Patents by Inventor George H. O. Morris

George H. O. Morris 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 retrieving pipe sections from a well bore
    Patent number: 4969514
    Abstract: An apparatus for retrieving a pipe section from a well bore includes a structure to be connected to the lower end of a drilling string. The structure includes a cutter at its lower end and a controllable gripping member for gripping the interior of a pipe section. The gripping member is located above the cutter and is adapted to grip the interior of the pipe. The gripping member is such that when in a gripping condition the gripping member remains stationary while the drilling string and the cutter are rotated.
    Type: Grant
    Filed: March 1, 1985
    Date of Patent: November 13, 1990
    Inventors: George H. O. Morris, Robert F. Mitchell