Patents by Inventor Christian Gilbert Guizard

Christian Gilbert Guizard 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).

  • Process for the manufacture of a mesoporous product
    Patent number: 10071502
    Abstract: Process for the manufacture of a mesoporous product comprising the following successive steps: a) preparation of a slip comprising: a solvent, an additive, more than 4%, as percentage by volume based on the slip, of a powder formed of ceramic particles, b) oriented freezing of the slip, so as to form a block comprising ice crystals separated by walls, c) removal of the ice crystals from said frozen slip block, optionally removed from the mold, so as to obtain a porous preform, d) removal of the additive, so as to obtain a preformed mesoporous product, the additive and the amount of additive being chosen so that the additive is present in a mesopore-forming micellar phase in said walls, more than 25% by volume of said ceramic particles exhibiting a size less than twice the size of the micelles of said mesopore-forming micellar phase.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 11, 2018
    Assignees: SAINT-GOBAIN CENTRE DE RECHERCHES ET D'ETUDES EUROPEEN, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE
    Inventors: Michaela Klotz, Idris Amirouche, Sylvain Deville, Christian Gilbert Guizard
  • PROCESS FOR THE MANUFACTURE OF A MESOPOROUS PRODUCT
    Publication number: 20150290834
    Abstract: Process for the manufacture of a mesoporous product comprising the following successive steps: a) preparation of a slip comprising: a solvent, an additive, more than 4%, as percentage by volume based on the slip, of a powder formed of ceramic particles, b) oriented freezing of the slip, so as to form a block comprising ice crystals separated by walls, c) removal of the ice crystals from said frozen slip block, optionally removed from the mold, so as to obtain a porous preform, d) removal of the additive, so as to obtain a preformed mesoporous product, the additive and the amount of additive being chosen so that the additive is present in a mesopore-forming micellar phase in said walls, more than 25% by volume of said ceramic particles exhibiting a size less than twice the size of the micelles of said mesopore-forming micellar phase.
    Type: Application
    Filed: December 20, 2012
    Publication date: October 15, 2015
    Inventors: Michaela Klotz, Idris Amirouche, Sylvain Deville, Christian Gilbert Guizard
  • Method and device for the selective extraction of halide ions from photographic baths
    Patent number: 5679503
    Abstract: The invention concerns a method and a device for extracting the halide ions from fixing or bleaching/fixing photographic solutions containing mainly thiosulfate as the fixing agent, bringing the solutions into contact with a nanofiltration module including at least two membranes of different types.The method enables the activity of the fixing or bleaching/fixing baths to be extended during the processing of photographic products.
    Type: Grant
    Filed: August 7, 1996
    Date of Patent: October 21, 1997
    Assignee: Eastman Kodak Company
    Inventors: Didier Jean Martin, Christian Gilbert Guizard, Jean-Francois Diaz