Patents by Inventor Laurent Chassott

Laurent Chassott 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-hydroxy-5-amino-biphenyl-derivatives and oxidative hair colouring agents containing said compounds
    Publication number: 20020166180
    Abstract: The invention relates to an oxidative coloring agent for keratin fibers, in particular hair based on a developing agent-coupling agent combination, which contains as a developing agent at least one 2-hydroxy-5-amino-biphenyl derivative of general formula (I) in addition to novel 2-hydroxy-5-amino-biphenyl derivatives.
    Type: Application
    Filed: January 30, 2002
    Publication date: November 14, 2002
    Inventors: Laurent Chassott, Hans-Juergen Braun