Patents by Inventor Peter M. Stastny

Peter M. Stastny 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).

  • Coating compositions and method for the treatment of metal surfaces
    Patent number: 4470853
    Abstract: An aqeuous acidic composition provides improved coating for aluminum. The composition comprises from about 10 to about 150 ppm zirconium, from about 20 to about 250 ppm fluoride, from about 30 to about 125 ppm tannin, from about 15 to about 100 ppm phosphate and from about 5 to about 50 ppm zinc, said coating solution having a tannin to phosphate ratio in the range of at least about 1:1 to about 2:1 and a pH in the range of about 2.3 to about 2.95.
    Type: Grant
    Filed: October 3, 1983
    Date of Patent: September 11, 1984
    Assignee: Coral Chemical Company
    Inventors: Narayan Das, Peter M. Stastny