Patents by Inventor Karl B. Zimmers

Karl B. Zimmers 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).

  • Spine disc
    Patent number: 5534030
    Abstract: A spinal disc prosthesis comprises an upper rigid plate, a lower rigid plate, and an elastomeric core interposed between the plates and adhered to the plates. The elastomeric core has an upper portion with an outer peripheral surface extending substantially perpendicular to the upper plate. A lower portion of the elastomeric core has an outer peripheral surface extending substantially perpendicular to the lower plate. An intermediate portion of the elastomeric core, extending between the upper and lower portions, has a concave outer peripheral surface. Each of the upper and lower plates has a plurality of ribs extending into the elastomeric core to secure the elastomeric core to the upper and lower plates.
    Type: Grant
    Filed: April 25, 1994
    Date of Patent: July 9, 1996
    Assignee: AcroMed Corporation
    Inventors: Richard R. Navarro, Carl R. McMillin, Karl B. Zimmers