesFairValue" xlink:href="ocln-20230930.xsd#ocln_PreferredSharesFairValue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="ocln_PreferredSharesFairValue" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueOptionChangesInFairValueGainLoss1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueOptionChangesInFairValueGainLoss1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_FinancialAssetsDetailsLineItems" xlink:to="us-gaap_FairValueOptionChangesInFairValueGainLoss1" order="10" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/LoansPayableDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_LoansPayableDisclosureAbstract" xlink:href="ocln-20230930.xsd#ocln_LoansPayableDisclosureAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AdditionsToOtherAssetsAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AdditionsToOtherAssetsAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LoansPayableDisclosureAbstract" xlink:to="us-gaap_AdditionsToOtherAssetsAmount" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LeaseCost" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LeaseCost"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LoansPayableDisclosureAbstract" xlink:to="us-gaap_LeaseCost" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_NotesAndLoansPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_NotesAndLoansPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_LoansPayableDisclosureAbstract" xlink:to="us-gaap_NotesAndLoansPayable" order="2" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/WaterondemandincDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_WaterondemandincDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_WaterondemandincDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WaterondemandincDetailsTable" xlink:href="ocln-20230930.xsd#ocln_WaterondemandincDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_WaterondemandincDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="us-gaap_RelatedPartyTransactionAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RelatedPartyTransactionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RelatedPartyTransactionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_RelatedPartyTransactionAxis" xlink:to="us-gaap_RelatedPartyTransactionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AssetAcquisitionAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="us-gaap_AssetAcquisitionAxis" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AssetAcquisitionDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_AssetAcquisitionAxis" xlink:to="us-gaap_AssetAcquisitionDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AssetAcquisitionDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_AssetAcquisitionAxis" xlink:to="us-gaap_AssetAcquisitionDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="us-gaap_DebtInstrumentAxis" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentNameDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentNameDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentNameDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentNameDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_DebtInstrumentAxis" xlink:to="us-gaap_DebtInstrumentNameDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_VestingAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="us-gaap_VestingAxis" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_VestingDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_VestingAxis" xlink:to="us-gaap_VestingDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_VestingDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VestingDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_VestingAxis" xlink:to="us-gaap_VestingDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementEquityComponentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementEquityComponentsAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="us-gaap_StatementEquityComponentsAxis" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_EquityComponentDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_EquityComponentDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementEquityComponentsAxis" xlink:to="us-gaap_EquityComponentDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_OwnershipAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_WaterondemandincDetailsTable" xlink:to="srt_OwnershipAxis" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_OwnershipDomain" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_OwnershipAxis" xlink:to="srt_OwnershipDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_OwnershipDomain_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_OwnershipDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_OwnershipAxis" xlink:to="srt_OwnershipDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WODMember" xlink:href="ocln-20230930.xsd#ocln_WODMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_AssetAcquisitionDomain" xlink:to="ocln_WODMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_EquityComponentDomain" xlink:to="us-gaap_CommonStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonClassBMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonClassBMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_CommonClassBMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesAPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesAPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesAPreferredStockMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SeriesBPreferredStockMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SeriesBPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="us-gaap_SeriesBPreferredStockMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheOneMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationAwardTrancheOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_VestingDomain" xlink:to="us-gaap_ShareBasedCompensationAwardTrancheOneMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationAwardTrancheTwoMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationAwardTrancheTwoMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_VestingDomain" xlink:to="us-gaap_ShareBasedCompensationAwardTrancheTwoMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SPACMember" xlink:href="ocln-20230930.xsd#ocln_SPACMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtInstrumentNameDomain" xlink:to="ocln_SPACMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RestrictedStockGrantAgreementsMember" xlink:href="ocln-20230930.xsd#ocln_RestrictedStockGrantAgreementsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtInstrumentNameDomain" xlink:to="ocln_RestrictedStockGrantAgreementsMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SponsorMember" xlink:href="ocln-20230930.xsd#ocln_SponsorMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_SponsorMember" order="0" xbrldt:closed="true"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_SPACMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WODIMember" xlink:href="ocln-20230930.xsd#ocln_WODIMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_WODIMember" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ModularWaterSystemsMember" xlink:href="ocln-20230930.xsd#ocln_ModularWaterSystemsMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_ModularWaterSystemsMember" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WODIAndMWSMember" xlink:href="ocln-20230930.xsd#ocln_WODIAndMWSMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_WODIAndMWSMember" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PWTMember" xlink:href="ocln-20230930.xsd#ocln_PWTMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_PWTMember" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PWTOneMember" xlink:href="ocln-20230930.xsd#ocln_PWTOneMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_PWTOneMember" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ProgressiveWaterTreatmentIncMember" xlink:href="ocln-20230930.xsd#ocln_ProgressiveWaterTreatmentIncMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_ProgressiveWaterTreatmentIncMember" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OriginClearIncMember" xlink:href="ocln-20230930.xsd#ocln_OriginClearIncMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_OriginClearIncMember" order="8" xbrldt:closed="true"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_RestrictedStockGrantAgreementsMember" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WODIBoardMember" xlink:href="ocln-20230930.xsd#ocln_WODIBoardMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_RelatedPartyTransactionDomain" xlink:to="ocln_WODIBoardMember" order="10" xbrldt:closed="true"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_OwnershipDomain" xlink:to="ocln_SponsorMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WaterOnDemandIncDescription" xlink:href="ocln-20230930.xsd#ocln_WaterOnDemandIncDescription"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_WaterOnDemandIncDescription" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherInvestments"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_OtherInvestments" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_MembershipInterestPercentage" xlink:href="ocln-20230930.xsd#ocln_MembershipInterestPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_MembershipInterestPercentage" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SponsorOwnsShares" xlink:href="ocln-20230930.xsd#ocln_SponsorOwnsShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_SponsorOwnsShares" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_CommonStockSharesIssued" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockSharesOutstanding" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockSharesOutstanding"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_CommonStockSharesOutstanding" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PaidTotalAmount" xlink:href="ocln-20230930.xsd#ocln_PaidTotalAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_PaidTotalAmount" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_MembershipInterestAmount" xlink:href="ocln-20230930.xsd#ocln_MembershipInterestAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_MembershipInterestAmount" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CompensatingBalanceAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CompensatingBalanceAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_CompensatingBalanceAmount" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_IncreaseDecreaseInNotesPayableRelatedPartiesCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_IncreaseDecreaseInNotesPayableRelatedPartiesCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_IncreaseDecreaseInNotesPayableRelatedPartiesCurrent" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PurchasePrice" xlink:href="ocln-20230930.xsd#ocln_PurchasePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_PurchasePrice" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentInterestRateIncreaseDecrease" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateIncreaseDecrease"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_DebtInstrumentInterestRateIncreaseDecrease" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_Deposits" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_Deposits"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_Deposits" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockPricePerShare" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockPricePerShare"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_SaleOfStockPricePerShare" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StockIssuedDuringPeriodSharesOther" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StockIssuedDuringPeriodSharesOther"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_StockIssuedDuringPeriodSharesOther" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SpecialMeetingTotalNumberOfPercentage" xlink:href="ocln-20230930.xsd#ocln_SpecialMeetingTotalNumberOfPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_SpecialMeetingTotalNumberOfPercentage" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SufficientVotesPercentage" xlink:href="ocln-20230930.xsd#ocln_SufficientVotesPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_SufficientVotesPercentage" