TREA

Rodney K Craven

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  • Ojai, CA, US
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Patents Grantslast 30 patents

  • 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...

Patents Applicationslast 30 patents

  • Information Patent Application

    NON CHATTERING PRESSURE RELIEF VALVE
    • Publication number 20170276254
    • Publication date Sep 28, 2017
    • Parker-Hannifin Corporation
    • Geoffrey R. Zhang
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    NON CHATTERING PRESSURE RELIEF VALVE
    • Publication number 20160153572
    • Publication date Jun 2, 2016
    • Parker-Hannifin Corporation
    • Geoffrey R. Zhang
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    NON CHATTERING PRESSURE RELIEF VALVE
    • Publication number 20140026986
    • Publication date Jan 30, 2014
    • Geoffrey R Zhang
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC