Patents by Inventor Fiona Susan Williams (nee Mac Beath)

Fiona Susan Williams (nee Mac Beath) 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).

  • Detergent composition comprising acrylic acid-based polymer and amino tricarboxylic acid-based compound
    Patent number: 6165970
    Abstract: There is provided a detergent composition comprising (a) an organic polymer containing acrylic acid or its salts, having an average molecular weight of less than 15,000; and (b) an amino tricarboxylic acid or its salts or complexes or any mixture thereof exhibiting improved soil and stain removal.
    Type: Grant
    Filed: February 23, 1999
    Date of Patent: December 26, 2000
    Assignee: The Procter & Gamble Company
    Inventors: Fiona Susan Williams (nee Mac Beath), David Jonathan Kitko, Susumu Murata, Toshiko Tsunetsugu, Shuichi Tsunetsugu
  • Machine dishwashing and laundry compositions
    Patent number: 6162259
    Abstract: Detergent compositions comprising an amino tricarboxylic acid with a rapid rate of dissolution in a washing liquor exhibit a reduced tendency to leave calcium carbonate, lime soap and other deposits on substrates being cleaned. Dishwashing and laundry compositions comprising percarbonate bleach and methyl glycine diacetic acid are provided.
    Type: Grant
    Filed: May 6, 1999
    Date of Patent: December 19, 2000
    Assignee: The Procter & Gamble Company
    Inventor: Fiona Susan Williams (nee Mac Beath)