TREA

Graham H. Stephenson

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Patents Grantslast 30 patents

  • Information Patent Grant

    Poppet-style valve arrangements
    • Patent number 11,988,288
    • Issue date May 21, 2024
    • Swagelok Company
    • David John Owen Parkes
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Self-aligning valve seal
    • Patent number 9,835,256
    • Issue date Dec 5, 2017
    • Swagelok Company
    • Charles Kneen Bregazzi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    POPPET-STYLE VALVE ARRANGEMENTS
    • Publication number 20220341496
    • Publication date Oct 27, 2022
    • SWAGELOK COMPANY
    • David John Owen Parkes
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SELF-ALIGNING VALVE SEAL
    • Publication number 20180031131
    • Publication date Feb 1, 2018
    • SWAGELOK COMPANY
    • Charles Kneen Bregazzi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    SELF-ALIGNING VALVE SEAL
    • Publication number 20160131264
    • Publication date May 12, 2016
    • SWAGELOK COMPANY
    • Charles Kneen Bregazzi
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...