Patents by Inventor Dominique Begin

Dominique Begin 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).

  • Preparation of graphene by mechanically thinning graphite materials
    Patent number: 9309122
    Abstract: The preparation of graphene, mono-, bi- and multi-layers from graphite-based precursor materials, for example, pencil lead or graphite, by a method of mechanical thinning on the surface of a planar substrate with controlled roughness, followed by sonication in order to collect the graphene deposited on the substrate in a liquid medium. The bearing force during thinning by mechanical friction enables the number of graphene sheets deposited on the surface of the substrate to be controlled.
    Type: Grant
    Filed: November 3, 2010
    Date of Patent: April 12, 2016
    Assignees: Centre National de la Recherche Scientifique, Universite de Strasbourg
    Inventors: Izabela Janowska, Dominique Begin, Kambiz Chizari, Ovidiu Ersen, Pierre Bernhardt, Thierry Romero, Marc Ledoux, Cuong Pham-Huu
  • Photocatalysts based on structured three-dimensional carbide, in particular ?-SiC, foams
    Patent number: 8628726
    Abstract: The invention relates to a photocatalyst comprising a ?-SiC cellular foam and a photocatalytically active phase, deposited directly on said cellular foam or on an intermediate phase deposited on said cellular foam. The average size of the cells is between 2500 ?m and 5000 ?m. The foam can comprise nanotubes or nanofibers (particularly of carbon, SiC, and TiO2) that consist of, or carry as an intermediate phase, a photocatalytically active phase.
    Type: Grant
    Filed: September 14, 2009
    Date of Patent: January 14, 2014
    Assignees: Centre National de la Recherche Scientifique, Universite de Strasbourg
    Inventors: Cuong Pham-Huu, Nicolas Keller, Marc-Jacques Ledoux, Valérie Keller-Spitzer, Dominique Begin, Mathieu Grandcolas, Izabela Janowska, Shabnam Hajesmaili
  • PREPARATION OF GRAPHENE BY MECHANICALLY THINNING GRAPHITE MATERIALS
    Publication number: 20120241690
    Abstract: The preparation of graphene, mono-, bi- and multi-layers from graphite-based precursor materials, for example, pencil lead or graphite, by a method of mechanical thinning on the surface of a planar substrate with controlled roughness, followed by sonication in order to collect the graphene deposited on the substrate in a liquid medium. The bearing force during thinning by mechanical friction enables the number of graphene sheets deposited on the surface of the substrate to be controlled.
    Type: Application
    Filed: November 3, 2010
    Publication date: September 27, 2012
    Applicants: Universite de Strasbourg, Centre National De La Recherche Scientifique
    Inventors: Izabela Janowska, Dominique Begin, Kambiz Chizari, Ovidiu Ersen, Pierre Bernhardt, Thierry Romero, Marc Ledoux, Cuong Pham-Huu
  • PHOTOCATALYSTS BASED ON STRUCTURED THREE-DIMENSIONAL CARBIDE, IN PARTICULAR B-SIC, FOAMS
    Publication number: 20110262312
    Abstract: The invention relates to a photocatalyst comprising a ?-SiC cellular foam and a photocatalytically active phase, deposited directly on said cellular foam or on an intermediate phase deposited on said cellular foam. The average size of the cells is between 2500 ?m and 5000 ?m. The foam can comprise nanotubes or nanofibers (particularly of carbon, SiC, and TiO2) that consist of, or carry as an intermediate phase, a photocatalytically active phase.
    Type: Application
    Filed: September 14, 2009
    Publication date: October 27, 2011
    Inventors: Cuong Pham-Huu, Nicolas Keller, Marc-Jacques Ledoux, Valérie Keller-Spitzer, Dominique Begin, Mathieu Grandcolas, Izabela Janowska, Shabnam Hajesmaili
  • Materials based on tangled nanotubes or nanofibres, preparation method thereof and use of same
    Patent number: 7988861
    Abstract: A method of preparing a solid material based on tangled nanotubes and/or nanofibers, includes a step of growing carbon nanofibers and/or nanotubes with restraint in a contained reactor; and the materials thus obtained. The different uses of the materials are also disclosed.
    Type: Grant
    Filed: February 1, 2006
    Date of Patent: August 2, 2011
    Assignees: Centre National de la Recherche Scientifique (C.N.R.S.), Universite Louis Pasteur
    Inventors: Cuong Pham-Huu, Marc-Jacques Ledoux, Dominique Begin, Patrick Nguyen, Julien Amadou, Jean-Philippe Tessonnier
  • Photocatalysts Based on Structured Three-Dimensional Carbon or Carbon-Containing Material Forms
    Publication number: 20100239470
    Abstract: The invention relates to a photocatalyst comprising a cellular foam selected from carbon foam and the foam of a carbon material, such as a polymer, and a photocatalytically active phase, deposited directly on said cellular foam or on an intermediate phase deposited on said cellular foam. The average size of the cells is between 2500 ?m and 5000 ?m. The foam can comprise nanotubes or nanofibers (in particular TiO2).
    Type: Application
    Filed: September 14, 2009
    Publication date: September 23, 2010
    Inventors: Cuong Pham-Huu, Nicolas Keller, Marc-Jacques Ledoux, Valérie Keller-Spitzer, Dominique Begin, Pierre Bernhardt, Sébastien Josset, Shabnam Hajesmaili, Thierry Romero, Nathanaëlle Wurtz
  • Materials Based on Tangled Nanotubes or Nanofibres, Preparation Method Thereof and Use of Same
    Publication number: 20080156733
    Abstract: A method of preparing a solid material based on tangled nanotubes and/or nanofibres, includes a step of growing carbon nanofibres and/or nanotubes with restraint in a contained reactor; and the materials thus obtained. The different uses of the materials are also disclosed.
    Type: Application
    Filed: February 1, 2006
    Publication date: July 3, 2008
    Applicant: UNIVERSITE LOUIS PASTEUR
    Inventors: Cuong Pham-Huu, Marc-Jacques Ledoux, Dominique Begin, Patrick Nguyen, Julien Amadou, Jean-Philippe Tessonnier