Patents by Inventor Hansruedi Muerner

Hansruedi Muerner 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).

  • Agents containing 4-(2-hydroxyethyl)amino-3-nitro-1-benzotrifluoride for dyeing keratin fibers
    Publication number: 20070006395
    Abstract: The composition for coloring keratin fibers contains (a) 4-(2?-hydroxyethyl)amino-3-nitro-1-trifluoromethylbenzene or a salt thereof, (b) one or more developers and (c) one or more couplers. In the method for coloring hair the colorant composition is mixed with an oxidant to form a ready-to-apply colorant and then the ready-to-apply colorant is applied to hair in an amount sufficient for the dyeing of the hair.
    Type: Application
    Filed: October 19, 2004
    Publication date: January 11, 2007
    Inventors: Hansruedi Muerner, Herbert Mager
  • Agents for oxidatively dying keratin fibers
    Patent number: 7132000
    Abstract: Agent for oxidative dyeing of keratin fibers based on developers and couplers and containing at least one aldehyde of general formula (I) or (II) as well as the use of the aldehydes of formula (I) or (II) for increasing the color intensity of oxidative colorants and/or for shortening the time of exposure to oxidative colorants.
    Type: Grant
    Filed: December 12, 2002
    Date of Patent: November 7, 2006
    Assignee: Wella AG
    Inventors: Hansruedi Muerner, Manuela Javet, Dominique Le Cruer
  • Agents for oxidatively dying keratin fibers
    Publication number: 20040187226
    Abstract: Agent for oxidative dyeing of keratin fibers based on developers and couplers and containing at least one aldehyde of general formula (I) or (II) 1
    Type: Application
    Filed: February 9, 2004
    Publication date: September 30, 2004
    Inventors: Hansruedi Muerner, Manuela Javet, Dominique Le Cruer