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Donald Gordon Reitsma

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  • Rijswijk, NL
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method of drilling a lossy formation
    • Patent number 7,828,081
    • Issue date Nov 9, 2010
    • At-Balance Americas LLC
    • Donald Gordon Reitsma
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drilling system and method
    • Patent number 7,395,878
    • Issue date Jul 8, 2008
    • AT-Balance Americas, LLC
    • Donald Gordon Reitsma
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Method of Drilling a Lossy Formation
    • Publication number 20080035374
    • Publication date Feb 14, 2008
    • Donald Gordon Reitsma
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Drilling system and method
    • Publication number 20060175090
    • Publication date Aug 10, 2006
    • Donald Gordon Reitsma
    • E21 - EARTH DRILLING MINING