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Gui-Feng Li

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  • Shenzhen, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

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    • Patent number D849113
    • Issue date May 21, 2019
    • Sintai Optical (Shenzhen) Co., Ltd.
    • Gui-Feng Li
    • D16 - Photography and optical equipment
  • Information Patent Grant

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    • Patent number D713870
    • Issue date Sep 23, 2014
    • Sintai Optical (Shenzhen) Co., Ltd.
    • Gui-Feng Li
    • D16 - Photography and optical equipment