Patents by Inventor Liane Stahle

Liane Stahle 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).

  • Composition for the strengthening of the hairdo and the care of hair
    Patent number: 5037632
    Abstract: An agent for setting and caring for the hair, is based on a synergistic combination of (a) 0.1 to 10 percent by weight of a cationic copolymer of vinylimidazolium methochloride and vinylpyrrolidone as a quarternized copolymer of the vinylpyrrolidone and (b) 0.1 to 5.0 percent by weight of tetraoxyethylene laurylether.
    Type: Grant
    Filed: August 23, 1989
    Date of Patent: August 6, 1991
    Assignee: Wella Aktiengesellschaft
    Inventors: Paul Gross, Hildegard Henze, Gunther Lang, Harald Wendel, Liane Stahle