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Chung-Han Yu

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  • City of Industry, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Optical lens
    • Patent number 9,829,177
    • Issue date Nov 28, 2017
    • GRANDLITE INTERNATIONAL CORP
    • Chung-Han Yu
    • G02 - OPTICS
  • Information Patent Grant

    Optical lens
    • Patent number 9,752,751
    • Issue date Sep 5, 2017
    • GRANDLITE INTERNATIONAL CORP
    • Chung-Han Yu
    • G02 - OPTICS

Patents Applicationslast 30 patents

  • Information Patent Application

    OPTICAL LENS
    • Publication number 20170074483
    • Publication date Mar 16, 2017
    • GRANDLITE INTERNATIONAL CORP
    • Chung-Han Yu
    • F21 - LIGHTING
  • Information Patent Application

    OPTICAL LENS
    • Publication number 20170059123
    • Publication date Mar 2, 2017
    • GRANDLITE INTERNATIONAL CORP
    • Chung-Han Yu
    • F21 - LIGHTING