TREA

David Stephenson

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  • Dubai, AE
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Patents Grantslast 30 patents

  • Information Patent Grant

    Tubing expansion
    • Patent number 8,075,813
    • Issue date Dec 13, 2011
    • Weatherford/Lamb, Inc.
    • David Stephenson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Coupling tubulars
    • Patent number 7,578,043
    • Issue date Aug 25, 2009
    • Weatherford/Lamb, Inc.
    • Neil Andrew Abercrombie Simpson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Tubing expansion
    • Patent number 7,144,243
    • Issue date Dec 5, 2006
    • Weatherford/Lamb, Inc.
    • David Stephenson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Expandable connection for use with a swelling elastomer
    • Patent number 6,840,325
    • Issue date Jan 11, 2005
    • Weatherford/Lamb, Inc.
    • David J. Stephenson
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    TUBING EXPANSION
    • Publication number 20120181732
    • Publication date Jul 19, 2012
    • David Stephenson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Coupling tubulars
    • Publication number 20080007060
    • Publication date Jan 10, 2008
    • Neil Andrew Abercrombie Simpson
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    TUBING EXPANSION
    • Publication number 20070107195
    • Publication date May 17, 2007
    • David Stephenson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    Expandable connection for use with a swelling elastomer
    • Publication number 20040060706
    • Publication date Apr 1, 2004
    • David J. Stephenson
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Coupling tubulars
    • Publication number 20040017081
    • Publication date Jan 29, 2004
    • Neil Andrew Abercrombie Simpson
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Tubing expansion
    • Publication number 20030127774
    • Publication date Jul 10, 2003
    • Weatherford/Lamb, Inc.
    • David Stephenson
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...