Patents by Inventor Valérie Quesniaux Ryffel

Valérie Quesniaux Ryffel 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).

  • Patent number: 8846880
    Abstract: The present invention relates to novel synthetic analogs of phosphatidyl-myo-inositol mannosides (hereinafter referred to as PIMs) of general formula (I): or a pharmaceutically acceptable salt thereof, to the method for preparing same and to the use thereof in the prevention or treatment of a disease associated with the overexpression of cytokines or of chemokines, in particular of TNF and/or of IL-12. The invention also relates to a pharmaceutical composition comprising at least one synthetic derivative of PIM.
    Type: Grant
    Filed: May 20, 2009
    Date of Patent: September 30, 2014
    Assignees: Centre National de la Recherche Scientifique—CNRS—, Universite d'Orleans
    Inventors: Valérie Quesniaux Ryffel, Olivier Martin, Sophie Front
  • Publication number: 20100048492
    Abstract: The present invention relates to a pharmaceutical composition comprising at least one compound of formula (I): or one of its pharmaceutically acceptable salts in which R1, R2 and R3 are independently a hydrogen or an R7—CO— group where R7 is an alkyl, alkene or alkyne group, linear, branched or cyclic, comprising 2 to 24 carbon atoms; R4 is a hydrogen atom or a mannosyl group substituted in position 6 by an R6 residue chosen from the group comprising a hydrogen atom and an R7—CO— group; and R5 is chosen from the group comprising a hydrogen atom, a mono-, di-, tri-, tetra- and penta-mannosyl; and the use of such a composition for manufacturing a medication intended for the prevention or treatment of an illness associated with the over-expression of TNF and/or IL-12 in a subject.
    Type: Application
    Filed: November 20, 2007
    Publication date: February 25, 2010
    Inventors: Valérie Quesniaux Ryffel, Germain Puzo, Jérôme Nigou, Martine Gilleron
  • Patent number: 6635745
    Abstract: Monoclonal antibodies to rapamycin and to 40-O-alkylated derivatives of rapamycin are provided, together with novel haptens, immunogenic conjugates, and processes for making them and assay kits for using them.
    Type: Grant
    Filed: January 9, 2001
    Date of Patent: October 21, 2003
    Assignee: Novartis AG
    Inventors: Richard Sedrani, Valérie Quesniaux Ryffel
  • Publication number: 20020022717
    Abstract: Monoclonal antibodies to rapamycin and to 40-O-alkylated derivatives of rapamycin are provided, together with novel haptens, immunogenic conjugates, and processes for making them and assay kits for using them.
    Type: Application
    Filed: January 9, 2001
    Publication date: February 21, 2002
    Inventors: Richard Sedrani, Valerie Quesniaux Ryffel
  • Patent number: 6124453
    Abstract: A novel class of macrolides in whichi) positions 2 to 6 inclusive of the macrocyclic ring are provided by a piperidazinyl carboxylic acid residue; and/orii) positions 7 to 9 inclusive of the macrocyclic ring are provided by an aromatic .alpha.-amino acid residue; and/oriii) positions 10 to 12 inclusive of the macrocyclic ring are provided by an aliphatic .alpha.-amino acid residue, preferably comprising two, or especially all three of the characteristic structural features i), ii) and iii), more especially a compound of formula IX ##STR1## is provided having immunosuppressant and antinflammatory properties and protected and ring-open forms thereof.
    Type: Grant
    Filed: December 24, 1996
    Date of Patent: September 26, 2000
    Assignee: Novartis AG
    Inventors: Theodor Fehr, Lukas Oberer, Valerie Quesniaux Ryffel, Jean-Jacques Sanglier, Walter Schuler
  • Patent number: RE40596
    Abstract: Monoclonal antibodies to rapamycin and to 40-O-alkylated derivatives of rapamycin are provided, together with novel haptens, immunogenic conjugates, and processes for making them and assay kits for using them.
    Type: Grant
    Filed: February 6, 2007
    Date of Patent: December 2, 2008
    Assignee: Novartis AG
    Inventors: Richard Sedrani, Valerie Quesniaux Ryffel