Patents by Inventor Heidi Brink, deceased

Heidi Brink, deceased 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).

  • Method of preparing ceramic-coated dental prosthetic constructions
    Patent number: 4358271
    Abstract: An improved method for preparing a dental prosthetic construction such as a crown or bridge is described by applying a dental ceramic composition to a base of a precious metal silver-containing alloy, drying it and firing the same. In accordance with the improvement, the firing is conducted in a reducing atmosphere.
    Type: Grant
    Filed: February 11, 1981
    Date of Patent: November 9, 1982
    Assignee: Heraeus Edelmetalle GmbH
    Inventors: Franz Sperner, Heidi Brink, deceased