Patents by Inventor Maria Dalko

Maria Dalko 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: 11691937
    Abstract: The present invention relates to the use, in a cosmetic, dermatological or pharmaceutical composition, of at least one compound of formula (I): in which: R2 represents a hydrogen atom or a methyl or ethyl radical; R3 represents a linear C1-C12 alkyl radical, optionally substituted with a hydroxyl group; or a linear C2-C12 alkenyl radical, optionally substituted with a hydroxyl group; as a preserving agent. The invention also relates to certain novel compounds and to the cosmetic, dermatological or pharmaceutical compositions comprising them.
    Type: Grant
    Filed: June 6, 2016
    Date of Patent: July 4, 2023
    Assignee: L'OREAL
    Inventor: Maria Dalko
  • Patent number: 11654096
    Abstract: The present invention relates to the use of a compound of formula (I): in which R1, R2 and R3 independently denote: —a group of formula (II), or —a hydrogen atom H, it being understood that at least one of the radicals R1, R2, R3 denotes a group of formula (II); and also the salts thereof, the solvates thereof, and/or the isomers thereof, for preventing and/or cosmetically treating the signs of skin aging.
    Type: Grant
    Filed: December 20, 2018
    Date of Patent: May 23, 2023
    Assignee: L'OREAL
    Inventors: Xavier Marat, Maria Dalko
  • Patent number: 11602496
    Abstract: The present invention relates to the cosmetic use of at least one compound of general formula (I): in which: R1 represents a methyl or ethyl radical; R2 represents a hydrogen atom or a methyl or ethyl radical; R3 represents a linear C1-C6 or branched C3-C6 alkyl radical, or a linear C2-C6 or branched C3-C6 alkenyl radical; and X represents ?O or —OH, as an agent for reducing and/or delaying the signs of skin ageing.
    Type: Grant
    Filed: February 12, 2018
    Date of Patent: March 14, 2023
    Assignee: L'OREAL
    Inventors: Maria Dalko, Sophie Saussay
  • Patent number: 11420960
    Abstract: The present invention relates to the cosmetic use, as moisturizer for keratin materials, preferably the skin, of one or more 5-oxazolidine-2,4-dione C-glycoside derivatives corresponding to formula (I) below, and also the solvates and/or the isomers (optical, geometric, tautomers) thereof and/or the salts thereof: (I)
    Type: Grant
    Filed: June 19, 2019
    Date of Patent: August 23, 2022
    Assignee: L'OREAL
    Inventors: Maria Dalko, Amélie Prevot-Gueguiniat, Marie-céline Frantz, Sébastien Dropsit
  • Patent number: 11306051
    Abstract: The present invention relates to the use, in a cosmetic, dermatological or pharmaceutical composition, of at least one compound of formula (I): in which: R2 represents a hydrogen atom or a methyl or ethyl radical; R3 represents a linear C1-C12 alkyl radical, optionally substituted with a hydroxyl group; or a linear C2-C12 alkenyl radical, optionally substituted with a hydroxyl group; as a preserving agent. The invention also relates to certain novel compounds and to the cosmetic, dermatological or pharmaceutical compositions comprising them.
    Type: Grant
    Filed: June 5, 2020
    Date of Patent: April 19, 2022
    Assignee: L'OREAL
    Inventor: Maria Dalko
  • Patent number: 11253455
    Abstract: A subject matter of the present invention is the cosmetic use of at least one compound of formula (I): in which: (II) denotes a divalent radical chosen from a carbon-carbon single bond *—CH2—CH2—* or double bond *—CH?CH—*, of Z or E configuration or their mixtures, b=0 or 1, c=0 or 1, d=0, 1 or 2, and R and R? independently denote a hydrogen atom, a linear C1-C6 alkyl radical or a branched C3-C6 alkyl radical, to treat and/or prevent signs of aging and/or of photoaging of keratinous substances, preferably of the skin, and/or to depigment, lighten and/or whiten keratinous substances, preferably the skin. The present invention also relates to novel compounds and to a corresponding cosmetic method.
