Patents by Inventor Robert Cowman

Robert Cowman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Seal arrangement
    Patent number: 7370708
    Abstract: A seal arrangement comprises an expandable inner tubular and an outer tubular. The inner tubular comprises an axially extending lip seal. Expansion of the inner tubular serves to energise the lip seal, a free end of which will be urged into contact with the outer tubular.
    Type: Grant
    Filed: July 29, 2004
    Date of Patent: May 13, 2008
    Assignee: Weatherford/Lamb, Inc.
    Inventors: Neil Andrew Abercrombie Simpson, Alexander Craig Mackay, Robert Cowman
  • Seal arrangement
    Publication number: 20050057005
    Abstract: A seal arrangement comprises an expandable inner tubular and an outer tubular. The inner tubular comprises an axially extending lip seal. Expansion of the inner tubular serves to energise the lip seal, a free end of which will be urged into contact with the outer tubular.
    Type: Application
    Filed: July 29, 2004
    Publication date: March 17, 2005
    Inventors: Neil Andrew Simpson, Alexander Mackay, Robert Cowman