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Wengao Liu

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  • Ningbo, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Flexible mask with adjustable strap
    • Patent number 12,161,177
    • Issue date Dec 10, 2024
    • Ningbo Troika Science & Technology Company Limited
    • Wengao Liu
    • A41 - WEARING APPAREL
  • Information Patent Grant

    Glass wiper
    • Patent number 9,402,514
    • Issue date Aug 2, 2016
    • Ningbo Beari Plastic Products & Electric Appliance Co., Ltd.
    • Wengao Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...

Patents Applicationslast 30 patents

  • Information Patent Application

    FLEXIBLE MASK WITH ADJUSTABLE STRAP
    • Publication number 20210401085
    • Publication date Dec 30, 2021
    • Ningbo Troika Science & Technology Company Limited
    • Wengao LIU
    • A41 - WEARING APPAREL
  • Information Patent Application

    GLASS WIPER
    • Publication number 20140366296
    • Publication date Dec 18, 2014
    • Ningbo Beari Plastic Products & Electric Applicanc Co., Ltd
    • Wengao Liu
    • A47 - FURNITURE DOMESTIC ARTICLES OR APPLIANCES COFFEE MILLS SPICE MILLS SUCT...