Patents by Inventor Harmut Kalberer

Harmut Kalberer 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).

  • Tapered hip-joint socket without taper lock
    Patent number: 5725589
    Abstract: Disclosed is a hip-joint socket for insertion into bone tissue. The hip-joint socket has an outer metal shell and an inner antifriction shell, the contact surface of the antifriction shell in the metal shell being conical in shape. The antifriction liner lies upon the conical contact surface without self-locking and the antifriction liner is fixed in the metal shell by a retaining ring. The antifriction shell is thus protected against canting and drop-out but can be removed out of its seat nondestructively and replaced.
    Type: Grant
    Filed: April 17, 1996
    Date of Patent: March 10, 1998
    Assignee: Cera GmbH, Innovatives-Keramik-Engineering
    Inventors: Hans-Georg Pfaff, Ernst Hoch, Harmut Kalberer