Patents by Inventor Frank Cselik

Frank Cselik 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).

  • Bleach activator compositions containing an antioxidant
    Patent number: 4853143
    Abstract: Bleach activator, bleach and detergent compositions comprising:(a) a peroxyacid bleach precursor having the general formula IAc--L Iwherein Ac is the acyl moiety of an organic carboxylic acid comprising an optionally substituted, linear or branched C.sub.6 -C.sub.20 alkyl or alkenyl moiety or a C.sub.6 -C.sub.20 alkyl-substituted aryl moiety and L is a leaving group, the conjugate acid of which has a pKa in the range from 4 to 13, and(b) an antioxidant.The compositions combine excellent stability, substrate-safety, water-dispersibility, granulometry and detergency performance.
    Type: Grant
    Filed: March 16, 1988
    Date of Patent: August 1, 1989
    Assignee: The Procter & Gamble Company
    Inventors: Frederick E. Hardy, Frank Cselik, Alastair J. Pretty, Kenneth Young, Gerald Scott