Patents by Inventor Jimmy R. Keyes

Jimmy R. Keyes 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).

  • Method of and apparatus for cutting and recovering of submarine surface casing
    Patent number: 3983936
    Abstract: The method of and apparatus for cutting and recovering submarine surface casing and associated equipment on the ocean floor included the steps of lowering a string into the surface casing which string includes a swivel, a spear and a cutter, seating the swivel on the casing well head seat, actuating the cutter to sever the casing, setting the spear within the casing and recovering the surface casing and well head equipment associated therewith.
    Type: Grant
    Filed: June 2, 1975
    Date of Patent: October 5, 1976
    Assignee: A-Z International Tool Company
    Inventors: Thomas A. Kennard, Jimmy R. Keyes