TREA

Leif Åkesson

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  • 4300 Sandnes, NO
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Patents Grantslast 30 patents

  • Information Patent Grant

    Borehole opener
    • Patent number RE41119
    • Issue date Feb 16, 2010
    • Leif Åkesson
    • 175 - Boring or penetrating the earth
  • Information Patent Grant

    Borehole opener
    • Patent number 6,360,831
    • Issue date Mar 26, 2002
    • Halliburton Energy Services, Inc.
    • Leif Åkesson
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Bore hole opener
    • Publication number 20040084224
    • Publication date May 6, 2004
    • Halliburton Energy Services, Inc.
    • Jean-Pierre Lassoie
    • E21 - EARTH DRILLING MINING