-----BEGIN PRIVACY-ENHANCED MESSAGE-----
Proc-Type: 2001,MIC-CLEAR
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<SEC-DOCUMENT>0001209191-10-062887.txt : 20101230
<SEC-HEADER>0001209191-10-062887.hdr.sgml : 20101230
<ACCEPTANCE-DATETIME>20101230110427
ACCESSION NUMBER:		0001209191-10-062887
CONFORMED SUBMISSION TYPE:	4
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20101228
FILED AS OF DATE:		20101230
DATE AS OF CHANGE:		20101230

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			GENTEX CORP
		CENTRAL INDEX KEY:			0000355811
		STANDARD INDUSTRIAL CLASSIFICATION:	MOTOR VEHICLE PARTS & ACCESSORIES [3714]
		IRS NUMBER:				382030505
		STATE OF INCORPORATION:			MI
		FISCAL YEAR END:			1231

	BUSINESS ADDRESS:	
		STREET 1:		600 N CENTENNIAL ST
		CITY:			ZEELAND
		STATE:			MI
		ZIP:			49464
		BUSINESS PHONE:		6167721800

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			Arnold John W
		CENTRAL INDEX KEY:			0001499281

	FILING VALUES:
		FORM TYPE:		4
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-10235
		FILM NUMBER:		101279866

	MAIL ADDRESS:	
		STREET 1:		834 HAZELWOOD DRIVE
		CITY:			HOLLAND
		STATE:			MI
		ZIP:			49424
</SEC-HEADER>
<DOCUMENT>
<TYPE>4
<SEQUENCE>1
<FILENAME>doc4.xml
<DESCRIPTION>FORM 4 SUBMISSION
<TEXT>
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    <periodOfReport>2010-12-28</periodOfReport>

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        <issuerName>GENTEX CORP</issuerName>
        <issuerTradingSymbol>GNTX</issuerTradingSymbol>
    </issuer>

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            <rptOwnerName>Arnold John W</rptOwnerName>
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        <reportingOwnerAddress>
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            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>HOLLAND</rptOwnerCity>
            <rptOwnerState>MI</rptOwnerState>
            <rptOwnerZipCode>49424</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
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            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>VP of Operations Auto Products</officerTitle>
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    <derivativeTable>
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            </securityTitle>
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            <transactionTimeliness>
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            <transactionAmounts>
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                <transactionPricePerShare>
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                    <footnoteId id="F2"/>
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                <transactionAcquiredDisposedCode>
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            <expirationDate>
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            <underlyingSecurity>
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                <transactionPricePerShare>
                    <value>8.30</value>
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                <transactionAcquiredDisposedCode>
                    <value>D</value>
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                <value>2010-12-24</value>
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                <value>2015-12-24</value>
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                <value>2010-12-29</value>
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                <transactionFormType>4</transactionFormType>
                <transactionCode>M</transactionCode>
                <equitySwapInvolved>0</equitySwapInvolved>
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                <value></value>
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                <transactionShares>
                    <value>2928</value>
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                    <value>18.03</value>
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                    <value>D</value>
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            <exerciseDate>
                <value>2010-12-29</value>
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            <expirationDate>
                <value>2016-12-29</value>
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    <footnotes>
        <footnote id="F1">These shares become exercisable as to 20% one year after date of grant and an additional 20% at each ensuing anniversary date.</footnote>
        <footnote id="F2">Options granted under the Gentex Corporation Employee Stock Option Plan, which is a Rule 16B-3 Plan.</footnote>
    </footnotes>

    <remarks></remarks>

    <ownerSignature>
        <signatureName>/s/ John W. Arnold</signatureName>
        <signatureDate>2010-12-30</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
-----END PRIVACY-ENHANCED MESSAGE-----
