Patents by Inventor Isabelle M. C. De Groote

Isabelle M. C. De Groote 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 compositions containing a peroxidase/accelerator system without linear alkylbenzenesulfonate
    Patent number: 5445755
    Abstract: Dye transfer inhibiting systems are disclosed, comprising an enzyme exhibiting peroxidase activity, a hydrogen peroxide source, an additional oxidizable substrate, and an accelerator preferably having the formula ##STR1## Detergent compositions free of linear alkylbenzenesulfonate containing the dye transfer inhibition system and typical detergent ingredients are also disclosed. More effective and efficient dye transfer inhibition of fugitive dyes is achieved by using the dye transfer inhibition system as a detergent additive or in a detergent composition matrix free of linear alkylbenzenesulfonate.
    Type: Grant
    Filed: May 31, 1994
    Date of Patent: August 29, 1995
    Assignee: The Procter & Gamble Company
    Inventors: Andre C. Convents, Alfred Busch, Isabelle M. C. De Groote, Don K. K. Liu