Patents by Inventor Philipp STEVEN

Philipp STEVEN 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).

  • Publication number: 20080011604
    Abstract: The invention relates to a method for water electrolysis consisting in using an electrode containing at least one type of oxide material of general formula A2?x?yA?xA?yM1?zM?zO4+?, wherein A is a lanthanide and/or alkaline and/or alkaline earth metal cation, A? is at least one lanthanide and/or alkaline and/or alkaline earth metal cation, A? is a cation gap, M is a transition metal element, M? is at least one type of transition metal element, wherein said metal is such that 0<y<0.30, preferably 0<y?0.20; ?0 1??<0 25, preferably 0??<0.
    Type: Application
    Filed: June 21, 2005
    Publication date: January 17, 2008
    Applicant: Electricite De France
    Inventors: Philippe Stevens, Cecile Lalane, Jean-Marc Bassat, Fabrice Mauvy, Jean-Claude Grenier
  • Publication number: 20070098905
    Abstract: Method of preparing a metal oxide layer on a substrate, in which the following successive steps are carried out: a) a metal oxide powder is dispersed in a liquid medium comprising a dispersion solvent and a dispersant, the said liquid medium containing neither plasticizer nor binder, by means of which a suspension A of the said metal oxide powder in the said liquid medium is obtained; b) a solution of at least one polymer in a solvent is added to the said suspension A, by means of which a suspension B is obtained; c) suspension B is deposited on the substrate by a dip coating method, by means of which a green layer is obtained; d) the green layer obtained in step c) is dried; and e) the dried layer obtained in step d) is calcined.
    Type: Application
    Filed: June 17, 2004
    Publication date: May 3, 2007
    Applicant: ELECTRICITE DE FRANCE SERVICE NATIONAL
    Inventors: Manuel Gaudon, Christel Laberty-Robert, Florence Ansart, Philippe Stevens