Patents by Inventor Franco Jose Rosato

Franco Jose Rosato 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).

  • 3-aminophenol derivatives and dyes that contain these compounds while serving to dye keratin fibers
    Patent number: 7132001
    Abstract: The object of the present patent application are 3-aminophenol derivatives of formula (I) or the physiologically compatible, water-soluble salts thereof and colorants based on a developer-coupler combination containing these compounds.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: November 7, 2006
    Assignee: Wella AG
    Inventors: Gisela Umbricht, Franco Jose Rosato, Hans-Juergen Braun
  • 3-Aminophenol derivatives substituted in the 2-position, and dyes containing these compounds
    Patent number: 7033401
    Abstract: The 3-aminophenol derivatives of formula (I), or the physiologically compatible, water-soluble salts thereof: wherein R1 represents a group of formula (II) or a group of formula (III): are useful as couplers in hair colorants. Agents for dyeing keratin fibers, especially hair, based on a developer-coupler combination containing these compounds and methods of dyeing using these agents are described.
    Type: Grant
    Filed: January 8, 2003
    Date of Patent: April 25, 2006
    Assignee: Wella AG
    Inventors: Gisela Umbricht, Franco Jose Rosato, Hans-Juergen Braun
  • 3-Aminophenol derivatives and dyes that contain these compounds while serving to dye keratin fibers
    Publication number: 20040231064
    Abstract: The object of the present patent application are 3-aminophenol derivatives of formula (I) or the physiologically compatible, water-soluble salts thereof 1
    Type: Application
    Filed: February 24, 2004
    Publication date: November 25, 2004
    Inventors: Gisela Umbricht, Franco Jose Rosato, Hans-Juergen Braun
  • 3-Aminophenol derivatives substituted in the 2-position, and dyes containing these compounds
    Publication number: 20040147515
    Abstract: The object of the present patent application are 3-aminophenol derivatives of formula (I) or the physiologically compatible, water-soluble salts thereof 1
    Type: Application
    Filed: November 24, 2003
    Publication date: July 29, 2004
    Inventors: Gisela Umbricht, Franco Jose Rosato, Hans-Juergen Braun