Patents by Inventor Charles L. Stearns

Charles L. Stearns 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).

  • Patent number: 5565420
    Abstract: A granular detergent composition having improved solubility or dispersability in laundering solutions is provided. The detergent composition contains especially selected amounts of detergent composition ingredients including: (a) from about 5% to about 20% by weight of a C.sub.12-14 linear alkylbenzene sulfonate surfactant; (b) from about 5% to about 20% by weight of a C.sub.14-15 alkyl sulfate surfactant; (c) from about 0.1% to about 10% by weight of a C.sub.14-15 alkyl ethoxylated sulfate surfactant having an average degree of ethoxylation of from about 1 to 9; (d) from about 0.1% to about 5% by weight of polyethylene glycol; (e) from about 0.1% to about 5% by weight of polyacrylate; (f) from about 10% to about 35% by weight of aluminosilicate builder; (g) from about 10% to about 35% by weight of sodium carbonate; and (h) from about 0.1% to about 5% by weight of a C.sub.10-14 fatty alcohol.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: October 15, 1996
    Assignee: The Procter & Gamble Company
    Inventor: Charles L. Stearns
  • Patent number: 5080848
    Abstract: The present invention relates to an energy saving process for preparing concentrated or condensed surfactant granules. High active surfactant paste is chilled and granulated using fine dispersion mixing. The product surprisingly provides discrete, uniform (200-2,000 micron) granular particles. The granules of the present invention are preferably pure surfactant to be used as an intermediate in a final detergent formulation.
    Type: Grant
    Filed: December 22, 1988
    Date of Patent: January 14, 1992
    Assignee: The Proctor & Gamble Company
    Inventors: Daniel L. Strauss, Charles L. Stearns
  • Patent number: 4925585
    Abstract: The present invention relates to an energy saving process for preparing condensed detergent granules. Dry detergent builders and a high active surfactant paste are finely dispersed into a uniform dough. The dough is chilled and granulated using fine dispersion mixing to surprisingly provide discrete, uniform (300-1200 micron) free flowing, granular particles. The granules of the present invention are preferably formulated to be fully formulated.
    Type: Grant
    Filed: June 29, 1988
    Date of Patent: May 15, 1990
    Assignee: The Procter & Gamble Company
    Inventors: Daniel L. Strauss, Thomas H. Taylor, Charles L. Stearns, Thomas E. Lobaugh