Patents by Inventor Hubert Gaston-Breton

Hubert Gaston-Breton 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).

  • 2,6-Dimethyl-4-substituted amino phenol couplers
    Patent number: 4035422
    Abstract: Oxidation dye coupling compound, for use in dyeing live human hair, having the formula: ##STR1## wherein R is lower alkyl having 1-6 carbon atoms, hydroxyalkyl having 1-6 carbon atoms, acetyl, propionyl, amino alkyl wherein the alkyl moiety has 1-6 carbon atoms, N-dialkylated amino alkyl wherein each of the alkyl moieties has 1-6 carbon atoms and carbamyl methyl.
    Type: Grant
    Filed: November 19, 1975
    Date of Patent: July 12, 1977
    Assignee: L'Oreal
    Inventors: Gregoire Kalopissis, Andree Bugaut, Hubert Gaston-Breton
  • N-Thioureido and N-ureido phenylene diamines and method of preparing same
    Patent number: 4008272
    Abstract: Dye compositions containing the oxidation dye: ##STR1## and the method of using it to dye live human hair.
    Type: Grant
    Filed: May 16, 1975
    Date of Patent: February 15, 1977
    Assignee: Societe Anonyme dite: L'Oreal
    Inventors: Gregoire Kalopissis, Jean Gascon, Andree Bugaut, Jacqueline Gallien, Hubert Gaston-Breton