TREA

David Cooper

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  • Salina, KS, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Snap-lock bushing for prepacked screens
    • Patent number 7,735,553
    • Issue date Jun 15, 2010
    • Kejr Inc.
    • Mike B. Carlin
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Mechanical bladder pump
    • Patent number 6,877,965
    • Issue date Apr 12, 2005
    • Kejr, Inc.
    • Wesley McCall
    • F04 - POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC...

Patents Applicationslast 30 patents

  • Information Patent Application

    SNAP-LOCK BUSHING FOR PREPACKED SCREENS
    • Publication number 20080001403
    • Publication date Jan 3, 2008
    • Kejr, Inc.
    • Mike B. Carlin
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Mechanical bladder pump
    • Publication number 20040091378
    • Publication date May 13, 2004
    • Kejr, Inc.
    • Wesley McCall
    • E21 - EARTH DRILLING MINING