Patents Represented by Attorney Gretchen B. Hatfield

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  • Liquid automatic dishwashing compositions having enhanced stability
    Patent number: 5130043
    Abstract: Thickened aqueous automatic dishwashing detergent compositions comprising polycarboxylate polymers and phosphate esters having enhanced stability and cohesiveness.
    Type: Grant
    Filed: May 9, 1990
    Date of Patent: July 14, 1992
    Assignee: The Procter & Gamble Company
    Inventors: Mark J. Prince, Thomas H. Glassco
  • Liquid automatic dishwashing detergent compositions containing bleach-stable nonionic surfactant
    Patent number: 4988452
    Abstract: Thickened aqueous automatic dishwashing detergent compositions comprising certain bleach-stable capped polyalkylene oxide block copolymer nonionic surfactants.
    Type: Grant
    Filed: June 9, 1988
    Date of Patent: January 29, 1991
    Assignee: The Procter & Gamble Company
    Inventors: George C. Kinstedt, Sherri L. Myers