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Li Zefeng

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  • Jiansu, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Button structure
    • Patent number 11,909,390
    • Issue date Feb 20, 2024
    • PERATECH HOLDCO LIMITED
    • You Dawei
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    BUTTON STRUCTURE
    • Publication number 20230079619
    • Publication date Mar 16, 2023
    • Peratech Holdco Limited
    • You DAWEI
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Pressure Sensing Device
    • Publication number 20230012518
    • Publication date Jan 19, 2023
    • Peratech Holdco Limited
    • XU FENG
    • G01 - MEASURING TESTING
  • Information Patent Application

    SWITCH MECHANISM
    • Publication number 20230005679
    • Publication date Jan 5, 2023
    • Peratech Holdco Limited
    • Zhang Chuanyang
    • H01 - BASIC ELECTRIC ELEMENTS