Patents by Inventor Thierry Sevenet

Thierry Sevenet 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).

  • Depigmenting cosmetic and/or dermatological composition containing a di- or tri-caffeoylquninic acid, or a mixture thereof
    Patent number: 5445816
    Abstract: A depigmenting cosmetic or dermatological composition containing, as active ingredient, at least one di- or tri-caffeoylquinic acid corresponding to general formula (I): ##STR1## in which: R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent a hydrogen atom or the CAF radical corresponding to the formula: ##STR2## provided that at least two, and at most three, of the R.sub.1, R.sub.2, R.sub.3, and R.sub.4 radicals represent the CAF radical, but excluding R.sub.1 and R.sub.2 as representing the CAF radical and R.sub.2 and R.sub.3 as representing a hydrogen atom, or a mixture of said caffeoylquinic acids.
    Type: Grant
    Filed: December 2, 1994
    Date of Patent: August 29, 1995
    Assignee: L'Oreal
    Inventors: Ming Li, Thierry Sevenet, Hubert Schaller, Hamid Abdul Hadi, Daniel Guenard, Pierre Potier, Eric Pilleux
  • Depigmenting cosmetic and/or dermatological composition containing a di- or tri-caffeoylquinic acid, or a mixture thereof
    Patent number: 5395624
    Abstract: A depigmenting cosmetic or dermatological composition containing, as active ingredient, at least one di- or tri-caffeoylquinic acid corresponding to general formula (I): ##STR1## in which: R.sub.1, R.sub.2, R.sub.3, and R.sub.4 represent a hydrogen atom or the CAF radical corresponding to the formula: ##STR2## provided that at least two, and at most three, of the R.sub.1, R.sub.2, R.sub.3, and R.sub.4 radicals represent the CAF radical, but excluding R.sub.1 and R.sub.4 as representing the CAF radical and R.sub.2 and R.sub.3 as representing a hydrogen atom, or a mixture of said caffeoylquinic acids.
    Type: Grant
    Filed: June 29, 1993
    Date of Patent: March 7, 1995
    Assignee: L'Oreal
    Inventors: Ming Li, Thierry Sevenet, Hubert Schaller, Hamid Abdul Hadi, Daniel Guenard, Pierre Potier, Eric Pilleux
  • Depigmenting cosmetic or dermatological composition containing arbutoside derivatives
    Patent number: 5346693
    Abstract: A cosmetic or dermatological composition contains as an active ingredient at least one arbutoside derivative with the following general formula: ##STR1## wherein: R represents an unsaturated aliphatic or aromatic hydroxylated residue having 4 to 16 carbon atoms, and R' represents a hydrogen atom or the ##STR2## radical. Ar represents a phenyl radical that may be substituted by one or more hydroxyl groups. Applications of the composition include the bleaching of skin and the treatment of pigmented spots.
    Type: Grant
    Filed: July 17, 1992
    Date of Patent: September 13, 1994
    Assignee: L'Oreal
    Inventors: Eric Pilleux, Ming Li, Jean-Pierre Cosson, Daniel Guenard, Thierry Sevenet, Pierre Potier
  • Vincamine derivatives
    Patent number: 4033969
    Abstract: New compounds having the formula ##STR1## in which Y represents a hydrogen atom, in which case Z.sub.1 and Z.sub.2 represent simultaneously an oxygen atom, or Z.sub.1 represents a methoxycarbonyl radical and Z.sub.2 a hydroxy radical, or Y and Z.sub.2 form together a carbon-carbon bond and Z.sub.1 is a methoxycarbonyl radical, said compounds being additionally characterized by a cis-fusion of the D/E rings. Said new compounds and vincamine and certain of its derivatives are prepared from an enamine having the formula : ##STR2## in which R is H or C.sub.2 H.sub.5.
    Type: Grant
    Filed: September 29, 1975
    Date of Patent: July 5, 1977
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Thierry Sevenet, Claude Thal, Pierre Potier, Henri Philippe Husson
  • Vincamine derivatives and process for the preparation of vincamine and derivatives thereof
    Patent number: 3937709
    Abstract: New compounds having the formula ##SPC1##In which Y represents a hydrogen atom, in which case Z.sub.1 and Z.sub.2 represent simultaneously an oxygen atom, or Z.sub.1 represents a methoxycarbonyl radical and Z.sub.2 a hydroxy radical, or Y and Z.sub.2 form together a carbon-carbon bond and Z.sub.1 is a methoxycarbonyl radical, said compounds being additionally characterized by a cis-fusion of the D/E rings. Said new compounds and vincamine and certain of its derivatives are prepared from an enamine having the formula: ##SPC2##In which R is H or C.sub.2 H.sub.5.
    Type: Grant
    Filed: June 15, 1973
    Date of Patent: February 10, 1976
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Thierry Sevenet, Claude Thal, Henri Philippe Husson, Pierre Potier