    Type: Grant
    Filed: March 31, 2017
    Date of Patent: February 22, 2022
    Assignee: L'ORÉAL
    Inventors: Julien Hitce, Maria Dalko
  • Patent number: 11166895
    Abstract: The instant disclosure relates hair care compositions comprising ionic liquids or ionic mixtures. Ionic liquids or ionic mixtures are combined with a cosmetically acceptable carrier to form ready-to-use hair care compositions. The ionic liquids and the ionic mixtures are formed from; (1) thiolactic acid and/or one or more alkali metal or alkaline earth metal salts thereof; and (2) one or more amine compounds, and/or one or more ammonium cationic compounds, and/or one or more salts thereof. The ionic liquids, the ionic mixtures, and the hair care compositions comprising the ionic liquids or the ionic mixtures, are useful in methods for preventing hair damage, shaping hair, caring for hair, etc.
    Type: Grant
    Filed: October 2, 2017
    Date of Patent: November 9, 2021
    Assignee: L'OREAL
    Inventors: Ronak Rughani, Magali Moreau, Julien Hitce, Maria Dalko, Alexandre Cavezza, Christian Blaise, Robin D. Rogers, Giovanni Pietro Rachiero, Gabriela Gurau
  • Publication number: 20210276989
    Abstract: The present invention relates to the cosmetic use, as moisturizer for keratin materials, preferably the skin, of one or more 5-oxazolidine-2,4-dione C-glycoside derivatives corresponding to formula (I) below, and also the solvates and/or the isomers (optical, geometric, tautomers) thereof and/or the salts thereof: (I)
    Type: Application
    Filed: June 19, 2019
    Publication date: September 9, 2021
    Inventors: Maria DALKO, Amélie PREVOT-GUEGUINIAT, Marie-Céline FRANTZ, Sébastien DROPSIT
  • Patent number: 11058619
    Abstract: A subject matter of the present invention is the cosmetic use of at least one compound of formula (I): in which: denotes a divalent radical chosen from a carbon-carbon single bond *—CH2—CH2—* or double bond *—CH—CH—*, of Z or E configuration or their mixtures, b=0 or 1, c=0 or 1, d=0, 1 or 2, and R and R? independently denote a hydrogen atom, a linear C1-C6 alkyl radical or a branched C3-C6 alkyl radical, to treat and/or prevent signs of aging and/or of photoaging of keratinous substances, preferably of the skin, and/or to depigment, lighten and/or whiten keratinous substances, preferably the skin. The present invention also relates to novel compounds and to a corresponding cosmetic method.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: July 13, 2021
    Assignee: L'ORÉAL
    Inventors: Julien Hitce, Maria Dalko
  • Patent number: 11045411
    Abstract: The present invention relates to a process for cosmetic treatment of the skin, comprising the application to the skin of a composition comprising a compound (I) with R, R? and X as defined in the description and S* a monosaccharide or polysaccharide.
    Type: Grant
    Filed: May 9, 2016
    Date of Patent: June 29, 2021
    Assignee: L'OREAL
    Inventors: Maria Dalko, Marie-céline Frantz, Amélie Gueguiniat, Jinzhu Xu, Lisheng Mao
  • Patent number: 10995051
    Abstract: The present invention relates to compounds of formula (I): in which R1 is a hydrogen atom, a phenyl radical, or a straight or branched, saturated or unsaturated hydrocarbon radical having 1 to 8 carbon atoms.
    Type: Grant
    Filed: December 31, 2019
    Date of Patent: May 4, 2021
    Assignee: L'OREAL
    Inventors: Maria Dalko, Xavier Marat, Julien Hitce, Chao-Jun Li
  • Publication number: 20210052479
    Abstract: The present invention relates to the use of a compound of formula (I): in which R1, R2 and R3 independently denote: —a group of formula (II), or —a hydrogen atom H, it being understood that at least one of the radicals R1, R2, R3 denotes a group of formula (II); and also the salts thereof, the solvates thereof, and/or the isomers thereof, for preventing and/or cosmetically treating the signs of skin aging.
    Type: Application
    Filed: December 20, 2018
    Publication date: February 25, 2021
    Inventors: Xavier MARAT, Maria DALKO
  • Publication number: 20200299219
    Abstract: The present invention relates to the use, in a cosmetic, dermatological or pharmaceutical composition, of at least one compound of formula (I): in which: R2 represents a hydrogen atom or a methyl or ethyl radical; R3 represents a linear C1-C12 alkyl radical, optionally substituted with a hydroxyl group; or a linear C2-C12 alkenyl radical, optionally substituted with a hydroxyl group; as a preserving agent. The invention also relates to certain novel compounds and to the cosmetic, dermatological or pharmaceutical compositions comprising them.
