Patents by Inventor Walter H. Kuhn

Walter H. Kuhn 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).

  • Process for manufacturing tooth replacements by spark erosion and device for clamping, inserting and truing plaster models or copper electrodes for the spark-erosion manufacture of tooth replacements
    Patent number: 5227602
    Abstract: A method of making a dental prosthesis by forming a model of a tooth stump, coating with a layer of electrically conductive material, galvanically plating over the conductive material with a layer of copper, exposing occlusal surfaces of the model, coating the exposed occlusal surfaces of the model with an electrically conductive material followed by a galvanic plating on the model occlusal surfaces, and separating the copper layers form each other at about the tooth equator into an occlusal mold/electrode and a stump mold/electrode. The electrodes are used in a spark erosion process to form a dental prosthesis from a solid matrix body.
    Type: Grant
    Filed: April 23, 1992
    Date of Patent: July 13, 1993
    Assignee: Krupp Medizintechnik GmbH
    Inventor: Walter H. Kuhn