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Changqing Liu

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  • Zhejiang, CN
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Patents Grantslast 30 patents

  • Information Patent Grant

    Thermal expansion valve with one-way control function
    • Patent number 9,631,850
    • Issue date Apr 25, 2017
    • Zhejiang Sanhua Co., Ltd.
    • Changqing Liu
    • G05 - CONTROLLING REGULATING
  • Information Patent Grant

    Thermal expansion valve
    • Patent number 9,587,864
    • Issue date Mar 7, 2017
    • Zhejiang Sanhua Co., Ltd.
    • Changqing Liu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Grant

    Expansion valve
    • Patent number 9,109,822
    • Issue date Aug 18, 2015
    • Zhejiang Sanhua Co., Ltd.
    • Changqing Liu
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    THERMAL EXPANSION VALVE WITH ONE-WAY CONTROL FUNCTION
    • Publication number 20150101685
    • Publication date Apr 16, 2015
    • Changqing Liu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    THERMAL EXPANSION VALVE
    • Publication number 20140041405
    • Publication date Feb 13, 2014
    • Zhejiang Sanhua Co., Ltd.
    • Changqing Liu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    REFRIGERATING SYSTEM AND THERMOSTATIC EXPANSION VALVE THEREOF
    • Publication number 20130298597
    • Publication date Nov 14, 2013
    • ZHEJIANG SANHUA CO., LTD
    • Changqing Liu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...
  • Information Patent Application

    EXPANSION VALVE
    • Publication number 20130227980
    • Publication date Sep 5, 2013
    • Changqing Liu
    • F25 - REFRIGERATION OR COOLING COMBINED HEATING AND REFRIGERATION SYSTEMS HEA...