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Total properties:
14
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Patent #:
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Issue Dt:
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03/13/1990
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Application #:
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07263196
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Filing Dt:
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10/27/1988
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Title:
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ELECTROACOUSTIC TRANSDUCER OF THE SO-CALLED "ELECTRET" TYPE, AND A METHOD OF MAKING SUCH A TRANSDUCER
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Patent #:
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Issue Dt:
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03/27/1990
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Application #:
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07385150
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Filing Dt:
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07/26/1989
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Title:
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ELECTROACOUSTIC TRANSDUCER OF THE SO-CALLED "ELECTRET" TYPE, AND A METHOD OF MAKING SUCH A TRANSDUCER
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Patent #:
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Issue Dt:
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10/19/1993
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Application #:
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07945918
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Filing Dt:
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09/17/1992
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Title:
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ELECTROACOUSTIC TRANSDUCER OF THE ELECTRET TYPE
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Patent #:
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Issue Dt:
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09/15/1998
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Application #:
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08685861
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Filing Dt:
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07/24/1996
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Title:
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TRANSDUCER
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Patent #:
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Issue Dt:
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05/26/1998
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Application #:
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08685862
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Filing Dt:
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07/24/1996
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Title:
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TRANSDUCER
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Patent #:
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Issue Dt:
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07/04/2000
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Application #:
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08832136
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Filing Dt:
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04/03/1997
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Title:
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INTEGRATED MICROPHONE/AMPLIFIER UNIT, AND AMPLIFIER MODULE THEREFOR
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Patent #:
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Issue Dt:
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01/02/2001
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Application #:
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08839764
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Filing Dt:
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04/15/1997
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Title:
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ELECTROACOUSTIC TRANSDUCER
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Patent #:
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Issue Dt:
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06/13/2000
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Application #:
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08980835
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Filing Dt:
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12/01/1997
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Title:
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ELECTROUCOUSTIC TRANSDUCER WITH IMPROVED SHOCK RESISTANCE
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Patent #:
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Issue Dt:
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06/20/2000
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Application #:
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08994745
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Filing Dt:
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12/19/1997
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Title:
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ELECTROACOUSTIC TRANSDUCER WITH IMPROVED DIAPHRAGM ATTACHMENT
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Patent #:
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Issue Dt:
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05/25/2004
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Application #:
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09213468
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Filing Dt:
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12/17/1998
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Title:
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DIRECTIONAL HEARING DEVICE
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Patent #:
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Issue Dt:
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07/05/2005
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Application #:
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09346220
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Filing Dt:
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07/01/1999
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Title:
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SYSTEM CONSISTING OF A MICROPHONE AND A PREAMPLIFIER
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Patent #:
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Issue Dt:
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09/27/2005
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Application #:
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09860010
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Filing Dt:
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05/17/2001
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Publication #:
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Pub Dt:
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11/22/2001
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Title:
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SYSTEM CONSISTING OF A MICROPHONE AND AN AMPLIFIER
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Patent #:
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Issue Dt:
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09/19/2006
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Application #:
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09958510
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Filing Dt:
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01/23/2002
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Title:
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ELECTROACOUSTIC TRANSDUCER WITH A DIAPHRAGM, AND METHOD FOR FIXING A DIAPHRAGM IN SUCH TRANSDUCER
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Patent #:
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Issue Dt:
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11/06/2007
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Application #:
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09958867
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Filing Dt:
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01/23/2002
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Title:
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MICROPHONE FOR A HEARING AID
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