Patents by Inventor Margaret P. Sissin

Margaret P. Sissin 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 fabric softening compositions
    Patent number: 4424134
    Abstract: Aqueous fabric softening compositions containing cationic softeners, amines, and certain 3-isothiazolones as antimicrobial agents are formulated at a pH below about 6 to improve the stability of the antimicrobial agent in the presence of the amine.
    Type: Grant
    Filed: June 15, 1983
    Date of Patent: January 3, 1984
    Assignee: The Procter & Gamble Company
    Inventors: Margaret P. Sissin, Richard D. Walker