Patents by Inventor Gorges Rosenbaum

Gorges Rosenbaum 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).

  • Composition and method for dyeing human hair with isatin
    Patent number: 4750908
    Abstract: The invention relates to the use of 2,3-indolinedione of formula: ##STR1## for dyeing keratinous fibres, especially human hair.
    Type: Grant
    Filed: October 16, 1986
    Date of Patent: June 14, 1988
    Assignee: L'Oreal
    Inventors: Gorges Rosenbaum, Jean Cotteret