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Jinghui Fan

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  • Ningbo, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gas pressure regulator
    • Patent number 11,668,406
    • Issue date Jun 6, 2023
    • Ningbo Wanan Co., Ltd.
    • Feng Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gas pressure regulating device
    • Patent number 11,385,661
    • Issue date Jul 12, 2022
    • Feng Zhang
    • G05 - CONTROLLING REGULATING

Patents Applicationslast 30 patents

  • Information Patent Application

    GAS NEGATIVE PRESSURE VALVE
    • Publication number 20240419196
    • Publication date Dec 19, 2024
    • NINGBO WANAN CO. , LTD.
    • Feng ZHANG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    TIMED GAS CUT-OFF DEVICE AND GAS EQUIPMENT
    • Publication number 20240344629
    • Publication date Oct 17, 2024
    • NINGBO WANAN CO. , LTD.
    • Feng ZHANG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    GAS PRESSURE REGULATOR
    • Publication number 20220316613
    • Publication date Oct 6, 2022
    • NINGBO WANAN CO. , LTD.
    • Feng ZHANG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...