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Horace P. Halling

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  • Durham, CT, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Bi-directional wellhead seal
    • Patent number 8,104,769
    • Issue date Jan 31, 2012
    • Seal Science & Technology, LLC
    • Horace P. Halling
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    BI-DIRECTIONAL WELLHEAD SEAL
    • Publication number 20100148447
    • Publication date Jun 17, 2010
    • SEAL SCIENCE AND TECHNOLOGY, LLC
    • Horace P. Halling
    • E21 - EARTH DRILLING MINING