TREA

David S. LI

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  • Katy, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Compliant expansion swage
    • Patent number 9,308,566
    • Issue date Apr 12, 2016
    • Weatherford Technology Holdings, LLC
    • Lev Ring
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Expandable liner hanger and method of use
    • Patent number 9,255,467
    • Issue date Feb 9, 2016
    • Weatherford Technology Holdings, LLC
    • Gordon Thomson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Expandable liner hanger and method of use
    • Patent number 8,443,881
    • Issue date May 21, 2013
    • Weatherford/Lamb, Inc.
    • Gordon Thomson
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Compliant expansion swage
    • Patent number 8,356,663
    • Issue date Jan 22, 2013
    • Weatherford/Lamb, Inc.
    • Lev Ring
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Grant

    Compliant expansion swage
    • Patent number 7,980,302
    • Issue date Jul 19, 2011
    • Weatherford/Lamb, Inc.
    • Lev Ring
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...

Patents Applicationslast 30 patents

  • Information Patent Application

    EXPANDABLE LINER HANGER AND METHOD OF USE
    • Publication number 20130319691
    • Publication date Dec 5, 2013
    • WEATHERFORD/LAMB, INC.
    • Gordon THOMSON
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    COMPLIANT EXPANSION SWAGE
    • Publication number 20130180306
    • Publication date Jul 18, 2013
    • WEATHERFORD/LAMB, INC.
    • Lev Ring
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    COMPLIANT EXPANSION SWAGE
    • Publication number 20110232900
    • Publication date Sep 29, 2011
    • Lev Ring
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...
  • Information Patent Application

    EXPANDABLE LINER HANGER AND METHOD OF USE
    • Publication number 20100089591
    • Publication date Apr 15, 2010
    • Gordon Thomson
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    COMPLIANT EXPANSION SWAGE
    • Publication number 20100089592
    • Publication date Apr 15, 2010
    • Lev Ring
    • B21 - MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL PUNCHING...