TREA

Rex E. Duhn

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  • The Woodlands, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Drilling quick connectors
    • Patent number RE43773
    • Issue date Oct 30, 2012
    • Seaboard International Inc.
    • Rex E. Duhn
    • 285 - Pipe joints or couplings
  • Information Patent Grant

    Drilling quick connectors
    • Patent number RE43697
    • Issue date Oct 2, 2012
    • Seaboard International Inc.
    • Rex E. Duhn
    • 285 - Pipe joints or couplings