Patents by Inventor William F. Wenning

William F. Wenning 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).

  • Patent number: 3956558
    Abstract: An overglaze decalcomania is provided which includes a prefused low melting point glass flux or frit as a protective layer and is substantially resistant to both acid and alkali attack, to mechanical abrasion, and inhibits release of lead, cadmium and other toxic substances normally found in decalcomanias. The frit is comprised of increments of lead oxide, silicon dioxide, cadmium oxide and tin oxide, and optionally titanium dioxide. It can include substituents of conventional frits as well. There is also provided a method for preparing such an overglaze decalcomania.
    Type: Grant
    Filed: January 24, 1975
    Date of Patent: May 11, 1976
    Assignee: Commercial Decal, Inc.
    Inventors: Louis A. Blanco, William F. Wenning