TREA

David T. Merritt

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  • Frisco, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Eccentrically actuated perforating guns
    • Patent number 5,224,545
    • Issue date Jul 6, 1993
    • Otis Engineering Corporation
    • Flint R. George
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Side pocket mandrel
    • Patent number RE32469
    • Issue date Aug 11, 1987
    • Otis Engineering Corporation
    • David T. Merritt
    • 166 - Wells
  • Information Patent Grant

    Side pocket mandrel and method of construction
    • Patent number RE32441
    • Issue date Jun 23, 1987
    • Otis Engineering Corporation
    • Robert S. Higgins
    • 166 - Wells
  • Information Patent Grant

    Side pocket mandrel
    • Patent number 4,673,036
    • Issue date Jun 16, 1987
    • Otis Engineering Corporation
    • David T. Merritt
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Well tool locking device
    • Patent number 4,554,972
    • Issue date Nov 26, 1985
    • Otis Engineering Corporation
    • David T. Merritt
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Side pocket mandrel
    • Patent number 4,416,330
    • Issue date Nov 22, 1983
    • Otis Engineering Corporation
    • David T. Merritt
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Kickover tool
    • Patent number 4,368,780
    • Issue date Jan 18, 1983
    • Otis Engineering Corporation
    • David T. Merritt
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Side pocket mandrel and method of construction
    • Patent number 4,333,527
    • Issue date Jun 8, 1982
    • Otis Engineering Corporation
    • Robert S. Higgins
    • E21 - EARTH DRILLING MINING