Patents by Inventor Alex Junio

Alex Junio 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).

  • Processes for dyeing of keratinous fibers with compositions which contain 2-sulfurated metaphenylenediamines in combination with oxidation dye precursors
    Patent number: 5505741
    Abstract: Processes for dyeing keratinous fibers with compositions which contain at least one 2-sulphured metaphenylenediamine of formula (I) ##STR1## wherein Z is alkyl, aralkyl, monohydroxyalkyl, polyhydroxyalkyl, aryl or aminoalkyl; R.sub.1 and R.sub.2, which are the same or different, are hydrogen, alkyl, monohydroxyalkyl, polyhydroxyalkyl, monocarbamylalkyl, dialkylcarbamyl, aminoalkyl, acyl carbalkoxy, carbamyl, or monoalkylcarbamyl; R.sub.3 is hydrogen, alkyl, nitrile, amide, fluoroalkyl, or --COOR; and the corresponding acid salts, and at least one oxidation dye precursor.
    Type: Grant
    Filed: November 23, 1993
    Date of Patent: April 9, 1996
    Assignee: L'Oreal
    Inventors: Alex Junio, Alain Genet, Alain Lagrange