<?xml version="1.0"?>
<ownershipDocument>
    <schemaVersion>X0201</schemaVersion>

    <documentType>4</documentType><periodOfReport>2003-10-01</periodOfReport>
    <issuer>
        <issuerCik>0000720896</issuerCik>
        <issuerName>MEMRY CORP</issuerName>
        <issuerTradingSymbol>MRY</issuerTradingSymbol></issuer><reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001098536</rptOwnerCik>
            <rptOwnerName>KRUSEN W ANDREW JR</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O DFG MANAGEMENT, INC.</rptOwnerStreet1>
            <rptOwnerStreet2>712 SOUTH OREGON AVE, STE 200</rptOwnerStreet2>
            <rptOwnerCity>TAMPA</rptOwnerCity>
            <rptOwnerState>FL</rptOwnerState>
            <rptOwnerZipCode>33606</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
            <reportingOwnerRelationship>
<isDirector>1</isDirector><isOfficer>0</isOfficer><isTenPercentOwner>0</isTenPercentOwner><isOther>0</isOther></reportingOwnerRelationship></reportingOwner><nonDerivativeTable><nonDerivativeTransaction><securityTitle><value>Common Stock</value></securityTitle><transactionDate><value>2003-10-01</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>2255</value></transactionShares><transactionPricePerShare><value>1.33</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><postTransactionAmounts><sharesOwnedFollowingTransaction><value>532976</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>I</value></directOrIndirectOwnership><natureOfOwnership><value>*</value><footnoteId id="F1"/></natureOfOwnership></ownershipNature></nonDerivativeTransaction></nonDerivativeTable><derivativeTable><derivativeTransaction><securityTitle><value>Stock Option (right to buy)</value></securityTitle><conversionOrExercisePrice><value>1.33</value></conversionOrExercisePrice><transactionDate><value>2003-10-01</value></transactionDate><transactionCoding><transactionFormType>4</transactionFormType><transactionCode>A</transactionCode><equitySwapInvolved>0</equitySwapInvolved></transactionCoding><transactionAmounts><transactionShares><value>3383</value></transactionShares><transactionPricePerShare><value>1.33</value></transactionPricePerShare><transactionAcquiredDisposedCode><value>A</value></transactionAcquiredDisposedCode></transactionAmounts><exerciseDate><value>1988-08-08</value><footnoteId id="F2"/></exerciseDate><expirationDate><value>2013-01-01</value></expirationDate><underlyingSecurity><underlyingSecurityTitle><value>Common Stock</value></underlyingSecurityTitle><underlyingSecurityShares><value>3383</value></underlyingSecurityShares></underlyingSecurity><postTransactionAmounts><sharesOwnedFollowingTransaction><value>3383</value></sharesOwnedFollowingTransaction></postTransactionAmounts><ownershipNature><directOrIndirectOwnership><value>D</value></directOrIndirectOwnership><natureOfOwnership><value/></natureOfOwnership></ownershipNature></derivativeTransaction></derivativeTable><footnotes><footnote id="F1">W. Andrew Krusen, Jr. is the chairman of the Executive Committee of Dominion Financial Group International LLC (&quot;DFGI LLC&quot;).  In addition, Mr. Krusen indirectly beneficially owns certain outstanding securities of DFGI LLC through WIT Ventures, LTD (&quot;WIT&quot;) and through DFG Management, Inc., which has a carried interest in DFGI LLC and of which Mr. Krusen is President and 100% economic owner.  JAWIT Corporation of which Mr. Krusen is President and an approximately 50% shareholder, is the managing general partner of WIT.  Dominion Financial Group, Inc., (&quot;DFG Inc.&quot;), of which Mr. Krusen is President and an approximately 50% shareholder, is an investor of WIT.  Mr. Krusen is a General Partner of KVC.  DFG, Inc. is the managing general partner of DCM.</footnote><footnote id="F2">The option is exercisable in three equal installments beginning on the first anniversary of the grant date specified.</footnote></footnotes><remarks/><ownerSignature><signatureName>W. Andrew Krusen, Jr.</signatureName><signatureDate>2003-10-01</signatureDate></ownerSignature></ownershipDocument>

