Patents by Inventor Frédéric Ben

Frédéric Ben 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).

  • Use of a catalytic system for lactide and glycolide (co) oligomerization
    Patent number: 8389668
    Abstract: The use of a catalytic ring-opening lactide and glycolide (co)oligomerization system consisting of a strongly acidic ion-exchange resin-type polymeric catalyst and a (co)oligomerization additive, and a lactide and glycolide (co)oligomerization method using said catalytic system, are disclosed.
    Type: Grant
    Filed: March 15, 2005
    Date of Patent: March 5, 2013
    Assignee: Ipsen Pharma S.A.S.
    Inventors: Frédéric Ben, Didier Bourissou, Roland Cherif-Cheikh, Anne De Sousa Delgado, Magalie Graullier, Blanca Martin-Vaca
  • Method for synthesis of 2,5-dioxane-1,4-diones
    Patent number: 7504524
    Abstract: The invention relates to a novel method for the synthesis of 2,5-dioxane-1,4-diones having formula (I), comprising the oxidation of the ketone function of a cyclic compound having formula (II), wherein R1, R2, R3 and R4 independently represent the hydrogen atom, halo, (C2-C6) alkenyl, (C3-C7)cycloalkyl, cyclohexenyl and a radical having formula —(CH2)m—V—W.
    Type: Grant
    Filed: July 25, 2005
    Date of Patent: March 17, 2009
    Assignee: Societe de Conseils de Recherches Et d'Applications Scientifiques
    Inventors: Didier Bourissou, Blanca Martin-Vaca, Frédéric Ben, Magalie Graullier, Roland Cherif-Cheikh, Martin Montes
  • Method for Synthesis of 2,5-Dioxane-1,4-Diones
    Publication number: 20080004453
    Abstract: The invention relates to a novel method for the synthesis of 2,5-dioxane-1,4-diones having formula (I), comprising the oxidation of the ketone function of a cyclic compound having formula (II), wherein R1, R2, R3 and R4 independently represent the hydrogen atom, halo, (C2-C6) alkenyl, (C3-C7)cycloalkyl, cyclohexenyl and a radical having formula —(CH2)m—V—W.
    Type: Application
    Filed: July 25, 2005
    Publication date: January 3, 2008
    Applicant: Societe de Conseils de Recherches et D'Applications Scientifiques
    Inventors: Didier Bourissou, Blanca Martin-Vaca, Frederic Ben, Magalie Graullier, Roland Cherif-Cheikh, Martin Montes
  • Use of catalytic system for lactide and glycolide (co) oligomerization
    Publication number: 20070185304
    Abstract: The use of a catalytic ring-opening lactide and glycolide (co)oligomerization system consisting of a strongly acidic ion-exchange resin-type polymeric catalyst and a (co)oligomerization additive, and a lactide and glycolide (co)oligomerization method using said catalytic system, are disclosed.
    Type: Application
    Filed: March 15, 2005
    Publication date: August 9, 2007
    Inventors: Frederic Ben, Didier Bourissou, Roland Cherif-Cheikh, Anne De Sousa Delgado, Magalie Graullier, Blanca Martin-Vaca