Patents by Inventor Didier Saint Leger

Didier Saint Leger 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).

  • Patent number: 8507006
    Abstract: Individualized porous particles having a volume-average diameter of less than or equal to 10 ?m and a specific surface area of greater than or equal to 1 m2/g, and that include at least one cosmetically or pharmaceutically active compound present at least inside the particles.
    Type: Grant
    Filed: December 5, 2011
    Date of Patent: August 13, 2013
    Assignee: L'Oreal
    Inventors: Jean-Thierry Simonnet, Bruno Biatry, Didier Saint-Leger
  • Publication number: 20120076841
    Abstract: Individualized porous particles having a volume-average diameter of less than or equal to 10 ?m and a specific surface area of greater than or equal to 1 m2/g, and that include at least one cosmetically or pharmaceutically active compound present at least inside the particles.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Applicant: L'OREAL
    Inventors: Jean-Thierry SIMONNET, Bruno Biatry, Didier Saint-Leger
  • Publication number: 20090047316
    Abstract: Individualized porous particles have a volume-average diameter of less than or equal to 10 ?m and a specific surface area of greater than or equal to 1 m2/g, and include at least one cosmetically or pharmaceutically active compound present at least inside the particles.
    Type: Application
    Filed: October 1, 2008
    Publication date: February 19, 2009
    Applicant: L'OREAL
    Inventors: Jean-Thierry Simonnet, Bruno Biatry, Didier Saint-Leger
  • Publication number: 20060035380
    Abstract: The invention relates to a process for the fake-proof marking of a product, by introducing at least one non-radioactive stable isotope of at least one atomic element, such that the content of the isotope in the product is higher than its natural content, the isotope being chosen from natural isotopes that have a natural isotopic content of less than 1.2%, and better still less than 1%.
    Type: Application
    Filed: March 11, 2005
    Publication date: February 16, 2006
    Applicant: L'OREAL
    Inventor: Didier Saint-Leger
  • Publication number: 20050281768
    Abstract: The present disclosure relates to the use of a liquid detergent composition, with a viscosity ranging from 1 mPa/s to 100 mPa/s, comprising at least 5% of at least one detergent surfactant, for cleansing curly or frizzy hair and the scalp thereof, and a method for cleansing them using said liquid detergent composition.
    Type: Application
    Filed: June 13, 2005
    Publication date: December 22, 2005
    Inventor: Didier Saint-Leger
  • Publication number: 20050211599
    Abstract: The present invention relates to a product including: i) at least one hair-treatment composition, and ii) at least a first item of information representative of at least one measurable parameter associated with the form of at least one hair from a head of hair for which said composition is suitable and/or from a head of hair likely to be obtained after applying the composition.
    Type: Application
    Filed: March 16, 2005
    Publication date: September 29, 2005
    Applicant: L'OREAL
    Inventors: Roland De La Mettrie, Didier Saint-Leger
  • Publication number: 20050031699
    Abstract: The present invention relates to individualized porous particles, characterized in that they have a volume-average diameter of less than or equal to 10 ?m and a specific surface area of greater than or equal to 1 m2/g, and in that they comprise at least one cosmetically or pharmaceutically active compound at least present inside said particles.
    Type: Application
    Filed: June 28, 2004
    Publication date: February 10, 2005
    Applicant: L'OREAL
    Inventors: Jean-Thierry Simonnet, Bruno Biatry, Didier Saint-Leger
  • Patent number: 6759051
    Abstract: The present invention consists of a cosmetic or dermatological composition comprising, in a physiologically acceptable medium: at least one alkynyl carbamate of formula (I) below:  in which: A denotes a halogen atom R denotes a hydrogen atom, an alkyl group, a hydroxyalkyl group, and at least one polyol chosen from non-etherified polyols, and (poly)alkyl or (poly)alkenyl polyol ethers; these polyols containing from 4 to 28 carbon atoms and from 2 to 6 hydroxyl functions, with the proviso that at least two of these hydroxyl functions are free; uses of these compositions and a cosmetic treatment process using these compositions.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: July 6, 2004
    Assignee: L'Oreal
    Inventor: Didier Saint-Leger
  • Publication number: 20030138390
    Abstract: The invention concerns the use of an alcohol dehydrogenase enzyme inhibitor in cosmetic treatment of keratinous materials, to prevent, attenuate and/or eliminate undesirable effects of primary alcohols at the surface layers of the skin and its appendages.
    Type: Application
    Filed: February 4, 2003
    Publication date: July 24, 2003
    Inventor: Didier Saint-Leger
  • Patent number: 6409772
    Abstract: The invention relates to the use of hydroxystilbenes for dyeing, to ready-to-use dye compositions comprising them, to a dyeing process using them and to a multi-compartment device containing the compositions used in the processes of the invention.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: June 25, 2002
    Assignee: L'Oreal
    Inventors: Francis Pruche, Didier Saint Leger, Bruno Bernard
  • Publication number: 20020016998
    Abstract: The invention relates to the use of hydroxystilbenes for dyeing, to ready-to-use dye compositions comprising them, to a dyeing process using them and to a multi-compartment device containing the compositions used in the processes of the invention.
    Type: Application
    Filed: December 21, 1999
    Publication date: February 14, 2002
    Inventors: Francis Pruche, Didier Saint Leger, Bruno Bernard
  • Publication number: 20010051169
    Abstract: The present invention consists of a cosmetic or dermatological composition comprising, in a physiologically acceptable medium:
    Type: Application
    Filed: December 2, 1999
    Publication date: December 13, 2001
    Inventor: DIDIER SAINT-LEGER
  • Patent number: 6121254
    Abstract: Dermatological/cosmetic compositions for reducing or decelerating human hair loss comprise an effective hair loss-reducing amount of combinatory immixture of (a) at least one antifungal agent and (b) at least one halogenated antibacterial agent other than a macrolide or pyranoside, characteristically formulated in a topically physiologically acceptable medium therefor.
    Type: Grant
    Filed: March 17, 1999
    Date of Patent: September 19, 2000
    Assignee: Societe L'Oreal S.A.
    Inventor: Didier Saint-Leger
  • Patent number: 5939077
    Abstract: The invention relates to a cosmetic composition comprising a mixture of ceramides, as well as to a process for treating the skin or keratin fibers that comprises applying to the skin or keratin fibers the cosmetic composition.
    Type: Grant
    Filed: February 13, 1996
    Date of Patent: August 17, 1999
    Assignee: L'Oreal
    Inventors: Didier Saint-Leger, Genevieve Kaba, Georges Hussler
  • Patent number: 5919438
    Abstract: Dermatological/cosmetic compositions for reducing or decelerating human hair loss comprise an effective hair loss-reducing amount of combinatory immixture of (a) at least one antifungal agent and (b) at least one halogenated antibacterial agent other than a macrolide or pyranoside, characteristically formulated in a topically physiologically acceptable medium therefor.
    Type: Grant
    Filed: April 15, 1997
    Date of Patent: July 6, 1999
    Assignee: Societe L'Oreal S.A.
    Inventor: Didier Saint-Leger
  • Patent number: 5650145
    Abstract: Dermatological/cosmetic compositions for reducing or decelerating human hair loss comprise an effective hair loss-reducing amount of combinatory immixture of (a) at least one antifungal agent and (b) at least one halogenated antibacterial agent other than a macrolide or pyranoside, characteristically formulated in a topically physiologically acceptable medium therefor.
    Type: Grant
    Filed: May 5, 1995
    Date of Patent: July 22, 1997
    Assignee: L'Oreal
    Inventor: Didier Saint-Leger
  • Patent number: 5262407
    Abstract: The invention relates to a composition intended for the treatment of skin aging, containing, in a physiologically acceptable medium, at least one salicylic acid derivative corresponding to the formula: ##STR1## in which: R represents a saturated aliphatic chain or an unsaturated chain bearing one or more conjugated or unconjugated double bonds, it being possible for the chains to be substituted with one or more halogen atoms as well as with trifluoromethyl groups, with one or more hydroxyl groups in free form or a form esterified by an acid, or alternatively with a carboxyl group, free or esterified by a lower alcohol; andR' represents a hydroxyl group or an ester group of formula: ##STR2## where R.sub.1 is a saturated or unsaturated aliphatic group.
    Type: Grant
    Filed: October 21, 1991
    Date of Patent: November 16, 1993
    Assignee: L'Oreal
    Inventors: Jean L. Leveque, Didier Saint Leger
  • Patent number: 5141874
    Abstract: A method for the differential coloration of skin cells and their nucleii fixed on a transparent or translucent adhesive support, involves successively immersing the cells in two baths, A and B, bath A containing methyl blue or a derivative of methyl blue and bath B containing methyl blue, and/or methylene blue and rhodamine B or a derivative of rhodamine, and then rinsing and drying the support. This method of coloration can be used in the diagnosis of inflammatory skin conditions.
    Type: Grant
    Filed: November 27, 1989
    Date of Patent: August 25, 1992
    Assignee: L'Oreal
    Inventors: Didier Saint-Leger, Anne-Marie Francois, Jean-Luc Leveque
  • Patent number: 4931467
    Abstract: This composition contains, by way of main active principle, in a pharmaceutically acceptable carrier, at least one substance belonging to the carotenoid family and chosen, in particular, from the group consisting of .alpha.-carotene, .delta.-carotene, .gamma.-carotene, .beta., .beta.-carotene-4,4'-dione, ethyl 8'-apo-.beta.-caroten-8'-oate, .beta.-apo-8'-carotenal, .psi.,.psi.-carotene, .psi.,.psi.-carotene-16,16'-diol and .psi.,.psi.-caroten-16-ol. This composition preferably contains from 0.001 to 10% by weight of active principle relative to the total weight of the composition and takes the form of a suspension, tablets or gelatin capsules. The pharmacological activity of this drug is an activity which inhibits comedo formation, the latter being due to an irritation caused by an excess of lipid oxide (oxidized squalene).
    Type: Grant
    Filed: July 11, 1985
    Date of Patent: June 5, 1990
    Assignee: L'Oreal
    Inventors: Didier Saint-Leger, Arlette Bague
  • Patent number: 4906617
    Abstract: A pharmaceutical or cosmetic composition contains as an active principle a peroxide having an aromatic radical and a saturated group and having the formula ##STR1## wherein R.sub.1 represents linear or branched alkyl having 3 to 17 carbon atoms, substituted or not by one or more halogens, interrupted or not by a carbonyl group and carrying a terminal carboxylic acid group esterified or not or R.sub.1 represents cycloalkyl having 5 to 10 carbon atoms, and R.sub.2 represents hydrogen, halogen, --CF.sub.3, methoxy, ethoxy or acyl having 2 to 16 carbon atoms.The composition is usefully employed in the treatment of various dermatoses including acne.
    Type: Grant
    Filed: September 29, 1987
    Date of Patent: March 6, 1990
    Assignee: L'Oreal
    Inventors: Bernard Jacquet, Michel Hocquaux, Didier Semeria, Didier Saint-Leger