TREA

James G. Sjoberg

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  • Humble, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Mud pump valve
    • Patent number 4,770,206
    • Issue date Sep 13, 1988
    • Chromium Corporation
    • James G. Sjoberg
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Single acting mud pump piston
    • Patent number 4,735,129
    • Issue date Apr 5, 1988
    • Chromium Corporation
    • James G. Sjoberg
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...
  • Information Patent Grant

    Mud pump valve
    • Patent number 4,180,097
    • Issue date Dec 25, 1979
    • Chromalloy American Corporation
    • James G. Sjoberg
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...