AMERICAN TECHNOLOGY CORPORATION

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Patent Activity in the Last 10 Years

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
D409614 Radio headsetJul 16, 98May 11, 99[1401]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2008/0239,876 High intensity vehicle proximity acousticsAbandonedSep 18, 07Oct 02, 08[H04B]
2007/0127,767 Single-ended planar-magnetic speakerAbandonedNov 28, 06Jun 07, 07[H04R]
2007/0003,076 Bandpass woofer enclosure with multiple acoustic filtersAbandonedSep 01, 06Jan 04, 07[H03G]
2006/0280,315 System and method for delivering audio-visual content along a customer waiting lineAbandonedJun 09, 04Dec 14, 06[H04B]
2006/0233,404 Horn array emitterAbandonedAug 02, 05Oct 19, 06[H04R]
7103193 Bandpass woofer enclosure with multiple acoustic fibersExpiredSep 14, 01Sep 05, 06[H04R]
2006/0050,923 Planar-magnetic speakers with secondary magnetic structureAbandonedAug 23, 05Mar 09, 06[H04R]
2005/0286,346 High intensity directional electroacoustic sound generating system for communications targetingAbandonedMay 16, 05Dec 29, 05[G08B, B06B]
2005/0244,016 Parametric loudspeaker with electro-acoustical diaphragm transducerAbandonedMay 02, 05Nov 03, 05[H04B]
2005/0226,438 Parametric ring emitterAbandonedSep 17, 04Oct 13, 05[H04B]
2005/0195,985 Focused parametric arrayAbandonedFeb 24, 05Sep 08, 05[H04B, H03G]
2005/0185,800 Parametric sound system with lower sidebandAbandonedJan 20, 05Aug 25, 05[H04B]
2005/0089,176 Parametric loudspeaker with improved phase characteristicsAbandonedNov 08, 04Apr 28, 05[H04B]
2005/0084,122 Method for constructing a parametric transducer having an emitter filmAbandonedAug 20, 04Apr 21, 05[H04B, H04R]
2004/0052,387 Piezoelectric film emitter configurationAbandonedJul 02, 03Mar 18, 04[H04R]
2003/0215,103 Parametric virtual speaker and surround-sound systemAbandonedJun 09, 03Nov 20, 03[H04B]
2003/0118,198 Biaxial parametric speakerAbandonedNov 12, 02Jun 26, 03[H04B]
2003/0091,203 Dynamic carrier system for parametric arraysAbandonedAug 30, 02May 15, 03[H04R]
6535612 Electroacoustic transducer with diaphragm securing structure and methodExpiredAug 16, 99Mar 18, 03[H04R]
2002/0076,069 Sonic emitter with foam statorAbandonedOct 16, 01Jun 20, 02[H04R]

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