Patents by Inventor Stephane Mathe

Stephane Mathe 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).

  • Method and device for changing the pH of a solution
    Patent number: 9127651
    Abstract: The invention relates to a device (22) for changing the pH of a solvent in which a substance is dissolved. The device includes a housing (24) in contact with the solvent through a housing wall (26) that is permissive to the solvent and the substance. The housing contains enzymes adapted for converting the substance in order to provide hydrogen or hydroxyle ions; the housing wall being non-permissive to the enzymes.
    Type: Grant
    Filed: December 3, 2007
    Date of Patent: September 8, 2015
    Assignee: UNIVERSITE JOSEPH FOURIER
    Inventors: Philippe Cinquin, François Lenouvel, Vanessa Durrieu, Stéphane Mathe, Pierre Mozer
  • Bio-battery with enhanced yield
    Patent number: 8962196
    Abstract: A novel cell including first and second chambers containing a solvent and separated by a wall permeable to the solvent and impermeable to hydronium and/or hydroxyl ions; a first electrode in the first chamber; a second electrode in the second chamber; a first redox couple in the first chamber comprising a first oxidizer and a first reducer taking part in first oxidation-reduction reactions resulting in an electron exchange with the first electrode; a second redox couple in the second chamber comprising a second oxidizer and a second reducer taking part in second oxidation-reduction reactions resulting in an electron exchange with the second electrode, the wall being impermeable to the first and second redox couples; and first enzymes or first microorganisms placed in the first or second chamber and promoting a third oxidation-reduction reaction resulting transforming a first substance to a second substance comprising acid or alkaline species.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: February 24, 2015
    Assignees: Universite Joseph Fourier, Centre National de la Recherche Scientifique, InstitutNational des Sciences Appliquees de Toulouse
    Inventors: Aymeric Pellissier, Chantal Gondran, Francois Lenouvel, Philippe Cinquin, Serge Cosnier, Stephane Mathe
  • NOVEL BIOTRACERS AND USES THEREOF FOR CONTROLLING FILTRATION PLANTS
    Publication number: 20120018313
    Abstract: The present invention relates to novel biotracers, to a method for preparing same, and to a method for detecting the biotracers and for monitoring filtration systems.
    Type: Application
    Filed: December 16, 2009
    Publication date: January 26, 2012
    Applicant: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE (C.N. R.S)
    Inventors: Christelle Guigui, Corinne Cabassud, Sandrine Alfenore, Stéphane Mathe, Laurence Soussan
  • BIO-BATTERY WITH ENHANCED YIELD
    Publication number: 20110135967
    Abstract: A novel cell including first and second chambers containing a solvent and separated by a wall permeable to the solvent and impermeable to hydronium and/or hydroxyl ions; a first electrode in the first chamber; a second electrode in the second chamber; a first redox couple in the first chamber comprising a first oxidizer and a first reducer taking part in first oxidation-reduction reactions resulting in an electron exchange with the first electrode; a second redox couple in the second chamber comprising a second oxidizer and a second reducer taking part in second oxidation-reduction reactions resulting in an electron exchange with the second electrode, the wall being impermeable to the first and second redox couples; and first enzymes or first microorganisms placed in the first or second chamber and promoting a third oxidation-reduction reaction resulting transforming a first substance to a second substance comprising acid or alkaline species.
    Type: Application
    Filed: April 9, 2009
    Publication date: June 9, 2011
    Applicants: Universite Joseph Fourier, Centre National De La Recherche Scientifique, Institut National Des Sciences Appliquees De Toulouse
    Inventors: Aymeric Pellissier, Chantal Gondran, Francois Lenouvel, Philippe Cinquin, Serge Cosnier, Stephane Mathe
  • Method and Device for Changing the pH of a Solution
    Publication number: 20100145318
    Abstract: The invention relates to a device (22) for changing the pH of a solvent in which a substance is dissolved. The device includes a housing (24) in contact with the solvent through a housing wall (26) that is permissive to the solvent and the substance. The housing contains enzymes adapted for converting the substance in order to provide hydrogen or hydroxyle ions; the housing wall being non-permissive to the enzymes.
    Type: Application
    Filed: December 3, 2007
    Publication date: June 10, 2010
    Applicant: UNIVERSITE JOSEPH FOURIER
    Inventors: Philippe Cinquin, Francois Lenouvel, Vanessa Durrieu, Stephane Mathe, Pierre Mozer