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Ronald Ellis Grandage

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  • West Yorkshire, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Gate valve having reduced friction
    • Patent number 7,201,361
    • Issue date Apr 10, 2007
    • Aeon Plc
    • Ronald Ellis Grandage
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Valves
    • Publication number 20070164248
    • Publication date Jul 19, 2007
    • Aeon Plc.
    • Ronald Ellis Grandage
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Valves
    • Publication number 20030173535
    • Publication date Sep 18, 2003
    • Ronald Ellis Grandage
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...