Patents by Inventor Julie A. Dyet

Julie A. Dyet 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: 5620952
    Abstract: Stock solutions of polyhydroxy fatty acid amide surfactants at high concentrations are characterized by their unfortunate tendency to thicken, or gel, on storage. Mild heating and the inclusion of carboxylates such as oxydisuccinate, citrate or tartrate-succinate maintain the viscosity of such solutions below about 2,000 centipoise, even at temperatures around 30.degree. C.
    Type: Grant
    Filed: March 11, 1996
    Date of Patent: April 15, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Yi-Chang Fu, Peter R. Foley, Julie A. Dyet, Peter G. Mather, Robert Mermelstein, Brian J. Roselle
  • Patent number: 5580849
    Abstract: Liquid or gel detergent compositions having improved physical stability comprise, by weight of the composition: (a) from about 3% to about 95% of anionic sulfate or sulfonate surfactant; (b) from about 3% to about 40% polyhydroxyfatty acid amide nonionic surfactant; (c) from about 0.1% to about 3% of calcium or strotium ions; (d) from 0.05% to 10% of malic or maleic acid at a molar ratio with calcium of from 0.01:1 to 10:1.
    Type: Grant
    Filed: February 28, 1995
    Date of Patent: December 3, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Julie A. Dyet, Peter R. Foley, Fiona A. Fraser, Bruce P. Murch, Kofi Ofosu-Asante, Thomas R. Rolfes, Joanna M. Clarke