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    <element id="CVAT_DerivativeLiabilityMovement" name="DerivativeLiabilityMovement" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_FairValueOfCommonStockIssuedToSettleAccruedPayrollAndPayrollTaxesRelatedParties" name="FairValueOfCommonStockIssuedToSettleAccruedPayrollAndPayrollTaxesRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_FairValueOfCommonStockIssuedToSettleAccruedPayrollAndPayrollTaxesRelatedPartiesShares" name="FairValueOfCommonStockIssuedToSettleAccruedPayrollAndPayrollTaxesRelatedPartiesShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_AdjustmentsToAdditionalPaidInCapitalWarrantIssued1" name="AdjustmentsToAdditionalPaidInCapitalWarrantIssued1" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_IncreaseDecreaseInAccruedPayrollAndPayrollTaxesRelatedParties" name="IncreaseDecreaseInAccruedPayrollAndPayrollTaxesRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ProceedsFromPatentAssignment" name="ProceedsFromPatentAssignment" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ConversionFeatureOfConvertibleNotePayableAccountedAsDerivativeLiability" name="ConversionFeatureOfConvertibleNotePayableAccountedAsDerivativeLiability" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_FairValueOfCommonStockAndWarrantsGrantedToSettleAccruedPayrollAndPayrollTaxesRelatedParties" name="FairValueOfCommonStockAndWarrantsGrantedToSettleAccruedPayrollAndPayrollTaxesRelatedParties" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_DisclosurePromissoryNotesPayableRelatedPartyAbstract" name="DisclosurePromissoryNotesPayableRelatedPartyAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_NotePayableRelatedPartyDisclosureTextBlock" name="NotePayableRelatedPartyDisclosureTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_DisclosureConvertibleNotesPayableAbstract" name="DisclosureConvertibleNotesPayableAbstract" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ConvertibleNotesTextBlock" name="ConvertibleNotesTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ScheduleOfNotePayableRelatedPartyTableTextBlock" name="ScheduleOfNotePayableRelatedPartyTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ScheduleOfWarrantsOutstandingAndExercisableTableTextBlock" name="ScheduleOfWarrantsOutstandingAndExercisableTableTextBlock" nillable="true" xbrli:periodType="duration" type="dtr-types:textBlockItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_DisclosureTable" name="DisclosureTable" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrldt:hypercubeItem" />
    <element id="CVAT_DisclosureLineItemElements" name="DisclosureLineItemElements" abstract="true" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedWeightedAverageRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsGrantedWeightedAverageRemainingContractualTerms" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOtherThanOptionsExercisesInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOtherThanOptionsExercisesInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExercisedWeightedAverageRemainingContractualTerms" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ShareBasedCompensationArrangementsByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" name="ShareBasedCompensationArrangementsByShareBasedPaymentAwardOtherThanOptionsExpiredInPeriodWeightedAverageExercisePrice" nillable="true" xbrli:periodType="duration" type="dtr-types:perShareItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageRemainingContractualTerms" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardEquityInstrumentsOtherThanOptionsExpiredWeightedAverageRemainingContractualTerms" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableNumber" name="ShareBasedCompensationArrangementByShareBasedPaymentAwardOtherThanOptionsExercisableNumber" nillable="true" xbrli:periodType="instant" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_SharebasedCompensationArrangementBySharebasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm1" name="SharebasedCompensationArrangementBySharebasedPaymentAwardWarrantsExercisableWeightedAverageRemainingContractualTerm1" nillable="true" xbrli:periodType="duration" type="xbrli:durationItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_UnitDescription" name="UnitDescription" nillable="true" xbrli:periodType="duration" type="xbrli:stringItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_WarrantsRetiredShares" name="WarrantsRetiredShares" nillable="true" xbrli:periodType="duration" type="xbrli:sharesItemType" substitutionGroup="xbrli:item" />
    <element id="CVAT_OtherOperatingExpenses" name="OtherOperatingExpenses" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" type="xbrli:monetaryItemType" substitutionGroup="xbrli:item" />
</schema>
