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Total properties:
16
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Patent #:
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|
Issue Dt:
|
04/22/1997
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Application #:
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08062595
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Filing Dt:
|
05/17/1993
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Title:
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TELEPHONE HEADSET INTERFACE CIRCUIT
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Patent #:
|
|
Issue Dt:
|
08/06/1996
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Application #:
|
08288941
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Filing Dt:
|
08/10/1994
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Title:
|
TELEPHONE HEADSET INTERFACE CIRCUIT
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|
|
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Patent #:
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|
Issue Dt:
|
07/24/2001
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Application #:
|
08967930
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Filing Dt:
|
11/12/1997
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Title:
|
BATTERY CIRCUIT FOR ELECTRET MICROPHONE WITH UNIFORM PERFORMANCE
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|
|
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Patent #:
|
|
Issue Dt:
|
11/02/1999
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Application #:
|
08968307
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Filing Dt:
|
11/12/1997
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Title:
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CIRCUITRY FOR IMPROVING PERFORMANCE OF ELECTRET MICROPHONE
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|
|
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Patent #:
|
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Issue Dt:
|
10/03/2000
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Application #:
|
08995771
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Filing Dt:
|
12/22/1997
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|
Title:
|
SELF CONFIGURING TELEPHONE HEADSET AMPLIFIER
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|
|
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Patent #:
|
|
Issue Dt:
|
01/07/2003
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Application #:
|
09115980
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Filing Dt:
|
07/15/1998
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Title:
|
AMPLIFIER CIRCUIT FOR ELECTRET MICROPHONE WITH ENHANCED PERFORMANCE
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|
|
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Patent #:
|
|
Issue Dt:
|
10/24/2000
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Application #:
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09130745
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Filing Dt:
|
08/07/1998
|
|
Title:
|
COMPUTER TELEPHONY HEADSET AMPLIFIER
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|
|
|
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Patent #:
|
|
Issue Dt:
|
01/20/2004
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Application #:
|
09289366
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Filing Dt:
|
04/09/1999
|
|
Title:
|
MICROPHONE CIRCUIT WITH MUTE AND KEEP ALIVE FUNCTION
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|
|
|
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Patent #:
|
|
Issue Dt:
|
06/17/2003
|
Application #:
|
09335789
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Filing Dt:
|
06/18/1999
|
|
Title:
|
AMPLIFIER CIRCUIT FOR ELECTRET MICROPHONE WITH ENHANCED PERFORMANCE
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
05/04/2004
|
Application #:
|
09634073
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Filing Dt:
|
08/08/2000
|
|
Title:
|
APPARATUS FOR CORDLESS COMPUTER TELEPHONY
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
03/06/2007
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Application #:
|
10793245
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Filing Dt:
|
03/04/2004
|
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Title:
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APPARATUS FOR CORD-FREE HANDS-FREE TELEPHONY
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|
|
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Patent #:
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|
Issue Dt:
|
08/29/1995
|
Application #:
|
29016220
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Filing Dt:
|
12/10/1993
|
|
Title:
|
AUDIO RECORDER/PLAYER
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|
|
|
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Patent #:
|
|
Issue Dt:
|
07/09/1996
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Application #:
|
29040831
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Filing Dt:
|
06/28/1995
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|
Title:
|
COMBINED PORTABLE AUDIO MESSAGE RECORDING AND PLAYBACK STATION
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|
|
|
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Patent #:
|
|
Issue Dt:
|
04/07/1998
|
Application #:
|
29055081
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Filing Dt:
|
05/29/1996
|
|
Title:
|
PORTABLE INFORMATION STORING AND RETRIEVING DEVICE
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
03/30/1999
|
Application #:
|
29075014
|
Filing Dt:
|
08/11/1997
|
|
Title:
|
PORTABLE VOICE RECORDER
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|
|
|
|
Patent #:
|
|
Issue Dt:
|
02/23/1999
|
Application #:
|
29075015
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Filing Dt:
|
08/11/1997
|
|
Title:
|
PORTABLE VOICE RECORDER
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|
