Patents by Inventor Clémence Le Floch

Clémence Le Floch 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 chemically passivating a surface of a product made of a III-V semiconductor material and the product obtained by such a method
    Patent number: 9514961
    Abstract: A method for chemically passivating a surface of a product made of a III-V semiconductor material in which a) a P(N) polymer film is formed by deposition in a solvent comprising liquid ammonia. The film is formed by deposition, without electrochemical assistance, in the solvent, in the presence of an oxidizing chemical additive comprising phosphorous and generating electrical charge carriers in said surface.
    Type: Grant
    Filed: June 12, 2012
    Date of Patent: December 6, 2016
    Assignees: CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE—CNRS, ECOLE POLYTECHNIQUE, UNIVERSITE VERSAILLES SAINT-QUENTIN-EN-YVELINES
    Inventors: Arnaud Etcheberry, Anne-Marie Goncalves, Charles Mathieu, Jacky Vigneron, Nicolas Mézailles, Francoise Hervagault, Elaine Le Floch, Clémence Le Floch, Paul Le Floch
  • Method for Chemically Passivating a Surface of a Product Made of a III-V Semiconductor Material and the Product Obtained by Such a Method
    Publication number: 20150108617
    Abstract: A method for chemically passivating a surface of a product made of a III-V semiconductor material in which a) a P(N) polymer film is formed by deposition in a solvent comprising liquid ammonia. The film is formed by deposition, without electrochemical assistance, in the solvent, in the presence of an oxidizing chemical additive comprising phosphorous and generating electrical charge carriers in said surface.
    Type: Application
    Filed: June 12, 2012
    Publication date: April 23, 2015
    Applicants: Centre National de la Recherche Scientifique-CNRS, Universite de Versailles Saint-Quentin-En-Yvelines, Ecole Polytechnique
    Inventors: Francoise Hervagault, Elaine Le Floch, Clemence Le Floch, Paul Le Floch
  • Organometallic compounds containing a metal belonging to the second column of the periodic table, and method for preparing same
    Patent number: 8507397
    Abstract: The present invention relates to a novel organometallic compound based on a divalent metal belonging to the 2nd column of the Periodic Table that can be used as an alkylating agent in a catalytic system based on a rare-earth metal. This novel compound corresponds to the formula: in which, M is a metal belonging to the 2nd column of the Periodic Table, chosen from Be, Mg, Sr, Ba, and Ra; R1, R2, R3 and R4 are hydrogen atoms or alkyl or aryl substituents, optionally bonded together to form at least one ring or at least one aromatic ring; R and R? denote alkyl or aryl substituents; L is a Lewis base; x is an integer from 0 to 4; m is an integer greater than or equal to 0; and n is an integer greater than or equal to 1.
    Type: Grant
    Filed: June 1, 2010
    Date of Patent: August 13, 2013
    Assignees: Campagnie Generale des Etablissements Michelin, Michelin Recherche et Technique S.A., Centre National de la Recherche Scientific, Ecole Polytechnique
    Inventors: Guillaume Cortial, Francois Nief, Julien Thuilliez, Françoise Hervagault, Elaine Le Floch, Clémence Le Floch, Paul Le Floch
  • NOVEL ORGANOMETALLIC COMPOUNDS CONTAINING A METAL BELONGING TO THE SECOND COLUMN OF THE PERIODIC TABLE, AND METHOD FOR PREPARING SAME
    Publication number: 20120135857
    Abstract: The present invention relates to a novel organometallic compound based on a divalent metal belonging to the 2nd column of the Periodic Table that can be used as an alkylating agent in a catalytic system based on a rare-earth metal. This novel compound corresponds to the formula: in which, M is a metal belonging to the 2nd column of the Periodic Table, chosen from Be, Mg, Sr, Ba, and Ra; R1, R2, R3 and R4 are hydrogen atoms or alkyl or aryl substituents, optionally bonded together to form at least one ring or at least one aromatic ring; R and R? denote alkyl or aryl substituents; L is a Lewis base; x is an integer from 0 to 4; m is an integer greater than or equal to 0; and n is an integer greater than or equal to 1.
    Type: Application
    Filed: June 1, 2010
    Publication date: May 31, 2012
    Applicants: SOCIETE DE TECHNOLOGIE MICHELIN, ECOLE POLYTECHNIQUE, CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE, MICHELIN RECHERCHE ET TECHNIQUE S.A.
    Inventors: Guillaume Cortial, Pascal Le Floch, Françoise Hervagault, Elaine Le Floch, Clémence Le Floch, Paul Le Floch, Francois Nief, Julien Thuilliez