Patents by Inventor William A. Cilley

William A. Cilley 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: 5612308
    Abstract: Detergent compositions comprising a surfactant system that is either (1) a mixture nonionic and zwitterionic detergent surfactants; (2) a mixture of nonionic and amphoteric (non-zwitterionic) detergent surfactants; or (3) short chain nonionic detergent surfactant, the nonionic detergent surfactants preferably being short chain and/or having peaked distribution; optional hydrophobic cleaning solvent; and polycarboxylate, especially dicarboxylate, detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5, preferably from about 2 to about 4 when the dicarboxylate builder is used. The compositions are in the form of aqueous liquids. Short chain peaked distribution nonionic detergent surfactants provide surprisingly superior sudsing characteristics.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: March 18, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Ricky A. Woo, Michel J. Carrie, William A. Cilley, Ronald A. Masters, Daniel W. Michael, Eddy Vos
  • Patent number: 5583265
    Abstract: Detergent compositions comprising a surfactant system that is either (1) a mixture nonionic and zwitterionic detergent surfactants; (2) a mixture of nonionic and amphoteric (non-zwitterionic) detergent surfactants; or (3) short chain nonionic detergent surfactant, the nonionic detergent surfactants preferably being short chain and/or having peaked distribution; optional hydrophobic cleaning solvent; and polycarboxylate, especially dicarboxylate, detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5, preferably from about 2 to about 4 when the dicarboxylate builder is used. The compositions are in the form of aqueous liquids. Short chain peaked distribution nonionic detergent surfactants provide surprisingly superior sudsing characteristics.
    Type: Grant
    Filed: June 6, 1995
    Date of Patent: December 10, 1996
    Inventors: Ricky A.-M. Woo, Michel J. Carrie, William A. Cilley, Ronald A. Masters, Daniel W. Michael, Eddy Vos
  • Patent number: 5384063
    Abstract: Detergent compositions comprising a surfactant system that is either (1) a mixture nonionic and zwitterionic detergent surfactants; (2) a mixture of nonionic and amphoteric (non-zwitterionic) detergent surfactants; or (3) short chain nonionic detergent surfactant; optional hydrophobic cleaning solvent; and polycarboxylate, especially dicarboxylate, detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5, preferably from about 2 to about 4 when the dicarboxylate builder is used. The compositions are in the form of aqueous liquids.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: January 24, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Ricky Ah-Man Woo, Michel J. Carrie, William A. Cilley, Ronald A. Masters, Daniel W. Michael, Eddy Vos
  • Patent number: 5061393
    Abstract: Detergent compositions comprising a mixture of nonionic and zwitterionic detergent surfactants; hydrophobic cleaning solvent; and polycarboxylate detergent builder provide superior cleaning of all of the soils commonly found in the bathroom. The compositions have a pH of from about 1 to about 5.5. The compositions are in the form of aqueous liquids.
    Type: Grant
    Filed: September 13, 1990
    Date of Patent: October 29, 1991
    Assignee: The Procter & Gamble Company
    Inventors: Carlos G. Linares, William A. Cilley
  • Patent number: 4933101
    Abstract: Disclosed are liquid automatic dishwashing detergent compositions containing an insoluble inorganic zinc salt useful for inhibition of glassware corrosion in the dishwasher. These compositions are particularly desirable because use of them in the dishwasher does not result in precipitation of insolubles on the dishware or dishwasher parts.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: June 12, 1990
    Assignee: The Procter & Gamble Company
    Inventors: William A. Cilley, Rodney M. Wise
  • Patent number: 4917812
    Abstract: Disclosed are granular automatic dishwashing detergent compositions containing an insoluble inorganic zinc salt useful for inhibition of glassware corrosion in the dishwasher. These compositions are particularly desirable because use of them in the dishwasher does not result in precipitation of zinc insolubles on the dishware or dishwasher parts.
    Type: Grant
    Filed: February 13, 1989
    Date of Patent: April 17, 1990
    Assignee: The Procter & Gamble Company
    Inventor: William A. Cilley
  • Patent number: 4601844
    Abstract: Granular detergent compositions suitable for use in automatic dishwashing machines are disclosed. The compositions contain detergency builder materials, a chlorine bleach component, a low-foaming nonionic surfactant compatible with the bleach and suds control components comprising an alkyl phosphate ester and a source of calcium ions.
    Type: Grant
    Filed: September 24, 1985
    Date of Patent: July 22, 1986
    Assignee: The Procter & Gamble Company
    Inventor: William A. Cilley
  • Patent number: 4301044
    Abstract: Zwitterionic surfactant compounds are made readily biodegradable in the environment by the inclusion of a biochemically and/or hydrolytically labile chemical linkage located between the cationic and anionic charge centers of the compounds and anywhere from the second to the tenth atom distant from the cationic charge center. The biodegradable linkage is preferably an ester or amide. The alkoxylated zwitterionic surfactants herein exhibit outstanding particulate soil removal performance and are also effective in removing oily soils from fabrics, in addition to being readily biodegradable. Also described are detergent compositions containing the zwitterionic surfactants, and, optionally containing cosurfactants and detergent builders.
    Type: Grant
    Filed: January 22, 1980
    Date of Patent: November 17, 1981
    Assignee: The Procter & Gamble Company
    Inventors: George E. Wentler, Joseph McGrady, Eugene P. Gosselink, William A. Cilley