Patents by Inventor John H. Hiss

John H. Hiss 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 surface finishing orthopedic implant devices
    Patent number: 5057108
    Abstract: A surface treatment process for stainless steel orthopedic implant devices and an orthopedic implant device surface treated in accordance with the disclosed process are disclosed. A rough ground or machined stainless steel part is shot blasted with stainless steel shot. The device is then shot blasted with glass beads having a nominal size of between one-tenth and one-half that of the stainless steel shot. Electropolishing and passivation follow the shot blasting steps. A part thus treated includes a heavily cold-worked outer layer that enhances the fatigue properties of the stainless steel orthopedic implant device.
    Type: Grant
    Filed: January 12, 1990
    Date of Patent: October 15, 1991
    Assignee: Zimmer, Inc.
    Inventors: H. Ravindranath Shetty, John H. Hiss, Kevin M. Greig