Patents by Inventor Thomas R. Shirley

Thomas R. Shirley 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).

  • External ligament system
    Patent number: 5599288
    Abstract: An external ligament system is formed as part of a flexible knee brace by disposing a pair of cables so that they each run from an anchor point on one side of the leg at the thigh diagonally down across the front of the thigh, around the opposite side of the patella, and down across the front of the calf to an anchor point on the first-mentioned side of the leg at the calf. Rigid linkages hinged at the knee are provided on each side of the leg. The tension of the cable can be varied by pulling the ends of the cables together and securing them with adjustable fasteners.
    Type: Grant
    Filed: November 30, 1994
    Date of Patent: February 4, 1997
    Assignee: GSA, Inc.
    Inventors: Terry L. Shirley, Thomas R. Shirley