David W. Hughes

Person

  • Houston, TX, US

Patents Grantslast 30 patents

  • Information Patent Grant

    Downhole tool with tethered ball

    • Patent number 10,801,298
    • Issue date Oct 13, 2020
    • The WellBoss Company, LLC
    • David Hughes
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Downhole tool and methods of use

    • Patent number 10,633,534
    • Issue date Apr 28, 2020
    • The WellBoss Company, LLC
    • Evan Lloyd Davies
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    One-piece slip

    • Patent number D877216
    • Issue date Mar 3, 2020
    • The WellBoss Company, LLC
    • Evan Lloyd Davies
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    One-piece slip

    • Patent number D877217
    • Issue date Mar 3, 2020
    • The WellBoss Company, LLC
    • Evan Lloyd Davies
    • D15 - Machines not elsewhere specified
  • Information Patent Grant

    Subsea control pod valve assembly

    • Patent number 4,637,419
    • Issue date Jan 20, 1987
    • Vetco Offshore, Inc.
    • David W. Hughes
    • F16 - ENGINEERING ELEMENTS AND UNITS GENERAL MEASURES FOR PRODUCING AND MAINT...
  • Information Patent Grant

    Misalignment tieback tool - non-rotating casing

    • Patent number 4,613,162
    • Issue date Sep 23, 1986
    • Vetco Offshore Industries, Inc.
    • David W. Hughes
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Misalignment tieback tool - rotating casing

    • Patent number 4,613,164
    • Issue date Sep 23, 1986
    • Vetco Offshore Industries, Inc.
    • David W. Hughes
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Misalignment tieback tool - swivel connection

    • Patent number 4,611,829
    • Issue date Sep 16, 1986
    • Vetco Offshore Industries, Inc.
    • David W. Hughes
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Connector, ratcheting type

    • Patent number 4,607,865
    • Issue date Aug 26, 1986
    • Vetco Offshore Industries, Inc.
    • David W. Hughes
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    DOWNHOLE TOOL WITH TETHERED BALL

    • Publication number 20190323314
    • Publication date Oct 24, 2019
    • Downhole Technology, LLC
    • David Hughes
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE TOOL WITH BOTTOM COMPOSITE SLIP

    • Publication number 20190316434
    • Publication date Oct 17, 2019
    • Downhole Technology, LLC
    • Evan Lloyd Davies
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    COMPOSITION OF MATTER AND USE THEREOF

    • Publication number 20180142096
    • Publication date May 24, 2018
    • Downhole Technology, LLC
    • Liguo Li
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    DOWNHOLE TOOL AND METHOD OF USE

    • Publication number 20180038191
    • Publication date Feb 8, 2018
    • Downhole Technology, LLC
    • Evan Lloyd Davies
    • E21 - EARTH DRILLING MINING