TREA

Geoffrey Zhang

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  • Van Nuys, CA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Zero-flow fire-resistant thread-lock quick disconnect coupling
    • Patent number 11,137,100
    • Issue date Oct 5, 2021
    • Parker-Hannifin Corporation
    • Geoffrey R. Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Non chattering pressure relief valve
    • Patent number 10,221,953
    • Issue date Mar 5, 2019
    • Parker-Hannifin Corporation
    • Geoffrey R Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Non chattering pressure relief valve
    • Patent number 9,709,182
    • Issue date Jul 18, 2017
    • Parker-Hannifin Corporation
    • Geoffrey R Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Non chattering pressure relief valve
    • Patent number 9,303,776
    • Issue date Apr 5, 2016
    • Parker-Hannifin Corporation
    • Geoffrey R Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Breakaway thread-lock quick connect/disconnect coupling
    • Patent number 9,279,529
    • Issue date Mar 8, 2016
    • Parker-Hannifin Corporation
    • Geoffrey R. Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Pressure balanced transfer tube assembly with first and second inne...
    • Patent number 8,480,133
    • Issue date Jul 9, 2013
    • Parker-Hannifin Corporation
    • Geoffrey R. Zhang
    • B64 - AIRCRAFT AVIATION COSMONAUTICS
  • Information Patent Grant

    Dual walled transfer tube
    • Patent number 7,717,473
    • Issue date May 18, 2010
    • Parker-Hannifin Corporation
    • Geoffrey R. Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents