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Proc-Type: 2001,MIC-CLEAR
Originator-Name: webmaster@www.sec.gov
Originator-Key-Asymmetric:
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 TWSM7vrzLADbmYQaionwg5sDW3P6oaM5D3tdezXMm7z1T+B+twIDAQAB
MIC-Info: RSA-MD5,RSA,
 PeRfKWBIJjobouy7pWdo9kvzo52qGc/jAoEKOi/NZCmxM5sL2JSgI81NQFRCvihg
 6W92R2tXG1xcKZpxO5dqpg==

<SEC-DOCUMENT>0001181431-07-044700.txt : 20070705
<SEC-HEADER>0001181431-07-044700.hdr.sgml : 20070704
<ACCEPTANCE-DATETIME>20070705202240
ACCESSION NUMBER:		0001181431-07-044700
CONFORMED SUBMISSION TYPE:	3
PUBLIC DOCUMENT COUNT:		1
CONFORMED PERIOD OF REPORT:	20070625
FILED AS OF DATE:		20070705
DATE AS OF CHANGE:		20070705

ISSUER:		

	COMPANY DATA:	
		COMPANY CONFORMED NAME:			AMERICAN TECHNOLOGY CORP /DE/
		CENTRAL INDEX KEY:			0000924383
		STANDARD INDUSTRIAL CLASSIFICATION:	HOUSEHOLD AUDIO & VIDEO EQUIPMENT [3651]
		IRS NUMBER:				870361799
		STATE OF INCORPORATION:			DE
		FISCAL YEAR END:			0930

	BUSINESS ADDRESS:	
		STREET 1:		13114 EVENING CREEK DRIVE SOUTH
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92128
		BUSINESS PHONE:		6196792114

	MAIL ADDRESS:	
		STREET 1:		13114 EVENING CREEK DRIVE SOUTH
		CITY:			SAN DIEGO
		STATE:			CA
		ZIP:			92128

REPORTING-OWNER:	

	OWNER DATA:	
		COMPANY CONFORMED NAME:			MCDERMOTT KATHERINE H
		CENTRAL INDEX KEY:			0001203320

	FILING VALUES:
		FORM TYPE:		3
		SEC ACT:		1934 Act
		SEC FILE NUMBER:	000-24248
		FILM NUMBER:		07966113

	BUSINESS ADDRESS:	
		STREET 1:		15353 BARRANCA PARKWAY
		CITY:			IRVINE
		STATE:			CA
		ZIP:			92618
</SEC-HEADER>
<DOCUMENT>
<TYPE>3
<SEQUENCE>1
<FILENAME>rrd165314.xml
<DESCRIPTION>MCDERMOTT FORM 3 07-07
<TEXT>
<XML>
<?xml version="1.0"?>
<ownershipDocument>

    <schemaVersion>X0202</schemaVersion>

    <documentType>3</documentType>

    <periodOfReport>2007-06-25</periodOfReport>

    <noSecuritiesOwned>1</noSecuritiesOwned>

    <issuer>
        <issuerCik>0000924383</issuerCik>
        <issuerName>AMERICAN TECHNOLOGY CORP /DE/</issuerName>
        <issuerTradingSymbol>ATCO</issuerTradingSymbol>
    </issuer>

    <reportingOwner>
        <reportingOwnerId>
            <rptOwnerCik>0001203320</rptOwnerCik>
            <rptOwnerName>MCDERMOTT KATHERINE H</rptOwnerName>
        </reportingOwnerId>
        <reportingOwnerAddress>
            <rptOwnerStreet1>15378 AVENUE OF SCIENCE, SUITE 100</rptOwnerStreet1>
            <rptOwnerStreet2></rptOwnerStreet2>
            <rptOwnerCity>SAN DIEGO</rptOwnerCity>
            <rptOwnerState>CA</rptOwnerState>
            <rptOwnerZipCode>92128</rptOwnerZipCode>
            <rptOwnerStateDescription></rptOwnerStateDescription>
        </reportingOwnerAddress>
        <reportingOwnerRelationship>
            <isDirector>0</isDirector>
            <isOfficer>1</isOfficer>
            <isTenPercentOwner>0</isTenPercentOwner>
            <isOther>0</isOther>
            <officerTitle>Chief Accounting Officer</officerTitle>
        </reportingOwnerRelationship>
    </reportingOwner>

    <ownerSignature>
        <signatureName>Katherine H McDermott</signatureName>
        <signatureDate>2007-07-05</signatureDate>
    </ownerSignature>
</ownershipDocument>
</XML>
</TEXT>
</DOCUMENT>
</SEC-DOCUMENT>
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