Patents by Inventor Isabelle Le Royer

Isabelle Le Royer 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: 5939079
    Abstract: The present invention relates to a process for the dispersion of at least one pulverulent organic filler and/or of at least one pulverulent inorganic filler in a vehicle composed of at least one fatty phase, by mixing the filler or fillers in the vehicle by high-pressure homogenization in one or a number of passes, to the cosmetic or dermatological compositions capable of being obtained by this process. The present invention also relates to the use of the compositions obtained by this process as the basis for care, make-up and/or hygiene products. The present invention also relates to the use of the compositions obtained by this process as the basis for products for protecting the skin, hair, scalp, nails, eyelashes, eyebrows and/or mucous membranes against the effects of ultraviolet radiation.
    Type: Grant
    Filed: January 3, 1997
    Date of Patent: August 17, 1999
    Assignee: L'Oreal
    Inventors: Isabelle Le Royer, Catherine Thibaut
  • Patent number: 5650166
    Abstract: Moisturizing composition for the simultaneous treatment of the surface layers and deep layers of the skin, and use thereof. The composition of the invention comprises a first dispersion of lipid vesicles which are capable of penetrating into the deep layers of the skin and which contain at least one active agent selected from the group consisting of polyols, sugars, proteins, vitamins and the derivatives thereof, ceramides, essential fatty acids, and sterols, for treating these deep layers, and a second dispersion of lipid vesicles which are capable of penetrating into the surface layers of the skin and which contain at least one active agent selected from the group consisting of polyols, nitrogen-containing carboxylic acid derivatives, keratolytic agents, inorganic salts and lipoamino acids, for treating these surface layers.
    Type: Grant
    Filed: December 30, 1994
    Date of Patent: July 22, 1997
    Assignee: L'Oreal
    Inventors: Alain Ribier, Jean-Thierry Simonnet, Jean-Fran.cedilla.ois Nadaud, Isabelle Le Royer
  • Patent number: 5605694
    Abstract: The invention relates to a stabilized, cosmetically and/or dermatologically acceptable emulsion intended to moisturize the skin. This emulsion contains a fatty phase, an aqueous phase, at least one emulsifying agent and at least one moisturizing agent. The aqueous phase contains at least one phosphated compound capable of releasing, via an enzymatic reaction when it is in contact with the skin, an active agent other than the moisturizing agent, which promotes moisturization of the skin, and the fatty phase contains at least one silicone-containing gum and/or one perfluoro oil. The emulsion according to the invention makes it possible to combat ageing of the skin, acne, pigmentation of the skin and/or hair loss.
    Type: Grant
    Filed: January 31, 1995
    Date of Patent: February 25, 1997
    Assignee: L'Oreal
    Inventors: Jean-Francois Nadaud, Jean-Pierre Laugier, Isabelle Le Royer, Dominique Bernard