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_OtherAssetsExchangeShares" xlink:href="ocln-20230930.xsd#ocln_OtherAssetsExchangeShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_OtherAssetsExchangeShares" order="18" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DeferredTaxAssetsEquityMethodInvestments" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredTaxAssetsEquityMethodInvestments"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_DeferredTaxAssetsEquityMethodInvestments" order="19" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CashHeldInForeignCurrency" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CashHeldInForeignCurrency"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_CashHeldInForeignCurrency" order="20" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_VariableInterestEntityOwnershipPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_VariableInterestEntityOwnershipPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_VariableInterestEntityOwnershipPercentage" order="21" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ShareholdersPercentage" xlink:href="ocln-20230930.xsd#ocln_ShareholdersPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_ShareholdersPercentage" order="22" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AssetAcquisitionPriceOfAcquisitionExpected" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetAcquisitionPriceOfAcquisitionExpected"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_AssetAcquisitionPriceOfAcquisitionExpected" order="23" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_EquityCombinedPercentage" xlink:href="ocln-20230930.xsd#ocln_EquityCombinedPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_EquityCombinedPercentage" order="24" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_TotalShares" xlink:href="ocln-20230930.xsd#ocln_TotalShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_TotalShares" order="25" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuedAndOutstandingPercentage" xlink:href="ocln-20230930.xsd#ocln_IssuedAndOutstandingPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_IssuedAndOutstandingPercentage" order="26" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AdditionalTerm" xlink:href="ocln-20230930.xsd#ocln_AdditionalTerm"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_AdditionalTerm" order="27" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AggregateAmountsOfSPAC" xlink:href="ocln-20230930.xsd#ocln_AggregateAmountsOfSPAC"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_AggregateAmountsOfSPAC" order="28" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromUnsecuredNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromUnsecuredNotesPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_ProceedsFromUnsecuredNotesPayable" order="29" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentInterestRateEffectivePercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentInterestRateEffectivePercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_DebtInstrumentInterestRateEffectivePercentage" order="30" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherNotesPayable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherNotesPayable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_OtherNotesPayable" order="31" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherAssetsCurrent" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherAssetsCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_OtherAssetsCurrent" order="32" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ExchangeShares" xlink:href="ocln-20230930.xsd#ocln_ExchangeShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_ExchangeShares" order="33" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_ConsiderationShares" xlink:href="ocln-20230930.xsd#ocln_ConsiderationShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_ConsiderationShares" order="34" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_WeightedAverageNumberDilutedSharesOutstandingAdjustment" order="35" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DeferredRevenue" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredRevenue"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_DeferredRevenue" order="36" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharePrice" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharePrice"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_SharePrice" order="37" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_SaleOfStockNumberOfSharesIssuedInTransaction" order="38" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharesIssued" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharesIssued"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_SharesIssued" order="39" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RestrictedInvestmentsPercentOfNetAssets" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RestrictedInvestmentsPercentOfNetAssets"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_RestrictedInvestmentsPercentOfNetAssets" order="40" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_SharebasedCompensationArrangementBySharebasedPaymentAwardAwardVestingRightsPercentage" order="41" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_ShareBasedCompensationArrangementByShareBasedPaymentAwardPercentageOfOutstandingStockMaximum" order="42" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtInstrumentConvertibleConversionPrice1" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtInstrumentConvertibleConversionPrice1"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="us-gaap_DebtInstrumentConvertibleConversionPrice1" order="43" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_IssuanceOfShares" xlink:href="ocln-20230930.xsd#ocln_IssuanceOfShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_WaterondemandincDetailsLineItems" xlink:to="ocln_IssuanceOfShares" order="44" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/LineofCreditDetails"> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DebtDisclosureAbstract" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DebtDisclosureAbstract"