Patents Assigned to Andreas J. Bittner
  • OXIDATION DYES
    Publication number: 20010005914
    Abstract: The invention relates to oxidation colorants which are particularly suitable for coloring keratin fiber and to a method of coloring such fiber.
    Type: Application
    Filed: December 8, 1999
    Publication date: July 5, 2001
    Applicant: Andreas J. Bittner
    Inventors: ANDREAS J. BITTNER, ASTRID KLEEN