Patents by Inventor Nicolas Evrard

Nicolas Evrard 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).

  • Region-selective method for preparing cyclodextrin C-6 monosulphonyl derivatives
    Patent number: 6570009
    Abstract: The invention relates to a highly regioselective method for preparing a derivative of cyclodextrin, &bgr;-cyclodextrin in particular, monosulfonylated at C-6, in which said cyclodextrin is caused to react with a sulfonylation agent, in an alkaline aqueous solution, in the presence of a metal salt able to form a co-ordination complex with the secondary hydroxyl groups of the cyclodextrin, and after the reaction said cyclodextrin derivative monosulfonylated at C-6 is recovered from the reaction mixture. The monosulfonylated derivatives of cyclodextrins find particular application as starting material for access to monofunctionalized derivatives of cyclodextrins.
    Type: Grant
    Filed: December 20, 2000
    Date of Patent: May 27, 2003
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Jacques Defaye, Serge Crouzy, Nicolas Evrard, Ho Law
  • Lighting unit for a vehicle
    Patent number: D667975
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: September 25, 2012
    Assignee: Valeo Vision S.A.
    Inventors: Nicolas Evrard, Eddy Beun, Frédéric Hayez