Patents Examined by Ann-Marie Koss
  • Reactive dye compounds
    Patent number: 6447554
    Abstract: This invention relates to reactive dye compounds, and more especially to reactive dye compounds comprising a chromophore and a nitroen-containing heterocycle comprising at least one thio-substituent. The reactive dye compounds of the present are particularly suitable for dyeing hair.
    Type: Grant
    Filed: October 2, 2000
    Date of Patent: September 10, 2002
    Assignee: The Procter & Gamble Company
    Inventors: Earl David Brock, David Malcolm Lewis, Taher Iqbal Yousaf
  • Hair coloring kit
    Patent number: 6440175
    Abstract: The present invention entails a hair coloring kit that enables a person to mix or formulate a plurality of different hair color compositions. The kit includes a base composition or hair spray, a group of color concentrates, and a dispenser. One or more of the color concentrates is mixed with the base composition in the dispenser to form a hair coloring composition of a particular color. Thereafter, the formed hair coloring composition can be sprayed onto the hair of a person.
    Type: Grant
    Filed: June 28, 2001
    Date of Patent: August 27, 2002
    Inventor: Virgil E. Stanley, III
  • COMPOSITIONS FOR OXIDATION DYEING KERATIN FIBERS COMPRISING AT LEAST ONE OXIDATION DYE, AT LEAST ONE THICKENING POLYMER COMPRISING AT LEAST ONE FATTY CHAIN, AND AT LEAST ONE FATTY ALCOHOL COMPRISING MORE THAN TWENTY CARBON ATOMS AND USES THEREOF
    Patent number: 6436151
    Abstract: Compositions for oxidation dyeing keratin fibers, such as human keratin fibers like hair, comprising, in a dyeing medium, (1) at least one oxidation dye, (2) at least one thickening polymer comprising at least one fatty chain, and (3) at least one fatty alcohol comprising more than twenty carbon atoms. Processes comprising such oxidation dyeing compositions.
    Type: Grant
    Filed: January 2, 2001
    Date of Patent: August 20, 2002
    Assignee: L'Oreal S.A.
    Inventors: François Cottard, Christine Rondeau
  • Substituted 2-aminoalky-1,4-diaminobenzene compounds and oxidation dye precursor compositions containing same
    Patent number: 6436152
    Abstract: The oxidation hair dye precursor composition contains from 0.005 to 20.0 percent by weight of one or more coupler compounds and from 0.005 to 20.0 percent by weight of one or more developer compounds. The one or more developer compounds include at least one substituted 2-aminoalkyl-1,4-diaminobenzene compound of the formula (I): New substituted 2-aminoalkyl-1,4-diaminobenzene compounds of formula (I) are described.
    Type: Grant
    Filed: October 20, 2000
    Date of Patent: August 20, 2002
    Assignee: Wella Aktiengesellschaft
    Inventors: Laurent Chassot, Hans-Juergen Braun
  • Indole compound
    Patent number: 6407260
    Abstract: The invention relates to novel indole compounds, to their use as direct dyes in compositions intended for dyeing keratin materials and for example compositions intended for dyeing human keratin fibers and including the hair, and in cosmetic compositions intended for making up the skin, the nails and the lips, to the dye compositions or make-up compositions comprising them and to the direct dyeing process using them, and processes of manufacturing said novel indole compounds.
    Type: Grant
    Filed: September 20, 2000
    Date of Patent: June 18, 2002
    Assignee: L'Oréal S.A.
    Inventors: Nicole Bonaventure, Patrick Gilard, Gilles Barre, Michel Dubois
  • Packaged hair coloring composition
    Patent number: 6398822
    Abstract: Packaged hair coloring composition comprising a stable aqueous hair coloring composition comprising a compound of formula (I): wherein the variables are each as defined in the claims. The packaged hair coloring compositions of the present invention provide improved wash fastness of dye on hair, less color fade over time, improved consumer acceptance in terms of providing a single packaged hair dye composition and improved product stability.
    Type: Grant
    Filed: December 18, 2000
    Date of Patent: June 4, 2002
    Assignee: The Proctor & Gamble Company
    Inventors: Earl David Brock, Heather Holden Harper, Taher Iqbal Yousaf
  • Process and composition for dyeing hair utilizing zwitterionic conditioning agents
    Patent number: 6383232
    Abstract: A composition, process for preparation and use of a novel hair dyeing composition in the personal care industry. The composition when used in the dyeing process for hair results in a permanent coloration to the hair and improves manageability of the hair and minimizes damage from dyeing process. The use of zwitterionic compounds, specifically alkylmidopropyl dimethyl betaines provide unexpected penetration of the hair by the dye, unexpected oxidative stability in the dye compopsitions, and unexpected color deposition to the hair.
    Type: Grant
    Filed: February 5, 2001
    Date of Patent: May 7, 2002
    Assignee: Fan Tech LTD
    Inventors: Alan Wohlman, Anthony J. O'Lenick, Jr.