Patents by Inventor Joachim-Kurt Foitzik

Joachim-Kurt Foitzik 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).

  • Dyes and colorants
    Patent number: 6828443
    Abstract: A hybrid dye is provided that is useful for coloring keratin fibers and skin. The hybrid dye has the structure X-S-Y, where X is derived from a substantive dye, Y is derived from an oxidation dye precursor or a melanin precursor, and S is a direct bond or spacer group. The present invention also provides a composition for coloring keratin fibers that contains the hybrid dye.
    Type: Grant
    Filed: June 13, 2002
    Date of Patent: December 7, 2004
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Detlef Hollenberg, Horst Hoeffkes, Frank Naumann, David Rose, Leszek J. Wolfram, Joachim-Kurt Foitzik