Patents by Inventor Paul C. Frost

Paul C. Frost 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).

  • Architectural lead treatment
    Patent number: 5076842
    Abstract: A liquid composition for the surface treatment of architectural lead includes at least 10% by weight based on the total weight, of the composition, of an alkyd resin; a solvent for the alkyd resin; and from 1 to 10% by weight, based on the total weight of the composition of a phosphate ester of a phenol ethoxylate in acid or salt form.
    Type: Grant
    Filed: June 1, 1990
    Date of Patent: December 31, 1991
    Assignee: Cookson Group plc
    Inventors: Paul C. Frost, Rakesh K. Kochhar