Patents by Inventor M. H. Polz

M. H. Polz 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 applying opaque dental ceramic material to a metal structure
    Patent number: 4879136
    Abstract: A method of building a dental appliance and a kit for use in the method are provided. In the method, metal copings are coated with an opaque ceramic paste, and a coarse ceramic powder, having structural stability under the conditions needed to fire the ceramic paste, is dusted on the coating of ceramic paste, and the coping is fired. A coated metal coping with a rough, sandpaper like surface is produced, and subsequent layers of ceramic paste are applied to the rough surface to build up the dental appliance. The kit of the invention provides at least one preformed opaque ceramic paste, dusting powders, and other ingredients needed to build a dental appliance.
    Type: Grant
    Filed: October 15, 1987
    Date of Patent: November 7, 1989
    Assignee: Dentsply G.m.b.H.
    Inventor: M. H. Polz