David Michael Kay

Person

  • Hartlepool, GB

Patents Grantslast 30 patents

  • Information Patent Grant

    Gate valve

    • Patent number 8,672,295
    • Issue date Mar 18, 2014
    • National-Oilwell Varco, L.P.
    • Samir Dhawan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Gate Valve

    • Publication number 20120085957
    • Publication date Apr 12, 2012
    • National-Oilwell Varco, L.P.
    • Samir Dhawan
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Gate valve

    • Publication number 20030116742
    • Publication date Jun 26, 2003
    • Robert William Anderson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...