Patents by Inventor Karl F. Schlegel

Karl F. Schlegel 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: 4170990
    Abstract: Method for implanting and subsequently removing mechanical implants of an Ni-Ti or a Ti-Nb alloy material which exhibits the memory effect which occurs due to heating of the implant to a temperature above the specific temperature for the alloy material. The memory effect is actuated by heating the implant after implantation of same in the living tissue, and upon completion of the healing process, the implant is substantially returned to its shape upon implantation by cooling it to a temperature below the temperature which actuates the opposite memory effect to facilitate removal.
    Type: Grant
    Filed: January 27, 1978
    Date of Patent: October 16, 1979
    Assignee: Fried. Krupp Gesellschaft mit beschrankter Haftung
    Inventors: Frank Baumgart, Gunter Bensmann, Jorg Haasters, Jurgen Hartwig, Joachim Jorde, Manfred Muller, Karl F. Schlegel