Patents by Inventor John Murley

John Murley 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 manufacturing surgical implants from cast stainless steel and product
    Patent number: 4775426
    Abstract: A surgical implant is disclosed manufactured from cast austenitic stainless steel and cold-forged to a final shape. The endoprosthesis is initially a preform which is cast oversized in shape and dimensions. It is then compressed using the cold-forging process to its final size and shape. Using a cast material as a starting material and then compressing it substantially reduces the porosity of the material and increases its strength compared to a machined product from a wrought material.
    Type: Grant
    Filed: April 3, 1986
    Date of Patent: October 4, 1988
    Assignee: Richards Medical Company
    Inventors: John Murley, Bob Wigginton, Imogene Baswell