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Noise cancellation apparatus
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Patent number 6,061,456
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Issue date May 9, 2000
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Andrea Electronics Corporation
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Douglas Andrea
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Headset
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Patent number D409621
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Issue date May 11, 1999
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Andrea Electronics Corporation
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Douglas Andrea
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D14 - Recording, communication, or information retrieval equipment
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Headset design
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Patent number D404734
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Issue date Jan 26, 1999
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Andrea Electronics Corporation
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Douglas Andrea
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D14 - Recording, communication, or information retrieval equipment
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Noise cancellation apparatus
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Patent number 5,825,897
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Issue date Oct 20, 1998
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Andrea Electronics Corporation
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Douglas Andrea
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Noise cancellation apparatus
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Patent number 5,732,143
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Issue date Mar 24, 1998
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Andrea Electronics Corp.
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Douglas Andrea
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G10 - MUSICAL INSTRUMENTS ACOUSTICS
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Noise cancellation apparatus
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Patent number 5,673,325
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Issue date Sep 30, 1997
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Andrea Electronics Corporation
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Douglas Andrea
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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Tethered media/communication handset
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Patent number D381980
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Issue date Aug 5, 1997
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Andrea Electronics Corporation
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Douglas Andrea
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D14 - Recording, communication, or information retrieval equipment
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Tethered media/communication handset
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Patent number D377024
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Issue date Dec 31, 1996
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Andrea Electronics Corportion
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Douglas Andrea
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D14 - Recording, communication, or information retrieval equipment
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Untethered communications/media handset
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Patent number D377023
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Issue date Dec 31, 1996
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Andrea Electronics Corportion
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Douglas Andrea
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D14 - Recording, communication, or information retrieval equipment
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Boom microphone headset
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Patent number D371133
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Issue date Jun 25, 1996
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Andrea Electronics Corporation
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Douglas Andrea
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D14 - Recording, communication, or information retrieval equipment
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Noise cancellation apparatus
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Patent number 5,381,473
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Issue date Jan 10, 1995
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Andrea Electronics Corporation
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Douglas Andrea
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H04 - ELECTRIC COMMUNICATION TECHNIQUE
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