Patents by Inventor Nathalie Louvet

Nathalie Louvet 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: 5891903
    Abstract: The present invention relates to the use of melatonin or analogues thereof in a composition as an agent for stabilizing hydrophilic gelling polymers. The invention relates more particularly to cosmetic or pharmaceutical compositions for topical use.
    Type: Grant
    Filed: December 8, 1997
    Date of Patent: April 6, 1999
    Assignee: Societe L'Oreal S.A.
    Inventors: Nathalie Louvet-Plaisant, Fran.cedilla.oise Lebreton
  • Patent number: 5741766
    Abstract: Oil-in-water (O/W) cleansing emulsions having the appearance of a milk, comprising a self-emulsifiable composition based on fatty alcohols as emulsifying agent and an acrylic copolymer as gelling agent, useful for cleansing the skin of the face and/or of the body. These emulsions may be used in particular as a make-up removing milk.
    Type: Grant
    Filed: June 14, 1995
    Date of Patent: April 21, 1998
    Assignee: L'Oreal
    Inventors: Catherine Marion, Nathalie Louvet-Plaisant, Liliane Lukassen
  • Patent number: 5690945
    Abstract: A cosmetic skin-cleansing mask composition which contains, as its principal cleansing constituent, graded or calibrated spheroidal polyamide particles which are dispersed in an aqueous gel, the particles being present in an amount greater than or equal to 12% by weight relative to the total weight of the composition.These particles impart to the composition a texture and qualities which are close to those of a cream.
    Type: Grant
    Filed: March 24, 1995
    Date of Patent: November 25, 1997
    Assignee: L'Oreal
    Inventors: Lien Bui-Bertrand, Nathalie Louvet-Plaisant
  • Patent number: 5474777
    Abstract: Liquid cleansing cosmetic composition consisting of an oily phase and an aqueous phase, the oily phase consisting of at least one dialkylphthalate and, optionally, of dialkylphthalate-miscible products, the aqueous phase containing one or more ionic surface-active agents. This two-phase cosmetic composition leaves a feeling of softness on the skin and is provided in an aesthetically attractive form.
    Type: Grant
    Filed: January 12, 1994
    Date of Patent: December 12, 1995
    Assignee: L'Oreal
    Inventors: Helene Marion, Nathalie Louvet, Liliane Lukassen
  • Patent number: 5468496
    Abstract: A cosmetic or dermatological composition has an aqueous phase and a separate oily phase in a ratio of between 30:70 and 60:40, at least one of the phases containing a surfactant, the aqueous phase containing a demixing agent in a proportion of between 0.025% and 5% by weight, the demixing agent having the formula: ##STR1## in which: R represents a saturated linear alkyl radical having from 12 to 16 carbon atoms. The composition may be used for any cosmetic or dermatological purpose, particularly for removing makeup from the eyes or face, as a sun lotion or as a lotion for cleansing or care of the skin.
    Type: Grant
    Filed: December 14, 1993
    Date of Patent: November 21, 1995
    Assignee: L'Oreal
    Inventors: Philippe Touzan, Liliane Lukassen, Nathalie Louvet
  • Patent number: 5286475
    Abstract: An anhydrous cosmetic composition in the aerosol form for forming a foam is composed of a propellant and an oily phase. The oily phase contains in combination at least one cosmetic oil or a mixture of an oil and a fatty substance and at least one foaming agent. The foaming agent corresponds to the following general formula: ##STR1## wherein R represents a hydrogen atom or an alkyl radical having 14 to 20 carbon atoms, andR.sub.1 represents an alkyl radical having 8 to 18 carbon atoms. This composition allows a highly stable foam to be obtained.
    Type: Grant
    Filed: November 8, 1991
    Date of Patent: February 15, 1994
    Assignee: L'Oreal
    Inventors: Nathalie Louvet, Liliane Lukassen, Jean P. Yquel