Patents by Inventor Fiona S. MacBeath

Fiona S. MacBeath 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: 5576277
    Abstract: Granular detergent compositions of density >55 g/liter are provided comprising a plurality of particulate components, wherein one or more surfactant-containing particulate components comprise a surfactant system consisting essentially of one or more primary anionic or nonionic surfactants in intimate admixture with a water-soluble C.sub.11 -C.sub.18 alkyl ethoxysulfate salt containing an average of from one to seven ethoxy groups per mole, together with a builder system. The weight ratio of the primary anionic or nonionic surfactants or mixtures thereof to the alkyl ethoxysulfate salt is in the range from 19:1 to 2:1 provided that the level of the alkyl ethoxysulfate salt is from 0.25% to 10% by weight of the component. Improved rate of dissolution characteristics are observed for the composition and for the individual particulate components containing said surfactant system.
    Type: Grant
    Filed: September 8, 1994
    Date of Patent: November 19, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Fiona S. MacBeath, Suzanne Powell
  • Patent number: 5545346
    Abstract: There is provided a rinse aid composition containing an organo aminophosphonic acid or its salts or complexes. The pH of said composition as a 1% solution in distilled water at 20.degree. C. is preferably less than 7.
    Type: Grant
    Filed: December 6, 1994
    Date of Patent: August 13, 1996
    Assignee: The Procter & Gamble Company
    Inventors: Fiona S. MacBeath, John S. Park