Patents by Inventor Ursula Buchhorn

Ursula Buchhorn 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: 4919666
    Abstract: The implant is provided with recesses in which therapeutically effective substances are embedded. Each recess is closed by a porous cover which is of a porosity to permit permeation of the therapeutic substance out of the recess while preventing ingrowth of bone tissue. Each cover may be slightly deformed into a convex shape to project from a recess to achieve elastic bonding with a bone.
    Type: Grant
    Filed: December 14, 1988
    Date of Patent: April 24, 1990
    Assignee: Sulzer Brothers Limited
    Inventors: Ursula Buchhorn, Hans B. Willert