Patents by Inventor Ronald T. Zellem

Ronald T. Zellem 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).

  • Burr hole cover for cranial surgery
    Patent number: 5961519
    Abstract: The burr hole cover includes a thin plate having radial arms in an exemplary embodiment. Each arm has a distal end opening for receiving a fastener for attaching the plate to the cranium. An enlarged access passageway through the plate, preferably at the plate's center provides a passageway for an intracranial monitoring tube. The passageway is elongated to allow the tube to pass through the burr hole cover at a gentle angle.
    Type: Grant
    Filed: April 11, 1997
    Date of Patent: October 5, 1999
    Assignee: Kinamed, Inc.
    Inventors: Robert Bruce, Ronald T. Zellem