TREA

Michael P. Hartmann

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tubing hanger with annulus bore
    • Patent number 6,659,181
    • Issue date Dec 9, 2003
    • Cooper Cameron Corporation
    • Michael P. Hartmann
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Insulating support for tubing string
    • Patent number 4,923,006
    • Issue date May 8, 1990
    • Cameron Iron Works USA, Inc.
    • Michael P. Hartmann
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Tubing hanger with annulus bore
    • Publication number 20030089501
    • Publication date May 15, 2003
    • Michael P. Hartmann
    • E21 - EARTH DRILLING MINING