Patents by Inventor Emmanuelle Maurin

Emmanuelle Maurin 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).

  • Product for topical application containing a lipase and a hydroxy acid precursor
    Patent number: 6488928
    Abstract: The present invention concerns a product for topical application, capable of releasing a hydroxy acid on the skin, containing a lipase as enzyme and at least one precursor of the hydroxy acid. The precursor is an ester of the hydroxy acid, containing at least one ester functional group having a saturated or unsaturated, linear or branched chain and from 2 to 25 carbon atoms. According to a preferred form, the precursor and the lipase are packaged so as not to be in contact with one another until the time of application to the skin.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: December 3, 2002
    Assignee: L'Oreal
    Inventors: Emmanuelle Maurin, Daniel Sera, Gerard Guth
  • Product for topical application containing a lipase and an active ingredient precursor
    Patent number: 5932232
    Abstract: The present invention concerns a product for topical application, capable of releasing a cosmetic and/or dermatological active ingredient in and/or on the skin, containing a lipase enzyme and at least one ester precursor of the active ingredient. The ester contains an ester functional group having a saturated or unsaturated, linear or branched chain having from 2 to 25 carbon atoms. According to a preferred embodiment, the precursor and lipase are packaged so as not to be in contact with one another until the time of application to the skin.
    Type: Grant
    Filed: October 8, 1997
    Date of Patent: August 3, 1999
    Assignee: L'Oreal
    Inventors: Armelle De Salvert, Daniel Sera, Gerard Guth, Pierre Fodor, Emmanuelle Maurin
  • Product for topical application containing a lipase and an active ingredient precursor
    Patent number: 5788972
    Abstract: The present invention concerns a product for topical application, capable of releasing a cosmetic and/or dermatological active ingredient in and/or on the skin, containing a lipase enzyme and at least one ester precursor of the active ingredient. The ester contains an ester functional group having a saturated or unsaturated, linear or branched chain having from 2 to 25 carbon atoms. According to a preferred embodiment, the precursor and lipase are packaged so as not to be in contact with one another until the time of application to the skin.
    Type: Grant
    Filed: October 24, 1995
    Date of Patent: August 4, 1998
    Assignee: L'Oreal
    Inventors: Armelle De Salvert, Daniel Sera, Gerard Guth, Pierre Fodor, Emmanuelle Maurin
  • Extract of periwinkle seed and compositions containing the same
    Patent number: 5653984
    Abstract: Extracts of periwinkle seed, obtained by bioconversion, and compositions containing such extracts display the property of stimulating mitochondrial cell respiration and of stimulating the cell growth of fibroblasts and keratinocytes. Such extracts and compositions also exhibit activity against oxygen free radicals.
    Type: Grant
    Filed: July 11, 1995
    Date of Patent: August 5, 1997
    Assignee: L'Oreal
    Inventors: Pierre Fodor, Gerard Guth, Emmanuelle Maurin