Patents by Inventor Melanie Hitz

Melanie Hitz 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).

  • Method for coloring keratin fibers
    Patent number: 6743263
    Abstract: The present invention relates to a composition for coloring keratinaceous fibers and a method of using the same. The composition of the present invention contains (a) at least one pyrimidine derivative and (b) at least one compound selected from an m-phenylene derivative, an m-aminophenol derivative, a pyridine derivative, a resorcinol derivative, a methylenedioxybenzene derivative, or 3,4-diaminobenzoic acid or combinations thereof. The method of the present invention includes applying the coloring composition to keratin-containing fibers and subsequently rinsing the coloring composition from the fibers.
    Type: Grant
    Filed: October 31, 2001
    Date of Patent: June 1, 2004
    Assignee: Henkel Kommanditgesellschaft auf Aktien
    Inventors: Horst Hoeffkes, Doris Oberkobusch, David Rose, Melanie Hitz