Patents by Inventor Peter Stroncik

Peter Stroncik 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).

  • Quartz-free powdered magmatic nepheline rock material for the surface treatment of dental parts, especially grinding, polishing and/or blasting material
    Patent number: 5380356
    Abstract: The invention is directed to the creation of a material which does not have the hazardous properties of prior art materials containing quartz. In the material according to the invention, quartz is replaced with a quartz-free magmatic rock, especially nepheline syenite. Surprisingly, the magmatic rock in powdered form attains nearly the same treatment results as conventional materials which contain quartz. The material according to the invention is particularly suitable for polishing and blasting dental parts, especially those parts which are made of plastic material.
    Type: Grant
    Filed: September 8, 1992
    Date of Patent: January 10, 1995
    Assignee: BEGO Bremer Goldschlagerei Wilh. Herbst GmbH & Co.
    Inventors: Hans-Werner Gundlach, Peter Stroncik