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Ping Cai

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  • Sugar Land, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Hydraulic tensioning flange connector method
    • Patent number 9,009,945
    • Issue date Apr 21, 2015
    • Weatherford Technology Holdings, LLC
    • Todd Travis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Wellhead rotating breech lock and method
    • Patent number 8,763,708
    • Issue date Jul 1, 2014
    • Weatherford/Lamb, Inc.
    • Todd Travis
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Hydraulic tensioning flange connector
    • Patent number 8,616,590
    • Issue date Dec 31, 2013
    • Weatherford/Lamb, Inc.
    • Todd Travis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...

Patents Applicationslast 30 patents

  • Information Patent Application

    Hydraulic Tensioning Flange Connector
    • Publication number 20140075741
    • Publication date Mar 20, 2014
    • WEATHERFORD/LAMB, INC.
    • Todd Travis
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC
  • Information Patent Application

    Wellhead Rotating Breech Lock
    • Publication number 20120085552
    • Publication date Apr 12, 2012
    • WEATHERFORD/LAMB, INC.
    • Todd Travis
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Hydraulic Tensioning Flange Connector
    • Publication number 20110187098
    • Publication date Aug 4, 2011
    • WEATHERFORD/LAMB, INC.
    • Todd Travis
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...