TREA

Jeffery L. Knippa

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  • Point Venture, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Split body swelling packer
    • Patent number 7,730,940
    • Issue date Jun 8, 2010
    • Baker Hughes Incorporated
    • Jeffery L. Knippa
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents