TREA

Yongbin XUAN

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  • Shaoxing, CN
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Patents Applicationslast 30 patents

  • Information Patent Application

    BALL VALVE
    • Publication number 20240384802
    • Publication date Nov 21, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Zhouyang SHOU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    BALL VALVE
    • Publication number 20240280187
    • Publication date Aug 22, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Zhouyang SHOU
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    FOUR-WAY VALVE AND AIR CONDITIONING SYSTEM PROVIDED WITH SAME
    • Publication number 20240117886
    • Publication date Apr 11, 2024
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Zhongbo FENG
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    CHECK VALVE AND AIR CONDITIONER HAVING SAME
    • Publication number 20230341157
    • Publication date Oct 26, 2023
    • ZHEJIANG DUNAN ARTIFICIAL ENVIRONMENT CO., LTD.
    • Huahai JIN
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...