Patents by Inventor Andrew Warnock Dobson

Andrew Warnock Dobson 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).

  • Apparatus for and method of radial expansion of a tubular member
    Patent number: 7228911
    Abstract: Apparatus for and method of radial expansion of a tubular member, with embodiments of the apparatus including an expander device, for example an expansion cone, which has a driver device either attached to it or integral therewith. The driver device can be a pump for example, where the pump creates a differential pressure across the expander device to cause it to move.
    Type: Grant
    Filed: May 9, 2002
    Date of Patent: June 12, 2007
    Assignee: e2Tech Limited
    Inventors: Philip Michael Burge, Andrew Warnock Dobson
  • Apparatus for and method of radial expansion of a tubular member
    Publication number: 20040256111
    Abstract: Apparatus for and method of radial expansion of a tubular member, with embodiments of the apparatus including an expander device, for example an expansion cone, which has a driver device either attached to it or integral therewith. The driver device can be a pump for example, where the pump creates a differential pressure across the expander device to cause it to move.
    Type: Application
    Filed: August 2, 2004
    Publication date: December 23, 2004
    Inventors: Philip Michael Burge, Andrew Warnock Dobson