Patents by Inventor Wolfgang Bethmann

Wolfgang Bethmann 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).

  • Active implant
    Patent number: 5032129
    Abstract: The active implant for use in medicine, such as for tooth implants or endoprosthesis For positions influencing the growth mechanisms of the bone and which remain in place for a long time. The active implant comprises a base and flexible structures therein provided with an oxide which contains growth stimulators and has a stable p-n junction.
    Type: Grant
    Filed: November 18, 1986
    Date of Patent: July 16, 1991
    Assignee: Technische Hochschule Karl-Marx-Stadt
    Inventors: Peter Kurze, Waldemar Krysmann, Wolfram Knoefler, Hans-Ludwig Graf, Wolfgang Bethmann, Horst Hampel