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David W. Clem

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  • Houston, TX, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Box protector for a threaded joint for pipes
    • Patent number 9,523,458
    • Issue date Dec 20, 2016
    • Nippon Steel & Sumitomo Metal Corporation
    • Yasuhiro Yamamoto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Protector for tubular threaded joint
    • Patent number 8,622,091
    • Issue date Jan 7, 2014
    • Nippon Steel & Sumitomo Metal Corporation
    • Yasuhiro Yamamoto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Grant

    Pipe thread protector
    • Patent number 8,424,570
    • Issue date Apr 23, 2013
    • Drilltec Patents & Technologies Corporation
    • Bryan C. Baker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Grant

    Elongated member lifting system
    • Patent number 7,419,198
    • Issue date Sep 2, 2008
    • Drilltec Patents & Technologie Company, Inc.
    • Bryan C. Baker
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Grant

    Strainer basket and method of making and using the same
    • Patent number 6,848,584
    • Issue date Feb 1, 2005
    • Drilltec Patents & Technologies Co., Inc.
    • Darrell J. Weigelt
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Grant

    Power cord composite threaded sealing cap
    • Patent number 6,676,422
    • Issue date Jan 13, 2004
    • Drilltec Patents & Technologies Co., Inc.
    • Bryan C. Baker
    • H01 - BASIC ELECTRIC ELEMENTS

Patents Applicationslast 30 patents

  • Information Patent Application

    BOX DETECTOR FOR A THREADED JOINT FOR PIPES
    • Publication number 20140352837
    • Publication date Dec 4, 2014
    • Yasuhiro Yamamoto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    Universal Pipe Thread Protector
    • Publication number 20130213516
    • Publication date Aug 22, 2013
    • DRILLTEC PATENTS & TECHNOLOGIES CORPORATION
    • David W. Clem
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Pipe Thread Protector
    • Publication number 20110265904
    • Publication date Nov 3, 2011
    • DRILLTEC PATENTS & TECHNOLOGIES CORPORATION
    • Bryan C. Baker
    • B65 - CONVEYING PACKING STORING HANDLING THIN OR FILAMENTARY MATERIAL
  • Information Patent Application

    Protector for tubular threaded joint
    • Publication number 20100038904
    • Publication date Feb 18, 2010
    • Yasuhiro Yamamoto
    • C10 - PETROLEUM, GAS OR COKE INDUSTRIES TECHNICAL GASES CONTAINING CARBON MON...
  • Information Patent Application

    ELONGATED MEMBER LIFTING SYSTEM
    • Publication number 20080290675
    • Publication date Nov 27, 2008
    • DRILLTEC PATENTS & TECHNOLOGIES CORPORATION
    • Bryan C. Baker
    • B66 - HOISTING LIFTING HAULING
  • Information Patent Application

    Strainer basket and method of making and using the same
    • Publication number 20050103704
    • Publication date May 19, 2005
    • DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
    • Darrell J. Weigelt
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Strainer basket and method of making and using the same
    • Publication number 20040060856
    • Publication date Apr 1, 2004
    • DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
    • Darrell J. Weigeldt
    • B01 - PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
  • Information Patent Application

    Elongated member lifting system
    • Publication number 20030201653
    • Publication date Oct 30, 2003
    • DRILLTEC PATENTS & TECHNOLOGIES COMPANY, INC.
    • Bryan C. Baker
    • B66 - HOISTING LIFTING HAULING