Patents by Inventor Robert C. Westerberg

Robert C. Westerberg 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).

  • Prosthetic bone joint devices
    Patent number: 3991425
    Abstract: A surgically implantable prosthetic joint replacement device formed preferably of ceramic and having mating concave and convex condylar surfaces and intersecting lands for stopping motion at extended and pairs of contracted positions of the joint. The device consists of male and female portions for implantation in medullary canals of metacarpals and/or phalanges and having grooves along the dorsal surfaces for reception of extensor tendons. Engagement of the parts permits rotation and hyperextension.
    Type: Grant
    Filed: November 20, 1975
    Date of Patent: November 16, 1976
    Assignee: Minnesota Mining and Manufacturing Company
    Inventors: Lawrence L. Martin, Robert C. Westerberg