Patents by Inventor Cedric Desroches

Cedric Desroches 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 for preparing rare earth fluoride nanoparticles
    Patent number: 9327993
    Abstract: The present invention relates to a method for preparing nanoparticles at least partially consisting of rare earth fluoride, characterized in that said fluoride is produced, in a solution, from a salt of the corresponding rare earth element and from a charge-transfer complex of formula (I), where Ra, Rb, and Rc are as defined in claim 1.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: May 3, 2016
    Assignees: UNIVERSITE CLAUDE BERNARD LYON I, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Frédéric Chaput, Cédric Desroches, Stéphane Parola
  • Hybrid organic-inorganic material constituted by a silica network having photochromic agents and optical power limiting agents as a doping agent in the material
    Patent number: 8901185
    Abstract: The invention concerns a preparation process of a hybrid organic-inorganic material including the following successive steps: a) preparation of a neutral organosilicon sol in at least one organic solvent, b) incorporation of a doping agent into the neutral organosiliconsol, and production of a doped sol, c) incorporation into the doped sol, of an accelerating agent in order to activate the subsequent gelation of the sol, d) condensation of the sol in order to obtain a crosslinked gel, e) drying of the gel and production of a stable doped gel. and the material obtainable by such a method.
    Type: Grant
    Filed: April 12, 2011
    Date of Patent: December 2, 2014
    Assignees: Universite Claude Bernard Lyon I, Centre National de la Recherche Scientifique, FOI Swedish Defence Research Agency
    Inventors: Frédéric Chaput, Stéphane Parola, César Lopes, Denis Chateau, Cédric Desroches
  • METHOD FOR PREPARING HYBRID MATERIALS OBTAINED BY FAST CONDENSATION OF AN ORGANOSILICON SOL
    Publication number: 20130131203
    Abstract: The invention concerns a preparation process of a hybrid organic-inorganic material including the following successive steps: a) preparation of a neutral organosilicon sol in at least one organic solvent, b) incorporation of a doping agent into the neutral organosiliconsol, and production of a doped sol, c) incorporation into the doped sol, of an accelerating agent in order to activate the subsequent gelation of the sol, d) condensation of the sol in order to obtain a crosslinked gel, e) drying of the gel and production of a stable doped gel. and the material obtainable by such a method.
    Type: Application
    Filed: April 12, 2011
    Publication date: May 23, 2013
    Applicants: Centre National De La Recherche Scientifique, Universite Claude Bernard I
    Inventors: Frédéric Chaput, Stéphane Parola, César Lopes, Denis Chateau, Cédric Desroches
  • METHOD FOR PREPARING RARE EARTH FLUORIDE NANOPARTICLES
    Publication number: 20120164049
    Abstract: The present invention relates to a method for preparing nanoparticles at least partially consisting of rare earth fluoride, characterized in that said fluoride is produced, in a solution, from a salt of the corresponding rare earth element and from a charge-transfer complex of formula (I), where Ra, Rb, and Rc are as defined in claim 1.
    Type: Application
    Filed: June 21, 2010
    Publication date: June 28, 2012
    Applicants: CENTRE NATIONAL DE LA RECHERCHE-SCIENTIFIQUE, UNIVERSITE CLAUDE BERNARD LYON I
    Inventors: Frédéric Chaput, Cédric Desroches, Stéphana Parola
  • Metallic thiacalix[4]arene complexes
    Patent number: 6936721
    Abstract: The object of the invention is new complexes of derivatives of thiacalix[4]arenes having the formula: R1a, R2a, R3a, R4a, R1b, R2b, R3b et R4b are such as defined in claim 1 and their utilization, especially for manufacturing of materials having optical limiter properties.
    Type: Grant
    Filed: February 25, 2002
    Date of Patent: August 30, 2005
    Assignees: Universite Claude Bernard Lyon 1, Centre National de la Recherche Scientifique (C.N.R.S.)
    Inventors: Stephane Parola, Cedric Desroches, Francis Vocanson, Jean Bouix, Roger Lamartine
  • Metallic thiacalix[4]arene complexes
    Publication number: 20040127722
    Abstract: The object of the invention is new complexes of derivatives of thiacalix[4]arenes having the formula: 1
    Type: Application
    Filed: February 10, 2004
    Publication date: July 1, 2004
    Inventors: Stephane Parola, Cedric Desroches, Francis Vocanson, Jean Bouix, Roger Lamartine