Patents by Inventor Joanne Louise Whitaker

Joanne Louise Whitaker 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 tablet
    Patent number: 6974789
    Abstract: A detergent tablet for use in a washing machine, the tablet having one or more phases at least one of which is in the form of a compressed particulate solid comprising a) a polymeric disintegrant having a particle size distribution such that at least 90% by weight thereof has a particle size below about 0.3 mm and at least 30% by weight thereof has a particle size below about 0.2 mm; and b) a water-soluble hydrated salt having a melting point in the range from about 30° C. to about 95° C. The detergent tablets display improved dissolution, strength and long-term storage characteristics.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: December 13, 2005
    Assignee: The Procter & Gamble Company
    Inventors: Joanne Louise Whitaker, Eric Tcheou, Neil Joseph Lant, Christopher James Binder
  • Detergent tablet
    Patent number: D447835
    Type: Grant
    Filed: November 18, 1999
    Date of Patent: September 11, 2001
    Assignee: The Procter & Gamble Company
    Inventors: Joanne Louise Whitaker, Harold Emmerson