Patents by Inventor Ovidiu Ersen

Ovidiu Ersen 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
  • 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