TREA

Donna S. Anderson

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Corrosion seal for threaded connections
    • Patent number 6,811,189
    • Issue date Nov 2, 2004
    • Grant Prideco, L.P.
    • Richard W. DeLange
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

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    • Patent number 5,092,635
    • Issue date Mar 3, 1992
    • Baker Hughes Incorporated
    • Richard W. DeLange
    • E21 - EARTH DRILLING MINING