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Joseph Chan

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  • Hong Kong, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Telephone base
    • Patent number D472538
    • Issue date Apr 1, 2003
    • VTech Communications, Ltd.
    • Joseph Chan
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Telephone handset and base
    • Patent number D469075
    • Issue date Jan 21, 2003
    • VTech Communications, Ltd.
    • Joseph Chan
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Telephone handset
    • Patent number D460059
    • Issue date Jul 9, 2002
    • VTech Communications, Ltd.
    • Joseph Chan
    • D14 - Recording, communication, or information retrieval equipment
  • Information Patent Grant

    Telephone handset
    • Patent number D408405
    • Issue date Apr 20, 1999
    • Vtech Communications, Ltd.
    • Joseph Chan
    • D14 - Recording, communication, or information retrieval equipment