Patents by Inventor Jackson E. Upshaw

Jackson E. Upshaw 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).

  • Total anatomical knee prosthesis
    Patent number: 4081866
    Abstract: A prosthetic knee joint comprising cooperating femoral and tibial components that allow controlled rotational movement during extension and flexion, simulating the anatomical movement characteristics of the natural knee joint.
    Type: Grant
    Filed: February 2, 1977
    Date of Patent: April 4, 1978
    Assignee: Howmedica, Inc.
    Inventors: Jackson E. Upshaw, Charles Edward Meisch