TREA

John Ledingham

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  • Scotts Valley, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Communications headset
    • Patent number RE45056
    • Issue date Aug 5, 2014
    • Plantronics, Inc.
    • Joseph Yang
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Communications headset
    • Patent number RE44672
    • Issue date Dec 31, 2013
    • Plantronics, Inc.
    • Joseph Yang
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Communications headset
    • Patent number D612840
    • Issue date Mar 30, 2010
    • Plantronics, Inc.
    • Joseph Yang
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Microphone boom for a communications headset
    • Patent number D612835
    • Issue date Mar 30, 2010
    • Plantronics, Inc.
    • Joseph Yang
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Communications headset
    • Patent number D612834
    • Issue date Mar 30, 2010
    • Plantronics, Inc.
    • Joseph Yang
    • D14 - Recording, communication, or information retrieval equipment