Patents by Inventor Ernst-Jurgen Richter

Ernst-Jurgen Richter 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).

  • Assembly for connecting a crown part to an implant
    Patent number: 4950161
    Abstract: An assembly for connecting a crown part to an implant in which the jaw of an individual has an implant-connecting member in which a setscrew extends into a pin of the crown-connecting part, the two members having juxtaposed surfaces which are in continuous and all-around sealing adhesive-bonding relationship with an annular disk cushion permitting relative displacement of the crown connector to the implant coupler.
    Type: Grant
    Filed: June 1, 1989
    Date of Patent: August 21, 1990
    Inventor: Ernst-Jurgen Richter
  • Artificial dental prosthesis
    Patent number: 4631031
    Abstract: A two-stage elastic cushion is provided between a crown connecting member and an implant connecting member for a dental prosthesis in which the implant is adapted to be anchored in bone of the jaw of a patient. The yieldability during the first stage with increasing force is greater than in the second stage and is achieved by the selection of the material of elastic cushion for shaped factors.
    Type: Grant
    Filed: April 11, 1985
    Date of Patent: December 23, 1986
    Inventor: Ernst-Jurgen Richter