Patents by Inventor Anne Castera

Anne Castera 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).

  • Method of preparing fat fractions of vegetable origin enriched with unsaponifiable materials and use of said fractions for preparing cosmetic and/or pharmaceutical compositions, in particular dermatological compositions
    Patent number: 5679393
    Abstract: A process for preparation of a fat fraction of vegetable origin enriched with unsaponifiable materials. A fat of vegetable origin is treated with a hot polar solvent of the ketone type to obtain a first fraction insoluble in the hot ketone solvent which is rich in unsaponifiable materials, and a second fraction which is a solution of hot soluble materials. The first fraction is then separated from the second fraction, and the second fraction is subjected to a crystallization in a crystallization solvent at a temperature below 0.degree. C., followed by filtering to obtain a filtrate. The crystallization solvent is then evaporated from the filtrate to obtain a further fraction rich and unsaponifiable materials.
    Type: Grant
    Filed: October 25, 1995
    Date of Patent: October 21, 1997
    Assignee: Deslog
    Inventors: Joel Laur, Anne Castera, Fran.cedilla.ois Mordret, Xavier Pages-Xatart-Pares, Jean-Michel Guichard