Patents by Inventor Johanna Elizabeth Kahn

Johanna Elizabeth Kahn 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).

  • Aqueous liquid detergent compositions comprising an effervescent system
    Patent number: 6699828
    Abstract: Aqueous liquid detergent compositions containing a peracid and an effervesent system, wherein the effervescent system includes a first effervescent agent-containing component and a second acid agent-containing component, and the effervescent agent-containing component and the acid agent-containing component are chemically and/or physically separated from one another until effervescence is desired. Methods of laundering fabrics with such compositions.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: March 2, 2004
    Assignee: The Procter & Gamble Company
    Inventors: Francesco de Buzzaccarini, Karel Jozef Maria Depoot, Michel Bouvier, LeeAnn Luipold, Johanna Elizabeth Kahn