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Haibo LIU

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  • Shaoxing, Zhejiang, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Valve body connection structure and valve assembly with valve body...
    • Patent number 11,946,558
    • Issue date Apr 2, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Zhiguo Song
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pilot valve
    • Patent number 11,946,562
    • Issue date Apr 2, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Jianjun Chen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Pilot Valve and Four-way Reversing Valve
    • Publication number 20240318732
    • Publication date Sep 26, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Jianjun CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Pilot Valve and Four-way Reversing Valve
    • Publication number 20240151312
    • Publication date May 9, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Jianjun CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Reversing Valve
    • Publication number 20240125403
    • Publication date Apr 18, 2024
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Yujian DUAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    PILOT VALVE
    • Publication number 20220356960
    • Publication date Nov 10, 2022
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Jianjun CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Valve Body Connection Structure and Valve Assembly with Valve Body...
    • Publication number 20220275876
    • Publication date Sep 1, 2022
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Zhiguo SONG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Pilot Valve and Four-way Reversing Valve
    • Publication number 20220252164
    • Publication date Aug 11, 2022
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Jianjun CHEN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...