TREA

Thomas R. Bishop

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Releasable overshot
    • Patent number 5,054,833
    • Issue date Oct 8, 1991
    • Zirger; Herschel E.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Fail-safe blowout preventer
    • Patent number 4,877,217
    • Issue date Oct 31, 1989
    • Bowen Tools, Inc.
    • Archie W. Peil
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Lock-down releasing spear assembly
    • Patent number 4,706,745
    • Issue date Nov 17, 1987
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Casing scraper
    • Patent number 4,648,447
    • Issue date Mar 10, 1987
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Inner seal and support rod assembly for high pressure blowout preve...
    • Patent number 4,456,215
    • Issue date Jun 26, 1984
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shock absorber assembly
    • Patent number 4,439,167
    • Issue date Mar 27, 1984
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Blowout preventer inner ram seal assembly
    • Patent number 4,398,729
    • Issue date Aug 16, 1983
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shock absorber assembly for absorbing shocks encountered by a drill...
    • Patent number 4,387,885
    • Issue date Jun 14, 1983
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seal for an overshot and a method of doing same
    • Patent number 4,369,977
    • Issue date Jan 25, 1983
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Shock absorber assembly
    • Patent number 4,331,006
    • Issue date May 25, 1982
    • Bowen Tools, Inc.
    • Thomas R. Bishop
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Stress relieved tool elements
    • Patent number 4,076,436
    • Issue date Feb 28, 1978
    • Bowen Tools, Inc.
    • Damon T. Slator
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Seal assembly
    • Patent number 4,027,816
    • Issue date Jun 7, 1977
    • Bowen Tools, Inc.
    • Damon T. Slator
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Hydromechanical drilling jar
    • Patent number 3,987,858
    • Issue date Oct 26, 1976
    • Bowen Tools, Inc.
    • Damon T. Slator
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic well jar
    • Patent number 3,955,634
    • Issue date May 11, 1976
    • Bowen Tools, Inc.
    • Damon T. Slator
    • E21 - EARTH DRILLING MINING