TREA

William Wang

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  • Lexington, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone ring detector
    • Patent number 5,544,241
    • Issue date Aug 6, 1996
    • Dibner; Andrew S.
    • Andrew S. Dibner
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Adaptive speakerphone system
    • Patent number 5,333,171
    • Issue date Jul 26, 1994
    • Lifeline Systems, Inc.
    • William Wang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Adaptive speakerphone system
    • Patent number 5,210,784
    • Issue date May 11, 1993
    • Lifeline Systems, Inc.
    • William Wang
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE