Patents by Inventor Laurent Subra

Laurent Subra 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: 20220204776
    Abstract: The present disclosure relates to a process for preparing a Lawsonia inermis extract which is rich in Lawsone. It also relates to the extract which may be obtained by said process and to a composition comprising thereof. The disclosure also relates to a method for dying fibers, in particular keratin fibers.
    Type: Application
    Filed: June 12, 2020
    Publication date: June 30, 2022
    Applicant: PIERRE FABRE DERMO-COSMETIQUE
    Inventors: Laurent SUBRA, Jean-Marie AUTRET, Christel FIORINI-PUYBARET, Philippe JOULIA
  • Patent number: 11207265
    Abstract: The invention relates to an extract of the aerial parts of Lawsonia inermis, as well as its preparation method and the extract that can be obtained by said method. The invention also relates to a cosmetic dye composition comprising such an extract. The invention finally concerns a cosmetic method for dying keratin fibers comprising the application of such a composition.
    Type: Grant
    Filed: December 12, 2018
    Date of Patent: December 28, 2021
    Assignee: PIERRE FABRE DERMO-COSME FIQUE
    Inventors: Christel Fiorini Puybaret, Philippe Joulia, Laurent Subra
  • Publication number: 20200330365
    Abstract: The invention relates to an extract of the aerial parts of Lawsonia inermis, as well as its preparation method and the extract that can be obtained by said method. The invention also relates to a cosmetic dye composition comprising such an extract. The invention finally concerns a cosmetic method for dying keratin fibers comprising the application of such a composition.
    Type: Application
    Filed: December 12, 2018
    Publication date: October 22, 2020
    Applicant: PIERRE FABRE DERMO-COSMETIQUE
    Inventors: Christel FIORINI PUYBARET, Philippe JOULIA, Laurent SUBRA
  • Publication number: 20180250221
    Abstract: The present invention relates to the use of a cosmetic composition intended for colouring the skin, said cosmetic composition including, as an active principle, an aqueous extract of gardenia.
    Type: Application
    Filed: September 8, 2016
    Publication date: September 6, 2018
    Applicant: PIERRE FABRE MEDICAMENT
    Inventors: Hélène DUPLAN, Christel FIORINI-PUYBARET, Carine JACQUES-JAMIN, Philippe JOULIA, Laurent SUBRA
  • Patent number: 8604241
    Abstract: The present invention relates to a method for synthesizing a pharmaceutically acceptable acid addition salt of (1S, 2R)-milnacipran comprising the following successive steps: (a) reaction of phenylacetonitrile and of (R)-epichlorhydrin in the presence of a base containing an alkaline metal, followed by a basic treatment, and then by an acid treatment in order to obtain a lactone; (b) reaction of said lactone with MNEt2, wherein M represents an alkaline metal, or with NHEt2 in the presence of a Lewis acid-amine complex, in order to obtain an amide-alcohol; (c) reaction of said amide-alcohol with thionyl chloride in order to obtain a chlorinated amide; (d) reaction of said chlorinated amide with a phthalimide salt in order to obtain a phthalimide derivative; (e) hydrolysis of the phthalimide group of said phthalimide derivative in order to obtain (1S, 2R)-milnacipran, and (f) salification of (1S, 2R)-milnacipran in a suitable solvent system in the presence of a pharmaceutically acceptable acid.
    Type: Grant
    Filed: January 29, 2010
    Date of Patent: December 10, 2013
    Assignee: Pierre Fabre Medicament
    Inventors: Marc Nicolas, Paul Hellier, Catherine Diard, Laurent Subra
  • Publication number: 20110295036
    Abstract: The present invention relates to a method for synthesizing a pharmaceutically acceptable acid addition salt of (1S, 2R)-milnacipran comprising the following successive steps: (a) reaction of phenylacetonitrile and of (R)-epichlorhydrin in the presence of a base containing an alkaline metal, followed by a basic treatment, and then by an acid treatment in order to obtain a lactone; (b) reaction of said lactone with MNEt2, wherein M represents an alkaline metal, or with NHEt2 in the presence of a Lewis acid-amine complex, in order to obtain an amide-alcohol; (c) reaction of said amide-alcohol with thionyl chloride in order to obtain a chlorinated amide; (d) reaction of said chlorinated amide with a phthalimide salt in order to obtain a phthalimide derivative; (e) hydrolysis of the phthalimide group of said phthalimide derivative in order to obtain (1S, 2R)-milnacipran, and (f) salification of (1S, 2R)-milnacipran in a suitable solvent system in the presence of a pharmaceutically acceptable acid.
    Type: Application
    Filed: January 29, 2010
    Publication date: December 1, 2011
    Applicant: PIERRE FABRE MEDICAMENT
    Inventors: Marc Nicolas, Paul Hellier, Catherine Diard, Laurent Subra