Patents by Inventor Dhimoy Roy

Dhimoy Roy 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: 11938205
    Abstract: The present invention relates to a hair cosmetic composition, especially for washing and/or conditioning hair, comprising surfactants and an oil-in-water emulsion that comprises: a silicone mixture comprising a trialkylsilyl terminated dialkylpolysiloxane and an amino silicone; a mixture of emulsifiers comprising one or more nonionic emulsifier, wherein the mixture of emulsifiers has a HLB value from 10 to 16; and water. The invention also relates to a process for the cosmetic treatment of hair, preferably for washing and/or conditioning hair, using this composition.
    Type: Grant
    Filed: October 14, 2022
    Date of Patent: March 26, 2024
    Assignee: L'Oreal
    Inventors: Dhimoy Roy, Maxime Deboni, Sarish Joshi
  • Patent number: 11672743
    Abstract: The present invention relates to a composition for treating keratin fibers, preferably hair, comprising: (a) at least one direct dye; (b) at least one oil; (c) at least one polyol; and (d) water, wherein the amount of the (a) direct dye(s) in the composition is 0.01% by weight or more relative to the total weight of the composition, and the amount of the (b) oil(s) in the composition is 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the composition, provided that the (b) oil comprises at least one silicone oil. The composition according to the present invention is stable and can be used for coloring keratin fibers, in particular for the maintenance of the color of the keratin fibers, while providing the keratin fibers with smoothness and alignment.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: June 13, 2023
    Assignee: L'OREAL
    Inventors: Ayu Inoue, Hayato Nishimura, Kazumitsu Kawakami, Celine Bossard, Dhimoy Roy
  • Publication number: 20230092399
    Abstract: The present invention relates to a hair cosmetic composition, especially for washing and/or conditioning hair, comprising surfactants and an oil-in-water emulsion that comprises: a silicone mixture comprising a trialkylsilyl terminated dialkylpolysiloxane and an amino silicone; a mixture of emulsifiers comprising one or more nonionic emulsifier, wherein the mixture of emulsifiers has a HLB value from 10 to 16; and water. The invention also relates to a process for the cosmetic treatment of hair, preferably for washing and/or conditioning hair, using this composition.
    Type: Application
    Filed: October 14, 2022
    Publication date: March 23, 2023
    Applicant: L'Oreal
    Inventors: Dhimoy Roy, Maxime Deboni, Sarish Joshi
  • Patent number: 11590062
    Abstract: The present invention relates to a hair cosmetic composition, especially for washing and/or conditioning hair, comprising surfactants and an oil-in-water emulsion that comprises: a silicone mixture comprising a trialkylsilyl terminated dialkylpolysiloxane and an amino silicone; a mixture of emulsifiers comprising one or more nonionic emulsifier, wherein the mixture of emulsifiers has a HLB value from 10 to 16; and water. The invention also relates to a process for the cosmetic treatment of hair, preferably for washing and/or conditioning hair, using this composition.
    Type: Grant
    Filed: December 20, 2016
    Date of Patent: February 28, 2023
    Assignee: L'Oreal
    Inventors: Dhimoy Roy, Maxime Deboni, Sarish Joshi
  • Patent number: 11540992
    Abstract: The present invention relates to a process for coloring keratin fibers, preferably hair, comprising the steps of: (i) applying onto the keratin fibers a composition comprising (a) at least one compound chosen from alkylaminosulfonic acids and those of the formula (I) and (II), (b) at least one direct dye, and (c) at least one alkaline agent; (ii) heating the keratin fibers; and (iii) optionally rinsing and/or drying the keratin fibers. The present invention can provide superior coloring efficiency, such as color intensity and color lastingness.
    Type: Grant
    Filed: August 13, 2019
    Date of Patent: January 3, 2023
    Assignee: L'OREAL
    Inventors: Tomotaka Michitsuji, Celine Bossard, Dhimoy Roy, Maxime De Boni
  • Patent number: 11246824
    Abstract: The present invention relates to a composition comprising one or more cationic surfactants, one or more amphoteric or zwitterionic surfactants, one or more silicones, one or more cationic polymers, one or more fatty alcohols and one or more clays. The invention also relates to a cosmetic process for washing keratin fibres using this composition. Finally, the invention relates to the use of such a composition for washing keratin fibres.
