Patents by Inventor Michel Kleitz

Michel Kleitz 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).

  • Process for preparing a composite electrolyte based on BIMEVOX and the use of said compound in separating oxygen from a gas mixture
    Patent number: 6207038
    Abstract: A process for preparing a solid composite electrolyte comprising at least one compound of the BIMEVOX family is provided. The process comprises at least one step of preparing a mixture of one or more compounds of the BIMEVOX family with one or more chemically inert compounds, at least one step of compacting the mixture obtained, and at least one sintering step during which the temperature reached, over a nonzero time interval, has a value greater than the optimum sintering temperature for the compound of the BIMEVOX family.
    Type: Grant
    Filed: July 2, 1999
    Date of Patent: March 27, 2001
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitaion des Procedes Georges Claude
    Inventors: César Marlu Steil, Jacques Fouletier, Michel Kleitz, Gilles Lagrange, Pascal Del Gallo, Gaëtan Mairesse, Jean-Claude Boivin
  • Process for separating oxygen from a gaseous mixture containing it and device for practicing this process
    Patent number: 6143162
    Abstract: Process for separating oxygen from a gas mixture containing it employs a solid-electrolyte electrochemical cell, where the cell includes a homogeneous structure of one or more BIMEVOX derivatives, with dynamic electrodes created "in situ" that are reversible and self-adaptive, and at least two current collectors.
    Type: Grant
    Filed: October 28, 1998
    Date of Patent: November 7, 2000
    Assignee: L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude
    Inventors: Jean-Claude Boivin, Pascal Del Gallo, Jacques Fouletier, Michel Kleitz, Philippe Labrune, Gilles Lagrange, Gaetan Mairesse, Guy Nowogrocki, Marlu Cesar Steil
  • Composite structure including a solid electroylte and at least one volume electrode
    Patent number: 5785839
    Abstract: A composite structure comprising:(i) a solid electrolyte which is an O.sup.2- anion conductor and essentially impermeable to gases;(ii) a cathode; and(iii) an anode, wherein the cathode and anode are porous to gases and wherein the electrolyte is in contact with the cathode and anode,wherein at least one of the cathode and anode is a voluminal electrode comprising (a) at least one BIMEVOX compound and (b) an electronic conductor, forming a distinct solid phase, dispersed in the BIMEVOX compound so as to define, within respective volumes of the voluminal electrode, a plurality of triple contact points between an ambient gaseous atmosphere, the electrolyte, and the electronic conductor.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: July 28, 1998
    Assignees: Ecole Nationale Superieure de Chimi de Lille, Universite des Sciences et Technologies de Lille, L'Air Liquide, Societe Anonyme pour l'Etude et l'Exploitation des Procedes Georges Claude,
    Inventors: Michel Kleitz, Gaetan Mairesse, Jean-Claude Boivin, Gilles Lagrance
  • Compositions derived from BI4V2011
    Patent number: 5227257
    Abstract: The compositions are derived from Bi.sub.4 V.sub.2 O.sub.11 and are characterized by the fact that at least one of the elements present is substituted, the substituting element(s) being such that the structural nature of the gamma phase of Bi.sub.4 V.sub.2 O.sub.11 is maintained, as well as the equilibrium of the loads.
    Type: Grant
    Filed: March 16, 1992
    Date of Patent: July 13, 1993
    Assignee: Universite des Sciences et Techniques de Lille Flandres Artois Ecole Nationale Superieure de Chimie de Lille Institut National Polytechnique de Grenoble
    Inventors: Francis Abraham, Jean-Claude Boivin, Gaetan Mairesse, Guy Nowogrocki, Michel Kleitz, Jacques Fouletier
  • Electrically regenerative oxygen trap
    Patent number: 3963597
    Abstract: A regenerative oxygen trap which uses an oxygen absorbing material formed of a solid solution of metal oxides having both an ionic conductivity through 0.sup.2.sup.- ions and a nonzero electrical conductivity, the material forming part of a circuit which also includes a source of electricity. The material is converted in an inert gas to its reduced form by the passage of a current therethrough, in which form it is effective for the absorption of gaseous oxygen.
    Type: Grant
    Filed: March 25, 1974
    Date of Patent: June 15, 1976
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Michel Kleitz, Pierre Fabry, Jacques Fouletier