Patents by Inventor Laurie Pesant

Laurie Pesant 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).

  • Catalytic filter based on silicon carbide (?-SiC) for combustion of soot derived from exhaust gases from an internal combustion engine
    Patent number: 7479265
    Abstract: This invention relates to ?-SiC foam parts with a specific surface area preferably equal to at least 5 m2/g and with at least two zones A and B with a different cellular porosity distribution, wherein the parts were made by chemical transformation of a porous precursor medium comprising at least two blocks A? and B?, each having a different cellular porosity distribution, and in that the at least two zones A and B are derived from the chemical transformation of the two blocks A? and B?. This foam, optionally after deposition of an active layer, may be used as a filter medium in cartridges designed for the purification of exhaust gases. The invention also relates to manufacturing processes for preparing such a filter medium.
    Type: Grant
    Filed: October 14, 2004
    Date of Patent: January 20, 2009
    Assignees: SICAT, Entre National de la Recherche Scientifigue, Universite Louis Pasteur de Strasbourg
    Inventors: Charlotte Pham, Laurie Pesant, Pierre Bernhardt, Michel Wolf, Cuong Pham-Huu, Marc-Jacques Ledoux, Michel Kartheuser, Estelle Vanhaecke
  • Method for preparing catalysts for heterogeneous catalysis by multiple-phase impregnation, catalysts and use of said catalysts
    Publication number: 20060153765
    Abstract: The invention concerns a method for so-called two-phase impregnation of a ?-SiC support with high specific surface area, said method comprising at least the following steps: (a) a first impregnating at least once said support with a polar agent A, (b) a second impregnating which consists in impregnating at least once said support with at least an agent B less polar than agent A. Said method enables the production of novel catalysts for heterogeneous catalysis.
    Type: Application
    Filed: July 7, 2003
    Publication date: July 13, 2006
    Inventors: Cuong Pham-Huu, Nicolas Keller, Marc-Jacques Ledoux, Jean-Mario Nhut, Laurie Pesant, Claude Estournes
  • Catalytic filter based on silicon carbide (beta-SiC) for combustion of soot derived from exhaust gases from an internal combustion engine
    Publication number: 20050159292
    Abstract: This invention relates to ?-SiC foam parts with a specific surface area preferably equal to at least 5 m2/g and with at least two zones A and B with a different cellular porosity distribution, wherein the parts were made by chemical transformation of a porous precursor medium comprising at least two blocks A? and B?, each having a different cellular porosity distribution, and in that the at least two zones A and B are derived from the chemical transformation of the two blocks A? and B?. This foam, optionally after deposition of an active layer, may be used as a filter medium in cartridges designed for the purification of exhaust gases. The invention also relates to manufacturing processes for preparing such a filter medium.
    Type: Application
    Filed: October 14, 2004
    Publication date: July 21, 2005
    Applicants: SICAT, Centre National de la Recherche Scientifique, Universite Louis Pasteur de Strasbourg
    Inventors: Charlotte Pham, Laurie Pesant, Pierre Bernhardt, Michel Wolf, Cuong Pham-Huu, Marc-Jacques Ledoux, Michel Kartheuser, Estelle Vanhaecke