Patents by Inventor Paul J. Crabtree

Paul J. Crabtree 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 composition providing rinse cycle suds control containing a soap, a quaternary ammonium salt and a silicone
    Patent number: 4686060
    Abstract: Detergent compositions comprising surfactant, at least one detergency builder, and a plurality of rinse cycle suds control prills comprising fatty acid soap, quaternary ammonium salt, and silicone fluid suds suppressor. The granular detergent compositions of this invention provide control of the level of suds on the surface of the water during the rinse cycle without interfering with the level of suds on the surface of the water during the wash cycle of laundering operations.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: August 11, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Paul J. Crabtree, Kazuhiko Imakawa
  • Detergent composition providing rinse cycle suds and turbidity control containing a soap, quaternary ammonium salt and a silicone
    Patent number: 4637890
    Abstract: Detergent compositions comprising surfactant, at least one soluble detergency builder, and a plurality of rinse cycle suds control prills comprising fatty acid soap, quaternary ammonium salt, and silicone fluid suds suppressor. The granular detergent compositions of this invention provide control of the level of suds on the surface of the water and reduce the turbidity of the water during the rinse cycle without interfering with the level of suds on the surface of the water during the wash cycle of laundering operations.
    Type: Grant
    Filed: January 23, 1986
    Date of Patent: January 20, 1987
    Assignee: The Procter & Gamble Company
    Inventors: Paul J. Crabtree, Kazuhiko Imakawa