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_LineOfCreditFacilityIncreaseDecreaseForPeriodNet" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityInterestRateDuringPeriod"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_LineOfCreditFacilityInterestRateDuringPeriod" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PrincipalInvestmentGainsLosses" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PrincipalInvestmentGainsLosses"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_PrincipalInvestmentGainsLosses" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_InvestmentSoldNotYetPurchasedBalancePrincipalAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_InvestmentSoldNotYetPurchasedBalancePrincipalAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_InvestmentSoldNotYetPurchasedBalancePrincipalAmount" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_DebtDisclosureAbstract" xlink:to="us-gaap_LineOfCreditFacilityCurrentBorrowingCapacity" order="4" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/AssetsHeldforSaleDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_AssetsHeldforSaleDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_AssetsHeldforSaleDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AssetsHeldforSaleDetailsTable" xlink:href="ocln-20230930.xsd#ocln_AssetsHeldforSaleDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="ocln_AssetsHeldforSaleDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_StatementClassOfStockAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_StatementClassOfStockAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_AssetsHeldforSaleDetailsTable" xlink:to="us-gaap_StatementClassOfStockAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ClassOfStockDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ClassOfStockDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_StatementClassOfStockAxis" xlink:to="us-gaap_ClassOfStockDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeAxis" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_AssetsHeldforSaleDetailsTable" xlink:to="srt_RangeAxis" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_RangeMember_0" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_RangeMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="srt_RangeAxis" xlink:to="srt_RangeMember_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueByAssetClassAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueByAssetClassAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_AssetsHeldforSaleDetailsTable" xlink:to="us-gaap_FairValueByAssetClassAxis" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_FairValueByAssetClassAxis" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_FairValueByAssetClassAxis" xlink:to="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MaximumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MaximumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MaximumMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="srt_MinimumMember" xlink:href="https://xbrl.fasb.org/srt/2023/elts/srt-2023.xsd#srt_MinimumMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="srt_RangeMember" xlink:to="srt_MinimumMember" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PropertyPlantAndEquipmentMember" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PropertyPlantAndEquipmentMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_FairValueAssetsMeasuredOnRecurringBasisUnobservableInputReconciliationByAssetClassDomain" xlink:to="us-gaap_PropertyPlantAndEquipmentMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SeriesTPreferredStockMember" xlink:href="ocln-20230930.xsd#ocln_SeriesTPreferredStockMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_ClassOfStockDomain" xlink:to="ocln_SeriesTPreferredStockMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PreferredStockConvertibleSharesIssuable" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PreferredStockConvertibleSharesIssuable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_PreferredStockConvertibleSharesIssuable" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_NumberOfWarrantsShares" xlink:href="ocln-20230930.xsd#ocln_NumberOfWarrantsShares"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="ocln_NumberOfWarrantsShares" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_CommonStockDividendsPerShareDeclared" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_CommonStockDividendsPerShareDeclared"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_CommonStockDividendsPerShareDeclared" order="3" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ServicingAssetAtFairValueAmount" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ServicingAssetAtFairValueAmount"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_ServicingAssetAtFairValueAmount" order="4" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" order="5" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_PrivateNeighborhoodDevelopment" xlink:href="ocln-20230930.xsd#ocln_PrivateNeighborhoodDevelopment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="ocln_PrivateNeighborhoodDevelopment" order="6" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherLongTermDebt" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherLongTermDebt"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_OtherLongTermDebt" order="7" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ContractWithCustomerAssetSale" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ContractWithCustomerAssetSale"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_ContractWithCustomerAssetSale" order="8" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AssetImpairmentCharges" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AssetImpairmentCharges"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_AssetImpairmentCharges" order="9" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DeferredOfferingCosts" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredOfferingCosts"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_DeferredOfferingCosts" order="10" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_DeferredGainOnSaleOfProperty" