Patents by Inventor Vanessa Durrieu

Vanessa Durrieu 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
  • Chemical activation of an actuator or an osmotic motor
    Patent number: 8859269
    Abstract: An actuator that includes an enclosure having a wall impermeable to a first solute and permeable to a solvent and containing, at least temporarily, a catalyst capable of promoting the transformation of at least one second solute into the first solute to vary the osmotic pressure in the enclosure; and a deformable chamber connected to the enclosure, the chamber being capable of increasing in volume under the action of the solvent moving from the enclosure into the chamber by osmosis or the enclosure being designed to be arranged in contact with the solvent, the chamber being capable of increasing in volume under the action of the solvent penetrating into the enclosure by osmosis.
    Type: Grant
    Filed: February 2, 2006
    Date of Patent: October 14, 2014
    Assignees: Universite Joseph Fourier, Institut National Polytechnique de Grenoble
    Inventors: François Lenouvel, Vanessa Durrieu, Naceur Belgacem, Philippe Cinquin
  • 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
  • Chemical Activation of an Actuator or an Osmotic Motor
    Publication number: 20090120082
    Abstract: An actuator comprising an enclosure having a wall impermeable to a first solute and permeable to a solvent and containing, at least temporarily, a catalyst capable of promoting the transformation of at least one second solute into the first solute to vary the osmotic pressure in the enclosure; and a deformable chamber connected to the enclosure, said chambre being capable of increasing in volume under the action of the solvent moving from the enclosure into the chamber by osmosis or said enclosure being designed to be arranged in contact with the solvent, said chamber being capable of increasing in volume under the action of the solvent penetrating into the enclosure by osmosis.
    Type: Application
    Filed: February 26, 2006
    Publication date: May 14, 2009
    Inventors: Francois Lenouvel, Vanessa Durrieu, Naceur Belgacem, Philippe Cinquin