Patents by Inventor Gerd Haker

Gerd Haker 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).

  • Mould for making and holding a working model of a jaw impression for the manufacture of dental prostheses
    Patent number: 4119292
    Abstract: The invention provides a mould for making and holding a working model of a jaw impression for use in the manufacture of dental prostheses. The mould has removable retaining elements connected to it for holding the working model in the mould and an arched internal wall arranged at a distance from the outer wall of the mould. The mould base has ribs for retaining the working model arranged between the outer wall and the internal wall of the mould and a hollow projection with an easily rupturable floor extending into the interior of the mould.
    Type: Grant
    Filed: August 1, 1977
    Date of Patent: October 10, 1978
    Inventor: Gerd Haker
  • Mould for making and holding working models for the manufacture of dental prostheses
    Patent number: 4022419
    Abstract: A mould for making and holding a model used to make false teeth has a base part having internally ribbed outwardly inclined sidewalls and retaining means for holding a model in the base. The ribs enable the model to be repositioned exactly in the mould even if after manufacture the model has been sawn into several pieces.
    Type: Grant
    Filed: August 21, 1975
    Date of Patent: May 10, 1977
    Inventor: Gerd Haker
  • Artificial teeth and method of manufacturing a denture
    Patent number: 3947963
    Abstract: This disclosure is directed to a method of manufacturing an artificial denture, such as a molar or molars having cusps and occlusal relief therebetween by providing a base surface which is generally planar and flat, providing cones each having a base and apex, securing the base of each cone upon the base surface, and covering the cones with dental material such that cusps are formed by the apices of the cones and occlusal relief is formed between the apices.
    Type: Grant
    Filed: March 31, 1975
    Date of Patent: April 6, 1976
    Assignee: Vita Zahnfabrik H. Rauter KG
    Inventor: Gerd Haker