TREA

Steve Hart

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  • Brimsham Park, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Rotary steerable devices and methods of use
    • Patent number 7,980,328
    • Issue date Jul 19, 2011
    • Schlumberger Technology Corporation
    • John Hallworth
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Steerable drilling system
    • Patent number 7,942,214
    • Issue date May 17, 2011
    • Schlumberger Technology Corporation
    • Ashley Johnson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hybrid rotary steerable system
    • Patent number 7,188,685
    • Issue date Mar 13, 2007
    • Schlumberge Technology Corporation
    • Geoff Downton
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Design method for drillout bi-center bits
    • Patent number 6,606,923
    • Issue date Aug 19, 2003
    • Grant Prideco, L.P.
    • Steven James Hart
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drillout bi-center bit
    • Patent number 6,394,200
    • Issue date May 28, 2002
    • Camco International (UK) Limited
    • Graham R. Watson
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents