Patents by Inventor Bertram Kaden

Bertram Kaden 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).

  • Patent number: 5306308
    Abstract: An intervertebral implant consisting of a disc-shaped spacer made of rigid material and insertable between opposed and adjacent vertebrae in which the opposing sides (1, 2) of the implant bordering the vertebrae are circular discs and have a central raised dome (3 or 4) and roof-shaped projections thereon (5 or 6).
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: April 26, 1994
    Inventors: Ulrich Gross, Herman-Josef Schmitz, Bertram Kaden, Gerhard Fuhrmann
  • Patent number: 5002576
    Abstract: An intervertebral disk endoprosthesis is filled with an elastic material and provided with cover plates at its end faces, and has a circular or elliptical corrugated tube surrounding the viscoelastic material, the tube being terminated by cover plates.
    Type: Grant
    Filed: June 6, 1989
    Date of Patent: March 26, 1991
    Assignee: Mecron Medizinische Produkte GmbH
    Inventors: Gerhard Fuhrmann, Ulrich Gross, Bertram Kaden, Herman-Josef Schmitz, Thomas Fritz, Curt Kranz