Patents by Inventor Frank Russell Spencer

Frank Russell Spencer 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).

  • Aqueous coating compositions containing a polyligand solution polymer
    Patent number: 4032496
    Abstract: Aqueous compositions containing a polyligand solution polymer in which the ligand groups are carboxylic acid groups, saponified in part with ammonia and polyvalent metal ions which form complexes with ammonia.
    Type: Grant
    Filed: July 29, 1975
    Date of Patent: June 28, 1977
    Assignee: American Cyanamid Company
    Inventors: Frank Russell Spencer, Edwin Ralph Kolodny