Patents by Inventor Louis Dubertret

Louis Dubertret 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).

  • cosmetic composition comprising fluorescent nanoparticles as pigments
    Publication number: 20060165621
    Abstract: The invention concerns a make-up composition comprising as pigment cosmetically acceptable fluorescent semi-conductive nanoparticles in a cosmetic support.
    Type: Application
    Filed: November 28, 2003
    Publication date: July 27, 2006
    Inventors: Louis Dubertret, Benoit Dubertret
  • Skin-equivalent prepared by the use of punch biopsy
    Patent number: 4604346
    Abstract: An improvement in the preparation of living skin-equivalents from contracted hydrated collagen lattices having keratinocyte cells on the surface is disclosed herein. In this improvement, punch biopsies of skin are employed to provide a source of keratinocyte cells to the lattices.
    Type: Grant
    Filed: October 9, 1984
    Date of Patent: August 5, 1986
    Assignee: Massachusetts Institute of Technology
    Inventors: Eugene Bell, Louis Dubertret
  • (3,4-c)-Pyrido psoralens, process of preparation, application in cosmetology and therapeutics, and cosmetological and pharmaceutical composition with them
    Patent number: 4464354
    Abstract: Monofunctional psoralen derivatives having the general formula ##STR1## wherein R represents a hydrogen atom, a lower alkyl group having from 1 to 4 atoms, preferably a methyl radical, or a lower alkoxy radical having from 1 to 4 carbon atoms, preferably a methoxy radical are described. The derivatives are photobiologically active and are useful in photochemical therapy and in cosmetics.
    Type: Grant
    Filed: February 24, 1983
    Date of Patent: August 7, 1984
    Assignee: Institut National de la Sante et de la Recherche Medicale
    Inventors: Emile Bisagni, Louis Dubertret, Jacqueline Moron, Dietrich Averbeck, Dora Papadopoulo, Jocelyne Blais, Paul Vigny, Maria N. Schwencke, Ethel Moustacchi, Silvano Nocentini, Francois Zajdela