Patents by Inventor Jean-Michel Dance

Jean-Michel Dance 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 of making fluorine-stabilized superconductor materials
    Patent number: 5132281
    Abstract: Ceramic superconductor materials, e.g., of rare earth/alkaline earth metal/transition metal/oxygen type, contain an effective stabilizing amount of fluorine atoms distributed therein in a concentration gradient decreasing from the external face surface of the material to the core region thereof; advantageously the fluorine atoms are principally distributed in an external protective diffusion barrier layer.
    Type: Grant
    Filed: December 21, 1990
    Date of Patent: July 21, 1992
    Assignee: Rhone-Poulenc Chimie
    Inventors: Bernard Chevallier, Jean-Michel Dance, Jean Etourneau, Lucien Lozano, Alain Tressaud, Robert Tournier, Andre Sulpice, Jacques Chaussy, Pascal Lejay
  • Fluorine-stabilized superconductor materials
    Patent number: 5002927
    Abstract: Ceramic superconductor materials, e.g., of rare earth/alkaline earth metal/transition metal/oxygen type, contain an effective stabilizing amount of fluorine atoms distributed therein in a concentration gradient decreasing from the external face surface of the material to the core region thereof; advantageously the fluorine atoms are principally distributed in an external protective diffusion barrier layer.
    Type: Grant
    Filed: April 3, 1989
    Date of Patent: March 26, 1991
    Assignee: Rhone-Poulenc Chimie
    Inventors: Bernard Chevallier, Jean-Michel Dance, Jean Etourneau, Lucien Lozano, Alain Tressaud, Robert Tournier, Andre Sulpice, Jacques Chaussy, Pascal Lejay