TREA

Wai Lam William Yim

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  • Hong Kong, HK
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Patents Grantslast 30 patents

  • Information Patent Grant

    Waterproof camera case
    • Patent number D647554
    • Issue date Oct 25, 2011
    • Sanwa Technologies Limited
    • Wai Lam William Yim
    • D16 - Photography and optical equipment
  • Information Patent Grant

    Configurable waterproof camera case
    • Patent number D621432
    • Issue date Aug 10, 2010
    • Sanwa Technologies Limited
    • Wai Lam William Yim
    • D16 - Photography and optical equipment