Patents by Inventor Roy C. Mast

Roy C. Mast 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).

  • Detergent plus softener with imidazoline ingredient
    Patent number: 4770815
    Abstract: Disclosed are detergent compositions containing an imidazoline component. These detergent compositions provide excellent cleaning as well as fabric care benefits. The imidazoline component consists of particles having an average particle diameter of from about 20 to about 200 microns. These granular detergent compositions may optionally contain clay materials, detergent builders, chelating agents, and/or peroxygen bleaching agents.
    Type: Grant
    Filed: October 24, 1986
    Date of Patent: September 13, 1988
    Assignee: The Procter & Gamble Company
    Inventors: Ellen S. Baker, Roy C. Mast, Frederick A. Hartman, James R. Tucker