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_DeferredGainOnSaleOfProperty"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_DeferredGainOnSaleOfProperty" order="11" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_InitialPayment" xlink:href="ocln-20230930.xsd#ocln_InitialPayment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="ocln_InitialPayment" order="12" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_RemainingInitialPayment" xlink:href="ocln-20230930.xsd#ocln_RemainingInitialPayment"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="ocln_RemainingInitialPayment" order="13" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ReplacementReserveEscrow" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ReplacementReserveEscrow"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_ReplacementReserveEscrow" order="14" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_ProceedsFromCommissionsReceived" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_ProceedsFromCommissionsReceived"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_ProceedsFromCommissionsReceived" order="15" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_PaymentsForFees" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_PaymentsForFees"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_PaymentsForFees" order="16" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AccountsReceivablePurchase" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AccountsReceivablePurchase"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_AccountsReceivablePurchase" order="17" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_AdditionalPaymentsTotal" xlink:href="ocln-20230930.xsd#ocln_AdditionalPaymentsTotal"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="ocln_AdditionalPaymentsTotal" order="18" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherReceivables" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherReceivables"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_AssetsHeldforSaleDetailsLineItems" xlink:to="us-gaap_OtherReceivables" order="19" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/EmployeeRetentionTaxCreditDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_EmployeeRetentionTaxCreditDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_EmployeeRetentionTaxCreditDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_EmployeeRetentionTaxCreditDetailsTable" xlink:href="ocln-20230930.xsd#ocln_EmployeeRetentionTaxCreditDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_EmployeeRetentionTaxCreditDetailsLineItems" xlink:to="ocln_EmployeeRetentionTaxCreditDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherIncome" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherIncome"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_EmployeeRetentionTaxCreditDetailsLineItems" xlink:to="us-gaap_OtherIncome" order="1" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/CommitmentsandContingenciesDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_CommitmentsandContingenciesDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_CommitmentsandContingenciesDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_CommitmentsandContingenciesDetailsTable" xlink:href="ocln-20230930.xsd#ocln_CommitmentsandContingenciesDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_CommitmentsandContingenciesDetailsLineItems" xlink:to="ocln_CommitmentsandContingenciesDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsAxis" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsAxis"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/hypercube-dimension" xlink:from="ocln_CommitmentsandContingenciesDetailsTable" xlink:to="us-gaap_OtherCommitmentsAxis" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsDomain" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-domain" xlink:from="us-gaap_OtherCommitmentsAxis" xlink:to="us-gaap_OtherCommitmentsDomain" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_OtherCommitmentsDomain_0" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_OtherCommitmentsDomain"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/dimension-default" xlink:from="us-gaap_OtherCommitmentsAxis" xlink:to="us-gaap_OtherCommitmentsDomain_0" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_MckinneyMember" xlink:href="ocln-20230930.xsd#ocln_MckinneyMember"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="us-gaap_OtherCommitmentsDomain" xlink:to="ocln_MckinneyMember" order="0" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_AreaOfLand" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_AreaOfLand"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CommitmentsandContingenciesDetailsLineItems" xlink:to="us-gaap_AreaOfLand" order="1" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="us-gaap_RentalProperties" xlink:href="https://xbrl.fasb.org/us-gaap/2023/elts/us-gaap-2023.xsd#us-gaap_RentalProperties"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CommitmentsandContingenciesDetailsLineItems" xlink:to="us-gaap_RentalProperties" order="2" xbrldt:closed="true"/> |
| | <loc xlink:type="locator" xlink:label="ocln_WarrantyReserveCurrent" xlink:href="ocln-20230930.xsd#ocln_WarrantyReserveCurrent"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/domain-member" xlink:from="ocln_CommitmentsandContingenciesDetailsLineItems" xlink:to="ocln_WarrantyReserveCurrent" order="3" xbrldt:closed="true"/> |
| | </definitionLink> |
| <definitionLink xlink:type="extended" xlink:role="http://www.originclear.com/role/SubsequentEventsDetails"> |
| | <loc xlink:type="locator" xlink:label="ocln_SubsequentEventsDetailsLineItems" xlink:href="ocln-20230930.xsd#ocln_SubsequentEventsDetailsLineItems"/> |
| | <loc xlink:type="locator" xlink:label="ocln_SubsequentEventsDetailsTable" xlink:href="ocln-20230930.xsd#ocln_SubsequentEventsDetailsTable"/> |
| | <definitionArc xlink:type="arc" xlink:arcrole="http://xbrl.org/int/dim/arcrole/all" xlink:from="ocln_SubsequentEventsDetailsLineItems" xlink:to="ocln_SubsequentEventsDetailsTable" order="0" xbrldt:contextElement="segment" xbrldt:closed="true"/> |
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