Patents by Inventor Didier Candau

Didier Candau 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: 7416721
    Abstract: Cosmetic, notably anti-sun/sunscreen compositions having improved comfort after application onto keratin materials, e.g., human skin, contain at least one system for screening out UV radiation, and also contain: (a) at least one insoluble organic UV-screening agent, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefor.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: August 26, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7402300
    Abstract: Cosmetic, notably anti-sun/sunscreen compositions having increased sun protection effectiveness and improved distribution over keratin materials, e.g., human skin, contain at least one fatty phase and at least one system for screening out UV radiation, and also contain: (a) at least one lipophilic UV-screening agent, and (b) at least one hydroxyalkylurea compound of formula (I): in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl radical or a C2-C6 hydroxyalkyl radical containing from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, or salt, solvate or isomer thereof, formulated into (c) a topically applicable, cosmetically acceptable carrier therefor.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: July 22, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7402301
    Abstract: The invention relates to a composition comprising, in a cosmetically acceptable carrier, a system for screening out UV radiation, characterized in that it contains: (a) at least metal oxide-based mineral pigments, and (b) at least one hydroxyalkylurea of formula (I) below: in which R1, R2, R3 and R4 each independently represent a hydrogen atom, a C1-C4 alkyl group or a C2-C6 hydroxy-alkyl group that may contain from 1 to 5 hydroxyl groups, at least one of the radicals R1-R4 representing a hydroxyalkyl group, and also a salt, solvate or isomer thereof, said composition containing no kojic dipalmitate. The invention also relates to the use of a hydroxyalkylurea of formula (I) in a composition comprising, in a cosmetically acceptable carrier, at least metal oxide-based mineral pigments, for reducing, or even eliminating, the whitening effect on the keratin material after application.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: July 22, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Publication number: 20080145324
    Abstract: UV-photostable, topically applicable cosmetic/dermatological compositions contain at least one dibenzoylmethane UV-sunscreen compound and at least one photostabilizing silicon-containing s-triazine compound substituted with two aminobenzoate or aminobenzamide groups.
    Type: Application
    Filed: November 30, 2007
    Publication date: June 19, 2008
    Applicant: L'OREAL
    Inventors: Herve Richard, Didier Candau
  • Publication number: 20080138303
    Abstract: UV-photoprotective, topically applicable cosmetic/dermatological compositions contain: (a) at least one silicon-containing s-triazine substituted with two aminobenzoate or aminobenzamide groups of specific formula (I), and (b) at least one non-silicon-containing lipophilic 1,3,5-triazine compound UV-screening agent, such compositions having improved photoprotective effectiveness in the UV-B range and the 1,3,5-triazine compound(s) being improvedly soluble therein.
    Type: Application
    Filed: November 28, 2007
    Publication date: June 12, 2008
    Applicant: L'OREAL
    Inventors: Didier Candau, Herve Richard
  • Patent number: 7368105
    Abstract: Topically applicable, photostable compositions with respect to UV radiation contain at least one dibenzoylmethane UV-screening agent and at least one arylalkyl benzoate compound and at least one bis-resorcinyl triazine compound.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: May 6, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7364720
    Abstract: The present invention relates to a process for photostabilizing, with respect to UV radiation, at least one dibenzoylmethane derivative with at least one arylalkyl benzoate derivative and at least one oil containing in its structure at least one amide unit. Another subject of the invention also relates to a novel cosmetic or dermatological composition for topical use, characterized in that it comprises, in a cosmetically acceptable support: (a) at least one UV-screening agent of the dibenzoylmethane derivative type and (b) at least one arylalkyl benzoate derivative and (c) at least one oil containing in its structure at least one amide unit. The present invention also relates to the use of an arylalkyl benzoate derivative and an oil containing in its structure at least one amide unit in a cosmetic or dermatological composition comprising at least one dibenzoylmethane derivative, for the purpose of improving the stability with respect to UV rays of the said dibenzoylmethane derivative.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: April 29, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7364721
    Abstract: Topically applicable cosmetic/dermatological photoprotective compositions contain at least one dibenzoylmethane UV-screening agent, and, as a photostabilizer therefor, at least one arylalkyl benzoate compound of formula (I) or (II) below: with the proviso that: (i) the subject compositions are characteristically devoid of any octyl methoxycinnamate; and (ii) same are other than a solution of butyl methoxydibenzoylmethane in 2-phenylethyl benzoate, 2-phenylethyl o-toluate, 2-phenylethyl p-toluate or in a 2-phenylethyl o-toluate/2-phenylethyl p-toluate (1/1) mixture.
    Type: Grant
    Filed: July 5, 2005
    Date of Patent: April 29, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7357920
    Abstract: Topically applicable, improvedly photostabilized, photoprotective cosmetic/dermatological compositions contain (i) an effective UV-screening amount of at least one dibenzoylmethane sunscreen and an effective photostabilizing amount of (ii) at least one oil containing at least one amide structural unit and (iii) at least one compound accepting the excited triplet level energy of said at least one dibenzoylmethane sunscreen, formulated into (iv) a topically applicable, cosmetically/dermatologically acceptable support therefor.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: April 15, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7357919
    Abstract: Topically applicable, improvedly photostabilized, photoprotective cosmetic/dermatological compositions contain (i) an effective UV-screening amount of at least one dibenzoylmethane sunscreen and an effective photostabilizing amount of (ii) at least one arylalkyl benzoate compound and (iii) at least one compound accepting the excited triplet level energy of said at least one dibenzoylmethane sunscreen, formulated into (iv) a topically applicable, cosmetically/dermatologically acceptable support therefor.
    Type: Grant
    Filed: October 14, 2005
    Date of Patent: April 15, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Publication number: 20080019930
    Abstract: Improvedly effective and photostable sunscreen compositions combine a dibenzoylmethane screening agent and a specific arylalkyl amide or ester compound of the following formulae (I), (II) or (III):
    Type: Application
    Filed: June 25, 2007
    Publication date: January 24, 2008
    Applicant: L'OREAL
    Inventors: Didier Candau, Karine Lucet-Levannier
  • Publication number: 20080008669
    Abstract: Photostable sunscreen compositions containing at least one cinnamic acid ester UV-B filter and at least one particular s-triazine compound have improved effectiveness with respect to UV-B radiation.
    Type: Application
    Filed: February 5, 2007
    Publication date: January 10, 2008
    Applicant: L'OREAL
    Inventors: Herve Richard, Didier Candau
  • Patent number: 7316808
    Abstract: Stable UV-photoprotective, phase inverted oil-in-water emulsions, well suited for the photoprotection of the skin, lips and/or hair, the average size of the globules which constitute the oily phase thereof ranging from 100 nm to 1,000 nm, contain inorganic metal oxide nanopigments and at least one organic UV-screening agent, and which also contain at least one organic 4,4-diarylbutadiene UV-A-screening agent.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: January 8, 2008
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Patent number: 7291322
    Abstract: Topically applicable sunscreen/cosmetic compositions suited for the improved photoprotection of human skin and/or hair against the damaging effects of UV-irradiation, particularly solar radiation, comprise an effective SPF-maintaining and water remanence-enhancing amount of intimate admixture of (a) at least one benzotriazole first sunscreen compound and (b) at least one bis-resorcinyltriazine second sunscreen compound, formulated into (c) a topically applicable, cosmetically acceptable vehicle, diluent or carrier therefor.
    Type: Grant
    Filed: September 29, 2006
    Date of Patent: November 6, 2007
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Publication number: 20070218022
    Abstract: Photostable sunscreen compositions containing at least one cinnamic acid ester UV-B screening agent, at least one dibenzoylmethane compound UV-A screening agent and at least one particular s-triazine compound have improved effectiveness with respect to UV-B radiation, while maintaining the balance in UV-A/UV-B protection during exposure to the sun.
    Type: Application
    Filed: February 5, 2007
    Publication date: September 20, 2007
    Inventors: Herve Richard, Didier Candau
  • Publication number: 20070196294
    Abstract: Photostable sunscreen compositions containing at least one dibenzoylmethane compound UV-A screening agent and at least one particular s-triazine compound have improved effectiveness with respect to UV-A radiation.
    Type: Application
    Filed: February 5, 2007
    Publication date: August 23, 2007
    Applicant: L'OREAL
    Inventors: Herve Richard, Didier Candau
  • Publication number: 20070140997
    Abstract: Stable, topically applicable cosmetic/dermatological photoprotective compositions contain: a) at least one 1,3,5-triazine compound, b) at least one oil containing in its structure at least one amide structural unit, and c) at least one eutectic mixture of n-butylphthalimide and of isopropylphthalimide, and have enhanced sun protection factors and cosmetic properties.
    Type: Application
    Filed: December 28, 2006
    Publication date: June 21, 2007
    Applicant: L'OREAL
    Inventors: Didier Candau, Cecile Fiandino
  • Patent number: 7172753
    Abstract: Topically applicable, photostable cosmetic/dermatological UV-screening compositions suited for photoprotecting the skin and the hair, comprise (a) at least one UV-screening dibenzoylmethane compound, (b) at least one UV-screening 1,3,5-triazine compound that is photosensitive in the presence of a dibenzoylmethane compound, and (c) a 1,3,5-triazine photostabilizing amount of at least one 4,4-diarylbutadiene compound, formulated into a topically applicable, cosmetically/dermatologically acceptable support therefor; the weight ratio of the 4,4-diarylbutadiene compound(s) to the dibenzoylmethane compound(s) is characteristically greater than 2.5 and the subject compositions are advantageously devoid of any cinnamate sunscreen.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: February 6, 2007
    Assignee: L'Oreal
    Inventor: Didier Candau
  • Publication number: 20070020204
    Abstract: Topically applicable sunscreen/cosmetic compositions suited for the improved photoprotection of human skin and/or hair against the damaging effects of UV-irradiation, particularly solar radiation, comprise an effective SPF-maintaining and water remanence-enhancing amount of intimate admixture of (a) at least one benzotriazole first sunscreen compound and (b) at least one bis-resorcinyltriazine second sunscreen compound, formulated into (c) a topically applicable, cosmetically acceptable vehicle, diluent or carrier therefor.
    Type: Application
    Filed: September 29, 2006
    Publication date: January 25, 2007
    Applicant: SOCIETE L'OREAL, S.A.
    Inventor: Didier Candau
  • Patent number: 7166274
    Abstract: Topically applicable high SPF cosmetic/dermatological UV-screening compositions suited for the photoprotection of the skin and/or hair, comprise (a) particulates of at least one insoluble organic UV-screening agent having a particle size ranging from 10 nm to 5 ?m, as a first screening agent, and (b) at least one 4,4-diarylbutadiene compound, as a second screening agent, formulated into a topically applicable, cosmetically/dermatologically acceptable vehicle therefor.
    Type: Grant
    Filed: June 18, 2003
    Date of Patent: January 23, 2007
    Assignee: L'Oreal
    Inventor: Didier Candau