TREA

Fraser Walsh

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  • Winchester, MA, US
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Patents Grantslast 30 patents

  • Information Patent Grant

    Annular pack
    • Patent number 6,610,441
    • Issue date Aug 26, 2003
    • Schlumberger Technology Corporation
    • Donald E. Hensley
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Annular pack having mutually engageable annular segments
    • Patent number 6,547,010
    • Issue date Apr 15, 2003
    • Schlumberger Technology Corporation
    • Donald E. Hensley
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Grant

    Annular pack
    • Patent number 6,280,874
    • Issue date Aug 28, 2001
    • Schlumberger Technology Corp.
    • Donald E. Hensley
    • E21 - EARTH DRILLING MINING

Patents Applicationslast 30 patents

  • Information Patent Application

    Annular pack
    • Publication number 20020012837
    • Publication date Jan 31, 2002
    • Donald E. Hensley
    • H01 - BASIC ELECTRIC ELEMENTS
  • Information Patent Application

    Annular pack
    • Publication number 20010049049
    • Publication date Dec 6, 2001
    • Donald E. Hensley
    • H01 - BASIC ELECTRIC ELEMENTS