TREA

Ning Zhan

Follow

Person

  • Beijing, CN
People

Patents Grantslast 30 patents

  • Information Patent Grant

    Control valve
    • Patent number 10,935,272
    • Issue date Mar 2, 2021
    • Siemens Schweiz AG
    • Lei Wang
    • F24 - HEATING RANGES VENTILATING

Patents Applicationslast 30 patents

  • Information Patent Application

    VALVE ACTUATOR
    • Publication number 20250075822
    • Publication date Mar 6, 2025
    • SIEMENS SCHWEIZ AG
    • Yong Qiu Wei
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Control Valve
    • Publication number 20190186775
    • Publication date Jun 20, 2019
    • SIEMENS SCHWEIZ AG
    • Lei Wang
    • G05 - CONTROLLING REGULATING