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Qiubo HE

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  • Shaoxing, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Electronic expansion valve
    • Patent number 12,140,231
    • Issue date Nov 12, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Shaojun Zhan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Electronic expansion valve
    • Patent number 11,953,244
    • Issue date Apr 9, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Shaojun Zhan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Air conditioning system and electronic expansion valve thereof
    • Patent number 11,473,820
    • Issue date Oct 18, 2022
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Shaojun Zhan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Electronic Expansion Valve
    • Publication number 20240410495
    • Publication date Dec 12, 2024
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Yuchen HE
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    ELECTRONIC EXPANSION VALVE AND AIR CONDITIONING SYSTEM USING THE SAME
    • Publication number 20220316777
    • Publication date Oct 6, 2022
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Shaojun ZHAN
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    Electronic Expansion Valve
    • Publication number 20220228664
    • Publication date Jul 21, 2022
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Shaojun ZHAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Electronic Expansion Valve
    • Publication number 20220205694
    • Publication date Jun 30, 2022
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Shaojun ZHAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Magnetic Valve
    • Publication number 20220186839
    • Publication date Jun 16, 2022
    • Zhejiang DunAn Artificial Environment Co., Ltd
    • Shaojun ZHAN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    AIR CONDITIONING SYSTEM AND ELECTRONIC EXPANSION VALVE THEREOF
    • Publication number 20210190399
    • Publication date Jun 24, 2021
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Shaojun ZHAN
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...