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AB GRUNDSTENEN AB (METAL PATENT WHSS AB

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  • SE-953 34 HAPARANDA, SE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Apparatus and method to shut down a pipeline
    • Patent number 6,408,944
    • Issue date Jun 25, 2002
    • AB Grundstenen (Metal Patent WHSS AB)
    • Juhani Niinivaara
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Safety valve
    • Patent number 6,216,724
    • Issue date Apr 17, 2001
    • AB Grundstenen (Metal Patent WHSS AB)
    • Juhani Niinivaara
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    System for controlling and stopping oil drilling fires
    • Patent number 6,125,928
    • Issue date Oct 3, 2000
    • AB Grundstenen AB (Metal Patent WHSS AB)
    • Tarmo Ninivaara
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

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