Patents by Inventor Ly-Lan Nguyen

Ly-Lan Nguyen 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).

  • Publication number: 20180228718
    Abstract: Cosmetic composition comprising a cationic surfactant, a fatty alcohol and two nonionic polymers The invention relates to a composition for the cosmetic treatment of keratin materials, in particular human keratin fibres such as the hair, comprising one or more cationic surfactants, one or more fatty alcohols, one or more nonionic non-associative cellulose-based polymers and one or more nonionic associative polymers. The invention also relates to a cosmetic treatment process using this composition.
    Type: Application
    Filed: August 3, 2016
    Publication date: August 16, 2018
    Inventors: Ly-Lan NGUYEN, Emilie SURAULT
  • Patent number: 7488470
    Abstract: A two-stage treatment process suitable for the permanent deformation and/or shaping of keratinous substances and, in particular, the hair includes the application of a reducing composition containing, in addition to a reducing agent, an organic absorbing agent followed, after an optional rinsing, by the application of a neutralizing composition and by the rinsing of the keratinous substances thus treated.
    Type: Grant
    Filed: September 17, 2001
    Date of Patent: February 10, 2009
    Assignee: L'Oreal
    Inventors: Ly-Lan Nguyen, Anne Sabbagh, Priscilla Devin-Baudoin
  • Publication number: 20060165633
    Abstract: The invention concerns a method for the permanent setting of keratin fibres and in particular hair, characterised in that it consists in: applying on the keratin fibres a composition reducing keratin, with adhesive capacity less than 15 g and a viscosity ranging between 0 and 2500 mpa's at a laminar flow rate of 100 s?1 and setting them; after sufficient setting time for reducing keratin, applying an oxidising composition, without intermediate rinsing of the fibres; rinsing after sufficient time for fixing the set fibres and reduced fibres in permanent setting; rinsing with water.
    Type: Application
    Filed: August 12, 2002
    Publication date: July 27, 2006
    Inventors: Ly-Lan Nguyen, Anne Sabbach
  • Patent number: 6479042
    Abstract: The invention concerns an agent for use as reducing agent in a method for permanent hair setting, comprising: a first constituent consisting of a powder composition, comprising at least an agent for reducing solid keratin or adsorbed on a solid; a second constituent consisting of aqueous liquid composition not containing a keratin reducing agent, the different constituents designed to be mixed with each other when used to obtain a reducing composition designed to be applied on the hair for reducing the sulphur bonds thereof.
    Type: Grant
    Filed: April 25, 2000
    Date of Patent: November 12, 2002
    Assignee: L'Oreal
    Inventors: Ly-Lan Nguyen, Anne Sabbagh
  • Publication number: 20020127194
    Abstract: A subject-matter of the invention is a two-stage treatment process suitable for the permanent deformation and/or shaping of keratinous substances and in particular the hair comprising the application of a reducing composition comprising, in addition to a reducing agent, an organic absorbing agent, followed, after an optional rinsing, by the application of a neutralizing composition and by rinsing of the keratinous substances thus treated.
    Type: Application
    Filed: September 17, 2001
    Publication date: September 12, 2002
    Inventors: Ly-Lan Nguyen, Anne Sabbagh, Priscille Devin-Baudoin
  • Patent number: 6238658
    Abstract: The invention relates to an oxidizing agent for use in a process for permanently reshaping the hair, this agent comprising: a first component comprising a composition containing at least one oxidizing agent in aqueous medium, a second component comprising a composition containing one thickening polymer in aqueous medium, as an aqueous or oily dispersion or as a reverse emulsion, with the proviso that said thickening polymer is not quaternary hydroxyethylcellulose; the first and the second component are mixed with each other at the time of use in order to obtain a ready-to-use oxidizing composition to be applied to the hair in order to reform the hair's disulfide linkages.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: May 29, 2001
    Assignee: L'Oreal S.A.
    Inventors: Ly-Lan Nguyen, Anne Sabbagh
  • Patent number: 6187302
    Abstract: The invention relates to a reducing agent intended to be used in a process for permanently reshaping the hair, this agent comprising: a first component comprising at least one thiol-bearing reducing agent in aqueous medium, and a second component comprising at least one thickening polymer in aqueous medium, said thickening polymer being in the form of an aqueous dispersion, an oily dispersion, or a reverse emulsion, with the proviso that said thickening polymer is not vinylpyrollidone-styrol, carboxymethylcellulose, acrylic acid homopolymers, quaternary hydroxyethylcellulose, and cross-linked polymers of polymethacrylic acid; wherein the first and second components are to be mixed with each other at the time of initiating the permanently reshaping of the hair to obtain a ready-to-use reducing composition.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: February 13, 2001
    Assignee: L'Oreal S.A.
    Inventors: Ly-Lan Nguyen, Anne Sabbagh