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David Duckworth

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  • Conroe, TX, US
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Patents Grantslast 30 patents

Patents Applicationslast 30 patents

  • Information Patent Application

    INTERGLAND GREASE
    • Publication number 20160290053
    • Publication date Oct 6, 2016
    • Halliburton Energy Services Inc.
    • David Patrick Duckworth
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    ELASTOMER-THERMALLY CONDUCTIVE CARBON FIBER COMPOSITIONS FOR ROLLER...
    • Publication number 20160201397
    • Publication date Jul 14, 2016
    • Halliburton Energy Services, Inc.
    • B. Raghava REDDY
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    HIGH-TEMPERATURE LUBRICANTS COMPRISING ELONGATED CARBON NANOPARTICL...
    • Publication number 20160177215
    • Publication date Jun 23, 2016
    • Halliburton Energy Services, Inc.
    • Ping Sui
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    HIGH-TEMPERATURE LUBRICANTS COMPRISING ELONGATED CARBON NANOPARTICL...
    • Publication number 20160010022
    • Publication date Jan 14, 2016
    • Halliburton Energy Services, Inc.
    • Ping Sui
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    SYMMETRICAL HAR SEAL
    • Publication number 20150345226
    • Publication date Dec 3, 2015
    • Halliburton Energy Services Inc.
    • Michael B. Crawford
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    JOINTS COMPRISING CARBON NANOFORESTS
    • Publication number 20150204444
    • Publication date Jul 23, 2015
    • Halliburton Energy Services, Inc.
    • Ping Sui
    • C01 - INORGANIC CHEMISTRY
  • Information Patent Application

    High Performance Rock Bit Grease
    • Publication number 20130220704
    • Publication date Aug 29, 2013
    • David P. Duckworth
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    DRILL BIT WITH SEAL HAVING SPHERES IN A MATRIX SEAL MATERIAL
    • Publication number 20130133955
    • Publication date May 30, 2013
    • Halliburton Energy Services, Inc.
    • David P. DUCKWORTH
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    HIGH PERFORMANCE ROCK BIT GREASE
    • Publication number 20110048809
    • Publication date Mar 3, 2011
    • David P. Duckworth
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...