    Type: Application
    Filed: June 5, 2020
    Publication date: September 24, 2020
    Inventor: Maria DALKO
  • Publication number: 20200197275
    Abstract: A subject matter of the present invention is the cosmetic use of at least one compound of formula (I): in which: denotes a divalent radical chosen from a carbon-carbon single bond *—CH2—CH2—* or double bond *—CH—CH—*, of Z or E configuration or their mixtures, b=0 or 1, c=0 or 1, d=0, 1 or 2, and R and R? independently denote a hydrogen atom, a linear C1-C6 alkyl radical or a branched C3-C6 alkyl radical, to treat and/or prevent signs of aging and/or of photoaging of keratinous substances, preferably of the skin, and/or to depigment, lighten and/or whiten keratinous substances, preferably the skin. The present invention also relates to novel compounds and to a corresponding cosmetic method.
    Type: Application
    Filed: March 2, 2020
    Publication date: June 25, 2020
    Applicant: L'OREAL
    Inventors: Julien HITCE, Maria DALKO
  • Patent number: 10682301
    Abstract: The present invention relates to the non-therapeutic cosmetic use of derivatives of 4-(3-ethoxy-4-hydroxyphenyl)alkyl ketone of formula (I) in which: R1 represents a C1-C4 alkyl radical; R2 represents a hydrogen atom, or a saturated or unsaturated, linear or branched C1-C6 hydrocarbon-based radical; R3 represents a saturated or unsaturated, linear or branched C1-C4 hydrocarbon-based radical optionally substituted by a hydroxyl group; C—X represents C?O or CH—OH; as agent for soothing the skin of the face and/or body.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: June 16, 2020
    Assignee: L'OREAL
    Inventor: Maria Dalko
  • Patent number: 10654788
    Abstract: The present invention relates to compounds of formula (I): in which R1 is a hydrogen atom, a phenyl radical, or a straight or branched, saturated or unsaturated hydrocarbon radical having 1 to 8 carbon atoms.
    Type: Grant
    Filed: March 14, 2016
    Date of Patent: May 19, 2020
    Assignee: L'OREAL
    Inventors: Maria Dalko, Xavier Marat, Julien Hitce, Chao-Jun Li
  • Publication number: 20200131108
    Abstract: The present invention relates to compounds of formula (I): in which R1 is a hydrogen atom, a phenyl radical, or a straight or branched, saturated or unsaturated hydrocarbon radical having 1 to 8 carbon atoms.
    Type: Application
    Filed: December 31, 2019
    Publication date: April 30, 2020
    Inventors: Maria DALKO, Xavier MARAT, Julien HITCE, Chao-Jun LI
  • Patent number: 10478390
    Abstract: This invention relates to the cosmetic use of at least one glycoside chosen from glycosides having the following general formula (I): Sacc-(CH2)i—X—R in order to increase the hair mass.
    Type: Grant
    Filed: October 20, 2016
    Date of Patent: November 19, 2019
    Assignee: L'OREAL
    Inventors: Sébastien Thibaut, Maria Dalko
  • Publication number: 20190263770
    Abstract: The present invention relates to a method for the cosmetic treatment of keratin materials, in particular the skin, comprising the application of a composition to the keratin materials, such as the skin, said composition comprising a compound (I), wherein R is as defined in the description and S* is a mono or polysaccharide. In particular, the invention relates to the non-therapeutic cosmetic use of at least one compound of formula (I) as an agent for whitening, lightening and/or depigmenting keratin materials, such as the skin.
    Type: Application
    Filed: November 7, 2017
    Publication date: August 29, 2019
    Inventors: Marie-céline FRANTZ, Maria DALKO
  • Patent number: 10357440
    Abstract: The present invention relates to the cosmetic use, in a composition containing a physiologically acceptable medium, of at least one compound of formula (I) in which: —R3 means a hydrogen atom or a hydroxyl radical, —R1 and R2 mean, independently of each other, a hydrogen atom, a linear or branched C1-C6 alkyl radical; a benzyl radical; a linear or branched C1-C6 alkylcarbonyl radical not conjugated with the carbonyl; or a linear or branched C1-C6 alkoxycarbonyl radical, and/or of an isomer and/or of a salt and/or of a solvate of said compound of formula (1), for preventing and/or treating the signs of ageing of the skin and its appendages.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 23, 2019
    Assignee: L'OREAL
    Inventors: Julien Hitce, Maria Dalko, Marie-Céline Frantz