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Wenhao Han

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  • Jiangsu Province 224500, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve with self-locking function
    • Patent number 10,718,446
    • Issue date Jul 21, 2020
    • Jiangsu Suyan Valve Machinery Co., Ltd.
    • Zhenghai Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Quantitative water adjusting valve
    • Publication number 20190383400
    • Publication date Dec 19, 2019
    • Jiangsu Suyan Valve Machinery Co.,Ltd
    • Zhenghai Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Valve with self-locking function
    • Publication number 20190383420
    • Publication date Dec 19, 2019
    • Jiangsu Suyan Valve Machinery Co.,Ltd
    • Zhenghai Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Anti-leakage self-sealing valve
    • Publication number 20190383419
    • Publication date Dec 19, 2019
    • Jiangsu Suyan Valve Machinery Co.,Ltd
    • Zhenghai Han
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...