-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
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MIC-Info: RSA-MD5,RSA,
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<SEC-DOCUMENT>0001209191-08-010087.txt : 20080214
<SEC-HEADER>0001209191-08-010087.hdr.sgml : 20080214
<ACCEPTANCE-DATETIME>20080214073108
ACCESSION NUMBER:		0001209191-08-010087
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20080128
FILED AS OF DATE:		20080214
DATE AS OF CHANGE:		20080214

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			NOCOPI TECHNOLOGIES INC/MD/
		CENTRAL INDEX KEY:			0000888981
		STANDARD INDUSTRIAL CLASSIFICATION:	GAMES, TOYS & CHILDREN'S VEHICLES (NO DOLLS & BICYCLES) [3944]
		IRS NUMBER:				870406496
		STATE OF INCORPORATION:			MD
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		537 APPLE ST
		STREET 2:		STE 100
		CITY:			WEST CONSHOHOCKEN
		STATE:			PA
		ZIP:			19428-2903
		BUSINESS PHONE:		6108349600

	MAIL ADDRESS:	
		STREET 1:		537 APPLE ST
		STREET 2:		230 SUGARTOWN RD STE 100
		CITY:			WEST CONSHOHOCKEN
		STATE:			PA
		ZIP:			19428-2903

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			FEINSTEIN MICHAEL
		CENTRAL INDEX KEY:			0000939005

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-20333
		FILM NUMBER:		08608323

	BUSINESS ADDRESS:	
		STREET 1:		801 SPRUCE STREET 3D FLOOR
		CITY:			PHILADELPHIA
		STATE:			PA
		ZIP:			19107
		BUSINESS PHONE:		2156275272
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>4</documentType>

    <periodOfReport>2008-01-28</periodOfReport>

    <notSubjectToSection16>0</notSubjectToSection16>

    <issuer>
        <issuerCik>0000888981</issuerCik>
        <issuerName>NOCOPI TECHNOLOGIES INC/MD/</issuerName>
        <issuerTradingSymbol>NNUP</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0000939005</rptOwnerCik>
            <rptOwnerName>FEINSTEIN MICHAEL</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>C/O NOCOPI TECHNOLOGIES INC.,</rptOwnerStreet1>
            <rptOwnerStreet2>9C PORTLAND ROAD</rptOwnerStreet2>
            <rptOwnerCity>WEST CONSHOHOCKEN</rptOwnerCity>
            <rptOwnerState>PA</rptOwnerState>
            <rptOwnerZipCode>19428</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>1</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chairman of the Board</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <nonDerivativeTable>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, $.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2008-01-28</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2008-01-28</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.47</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2831281</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
        <nonDerivativeTransaction>
            <securityTitle>
                <value>Common stock, $.01 par value</value>
            </securityTitle>
            <transactionDate>
                <value>2008-01-28</value>
            </transactionDate>
            <deemedExecutionDate>
                <value>2008-01-28</value>
            </deemedExecutionDate>
            <transactionCoding>
                <transactionFormType>4</transactionFormType>
                <transactionCode>P</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
            </transactionCoding>
            <transactionTimeliness>
                <value></value>
            </transactionTimeliness>
            <transactionAmounts>
                <transactionShares>
                    <value>5000</value>
                </transactionShares>
                <transactionPricePerShare>
                    <value>0.47</value>
                </transactionPricePerShare>
                <transactionAcquiredDisposedCode>
                    <value>A</value>
                </transactionAcquiredDisposedCode>
            </transactionAmounts>
            <postTransactionAmounts>
                <sharesOwnedFollowingTransaction>
                    <value>2836281</value>
                </sharesOwnedFollowingTransaction>
            </postTransactionAmounts>
            <ownershipNature>
                <directOrIndirectOwnership>
                    <value>D</value>
                </directOrIndirectOwnership>
            </ownershipNature>
        </nonDerivativeTransaction>
    </nonDerivativeTable>

    <footnotes></footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>Michael A. Feinstein</signatureName>
        <signatureDate>2008-02-14</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----