Patents by Inventor Gerhard Plischka

Gerhard Plischka 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).

  • Jaw implant for receiving a replacement-tooth holder
    Patent number: 4668191
    Abstract: A jaw implant having a bore to accommodate a replacement tooth holder, which has a screw head and a lower portion provided with a screw thread. The screw head is configured and proportioned such that the portion provided for embedment into the cortical bone tissue is of cylindrical shape, and has a diameter that is not smaller than the outside diameter of the thread on the lower portion.
    Type: Grant
    Filed: May 28, 1985
    Date of Patent: May 26, 1987
    Assignee: Feldmuehle Aktiengesellschaft
    Inventor: Gerhard Plischka
  • Helicoidally grooved dental burr
    Patent number: 4466795
    Abstract: A dental burr to be used in a clockwise-rotating chuck of a drilling machine has a generally cylindrical or conical working surface, coated with abrasive particles (diamonds), which forms a flat helicoidal strip of left-handed pitch whose width substantially equals that of an intervening continuous groove.
    Type: Grant
    Filed: September 13, 1982
    Date of Patent: August 21, 1984
    Assignee: Dendia-Werk Dr. Ing. Hans O. Scheid Gesellschaft M.B.H.
    Inventor: Gerhard Plischka