TREA

Richard C. Haas

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  • Corpus Christi, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Method and apparatus for drilling wells
    • Patent number 5,101,913
    • Issue date Apr 7, 1992
    • Charles O. Stockley
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Drilling method
    • Patent number 5,010,966
    • Issue date Apr 30, 1991
    • Chalkbus, Inc.
    • Charles O. Stokley
    • E21 - EARTH DRILLING MINING