TREA

Roar Gravningen

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  • Kongsberg, NO
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Patents Grantslast 30 patents

  • Information Patent Grant

    Double disc gate valve
    • Patent number 8,905,374
    • Issue date Dec 9, 2014
    • Kongsberg Esco AS
    • Anders Nygaard
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Gate valve
    • Patent number 6,942,194
    • Issue date Sep 13, 2005
    • Danfoss Esco AS
    • Roar Gravningen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    DOUBLE DISC GATE VALVE
    • Publication number 20110233442
    • Publication date Sep 29, 2011
    • Kongsberg Esco As
    • Anders Nygaard
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Application

    Gate valve
    • Publication number 20050098756
    • Publication date May 12, 2005
    • Roar Gravningen
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...