    Type: Grant
    Filed: July 4, 2017
    Date of Patent: February 15, 2022
    Assignee: L'Oreal
    Inventors: Dhimoy Roy, Maxime De Boni, Lakshay Mohindroo
  • Publication number: 20220015997
    Abstract: The present invention relates to a composition for treating keratin fibers, preferably hair, comprising: (a) at least one direct dye; (b) at least one oil; (c) at least one polyol; and (d) water, wherein the amount of the (a) direct dye(s) in the composition is 0.01% by weight or more relative to the total weight of the composition, and the amount of the (b) oil(s) in the composition is 20% by weight or more, preferably 30% by weight or more, and more preferably 40% by weight or more, relative to the total weight of the composition, provided that the (b) oil comprises at least one silicone oil. The composition according to the present invention is stable and can be used for coloring keratin fibers, in particular for the maintenance of the color of the keratin fibers, while providing the keratin fibers with smoothness and alignment.
    Type: Application
    Filed: November 5, 2019
    Publication date: January 20, 2022
    Inventors: Ayu INOUE, Hayato NISHIMURA, Kazumitsu KAWAKAMI, Celine BOSSARD, Dhimoy ROY
  • Publication number: 20210378943
    Abstract: The present invention relates to a composition for treating keratin fibers, preferably hair, comprising (a) tartaric acid, (b) at least one aromatic alcohol, (c) at least one organopolysiloxane selected from polydialkylsiloxane, polydiarylsiloxane, and polyalkylarylsiloxane, and (d) at least one amino-modified silicone.
    Type: Application
    Filed: October 11, 2019
    Publication date: December 9, 2021
    Inventors: Isaac Eng Ting LEE, Stephanie VALENTINA, Dhimoy ROY, Richard FERGUSON, Kazumitsu KAWAKAMI
  • Publication number: 20210369581
    Abstract: The present invention relates to a process for coloring keratin fibers, preferably hair, comprising the steps of: (i) applying onto the keratin fibers a composition comprising (a) at least one compound chosen from alkylaminosulfonic acids and those of the formula (I) and (II), (b) at least one direct dye, and (c) at least one alkaline agent; (ii) heating the keratin fibers; and (iii) optionally rinsing and/or drying the keratin fibers. The present invention can provide superior coloring efficiency, such as color intensity and color lastingness.
    Type: Application
    Filed: August 13, 2019
    Publication date: December 2, 2021
    Inventors: Tomotaka MICHITSUJI, Celine BOSSARD, Dhimoy ROY, Maxime DE BONI
  • Publication number: 20200268621
    Abstract: The present invention relates to a hair cosmetic composition, especially for washing and/or conditioning hair, comprising surfactants and an oil-in-water emulsion that comprises: a silicone mixture comprising a trialkylsilyl terminated dialkylpolysiloxane and an amino silicone; a mixture of emulsifiers comprising one or more nonionic emulsifier, wherein the mixture of emulsifiers has a HLB value from 10 to 16; and water. The invention also relates to a process for the cosmetic treatment of hair, preferably for washing and/or conditioning hair, using this composition.
    Type: Application
    Filed: December 20, 2016
    Publication date: August 27, 2020
    Applicant: L'Oreal
    Inventors: Dhimoy Roy, Maxime Debont, Sarish Joshi
  • Publication number: 20190307669
    Abstract: The present invention relates to a composition comprising one or more cationic surfactants, one or more amphoteric or zwitterionic surfactants, one or more silicones, one or more cationic polymers, one or more fatty alcohols and one or more clays. The invention also relates to a cosmetic process for washing keratin fibres using this composition. Finally, the invention relates to the use of such a composition for washing keratin fibres.
    Type: Application
    Filed: July 4, 2017
    Publication date: October 10, 2019
    Applicant: L'Oreal
    Inventors: Dhimoy Roy, Maxime De Boni, Lakshay Mohindroo