Patents by Inventor Tommy K. Griffin

Tommy K. Griffin 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 and method for inserting coiled tubing
    Patent number: 4621403
    Abstract: An apparatus and method for inserting coiled tubing into a drill string in an oil well. The apparatus has a coiled tubing injector head, pressure control equipment, and a quick connect coupling. The coupling will connect to a tool joint on the drill string or to a saver sub threaded onto the drill string. The method includes lowering the apparatus until the quick connect coupling latches onto the tool joint or saver sub.
    Type: Grant
    Filed: May 18, 1984
    Date of Patent: November 11, 1986
    Assignee: Hughes Tool Company
    Inventors: Richard C. Babb, Tommy K. Griffin