TREA

Geoffrey Christopherson

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  • Encino, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Self-calibration loudspeaker system
    • Patent number 9,560,460
    • Issue date Jan 31, 2017
    • Harman International Industries, Incorporated
    • Peter Chaikin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Self-calibrating loudspeaker system
    • Patent number 8,577,048
    • Issue date Nov 5, 2013
    • Harman International Industries, Incorporated
    • Peter Chaikin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Grant

    Loudspeaker
    • Patent number D689042
    • Issue date Sep 3, 2013
    • Harman International Industries, Incorporated
    • Myk Wayne Lum
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Loudspeaker housing
    • Patent number D687814
    • Issue date Aug 13, 2013
    • Harman International Industries, Incorporated
    • Myk Wayne Lum
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Handle for a loudspeaker
    • Patent number D682255
    • Issue date May 14, 2013
    • Harman International Industries, Incorporated
    • Myk Wayne Lum
    • D14 - Recording, communication, or information retrieval equipment

Patents Applicationslast 30 patents

  • Information Patent Application

    SELF-CALIBRATION LOUDSPEAKER SYSTEM
    • Publication number 20140161265
    • Publication date Jun 12, 2014
    • HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    • Peter Chaikin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE
  • Information Patent Application

    SELF-CALIBRATING LOUDSPEAKER SYSTEM
    • Publication number 20100272270
    • Publication date Oct 28, 2010
    • HARMAN INTERNATIONAL INDUSTRIES, INCORPORATED
    • Peter Chaikin
    • H04 - ELECTRIC COMMUNICATION TECHNIQUE