Patents by Inventor Stephane Marais

Stephane Marais 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).

  • FLEXIBLE BARRIER MEMBRANE AND METHOD FOR PRODUCING THE FLEXIBLE BARRIER MEMBRANE
    Publication number: 20200207066
    Abstract: The invention relates to a flexible barrier membrane (1) comprising at least one first layer (2a) of polyurethane, and at least one second layer (20) of material(s), which is incorporated into the first layer (2a) of polyurethane by a modification of at least one surface of the at least one layer of polyurethane. The at least one material of the at least one second layer is selected from the materials including inorganic silicon oxide, organic silicon oxide and a barrier polymer. The invention also relates to a method for producing the flexible barrier membrane (1).
    Type: Application
    Filed: June 26, 2018
    Publication date: July 2, 2020
    Applicant: CARMAT
    Inventors: Marc Grimmé, Pascal Dubuis, Malys-Claire Koun, Stéphane Marais, Aracelys Maria Marcano Zerpa, Kateryna Fatyeyeva, Fabienne Poncin-Épaillard
  • MATERIAL FOR CELL CULTIVATION, PRODUCTION METHODS AND USES THEREOF
    Publication number: 20160369229
    Abstract: A double-porosity three-dimensional material includes a support consisting of a polymer having a surface which includes positive charges and is functionalized by bioactive molecules which include negative charges and are used to increase the proliferation of eukaryotic cells. A method of producing the double-porosity three-dimensional material, and use of the material for fixing and stimulating the proliferation of eukaryotic cells are also described.
    Type: Application
    Filed: February 24, 2015
    Publication date: December 22, 2016
    Inventors: Elias AL TAWIL, Alexandre MONNIER, Quang Trong NGUYEN, Stephane MARAIS, Yusra KASSIM-SABRI, Elise DEMANGE, Brigitte DESCHREVEL
  • Proton-conducting composite membrane for fuel cells
    Patent number: 9331353
    Abstract: The present invention relates to a membrane that includes a porous polymer material made of a polyimide with interconnected macropores and impregnated with protic ionic liquid conductors (CLIP), as well as to the method for manufacturing same and to the uses thereof. The membranes of the invention fulfill the need for membranes including CLIPs, which have good proton-conducting properties as well as good physical properties, in particular high thermal and mechanical stability, in addition to a wide range of electrochemical stability.
    Type: Grant
    Filed: November 29, 2011
    Date of Patent: May 3, 2016
    Assignees: Universite De Rouen, Institut Polytechnique De Grenoble, Centre National De La Recherche Scientifique—CNRS
    Inventors: Corinne Chappey, Sema Karademir, Quang Trong Nguyen, Dominique Langevin, Stephane Marais, Regis Mercier, Mathieu Martinez, Cristina Iojoiu, Jean-Ives Sanchez
  • PROTON-CONDUCTING COMPOSITE MEMBRANE FOR FUEL CELLS
    Publication number: 20140199613
    Abstract: The present invention relates to a membrane that includes a porous polymer material made of a polyimide with interconnected macropores and impregnated with protic ionic liquid conductors (CLIP), as well as to the method for manufacturing same and to the uses thereof. The membranes of the invention fulfil the need for membranes including CLIPs, which have good proton-conducting properties as well as good physical properties, in particular high thermal and mechanical stability, in addition to a wide range of electrochemical stability.
    Type: Application
    Filed: November 29, 2011
    Publication date: July 17, 2014
    Applicants: UNIVERSITE DE ROUEN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE-CNRS, INSTITUT POLYTECHNIQUE DE GRENOBLE
    Inventors: Corinne Chappey, Sema Karademir, Quang Trong Nguyen, Dominique Langevin, Stephane Marais, Regis Mercier, Mathieu Martinez, Cristina Iojoiu, Jean-Ives Sanchez