TREA

Alistair Bertram Clark

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  • Aberdeenshire, GB
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Patents Grantslast 30 patents

  • Information Patent Grant

    Cement flow control tool
    • Patent number 7,743,829
    • Issue date Jun 29, 2010
    • Downhole Products PLC
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Centralizer
    • Patent number 7,694,733
    • Issue date Apr 13, 2010
    • Downhole Products PLC
    • Alistair Bertram Clark
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Slotted expandable centraliser
    • Patent number 7,096,939
    • Issue date Aug 29, 2006
    • Downhole Products PLC
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Centraliser
    • Patent number 6,830,102
    • Issue date Dec 14, 2004
    • Downhole Products PLC
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Downhole tool
    • Patent number 6,659,173
    • Issue date Dec 9, 2003
    • Downhole Products PLC
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Casing centralizer
    • Patent number 6,435,275
    • Issue date Aug 20, 2002
    • Downhole Products plc
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Downhole tool
    • Patent number 6,401,820
    • Issue date Jun 11, 2002
    • Downhole Products PLC
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Casing centraliser
    • Patent number 6,006,830
    • Issue date Dec 28, 1999
    • Downhole Products (UK) Limited
    • William Barron
    • E21 - EARTH DRILLING MINING
  • Information Patent Grant

    Casing centraliser
    • Patent number 5,797,455
    • Issue date Aug 25, 1998
    • Downhole Products (UK) Limited
    • William Barron
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Centralizer
    • Publication number 20080210419
    • Publication date Sep 4, 2008
    • Downhole Products PLC
    • Alistair Bertram Clark
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Cement flow control tool
    • Publication number 20060000993
    • Publication date Jan 5, 2006
    • Downhole Products plc
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Slotted expandable centraliser
    • Publication number 20050150654
    • Publication date Jul 14, 2005
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Centralizer
    • Publication number 20030159834
    • Publication date Aug 28, 2003
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Centraliser
    • Publication number 20030010540
    • Publication date Jan 16, 2003
    • Ian Alastair Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    Downhole tool
    • Publication number 20020096368
    • Publication date Jul 25, 2002
    • Downhole Products PLC
    • Ian A. Kirk
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    CASING CENTRLISER
    • Publication number 20020023749
    • Publication date Feb 28, 2002
    • IAN ALASTAIR KIRK
    • E21 - EARTH DRILLING MINING
  • Information Patent Application

    ADI centralizer
    • Publication number 20010035291
    • Publication date Nov 1, 2001
    • Downhole Products PLC
    • Ian Alastair Kirk
    • Y10 - TECHNICAL SUBJECTS COVERED BY FORMER USPC