Patents by Inventor Jean-Louis Tholence

Jean-Louis Tholence 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).

  • Superconductor material and a method of preparing superconductor materials
    Patent number: 5952268
    Abstract: The present invention relates to method of preparing a superconductor material consisting in preparing a precursor constituted by a powder of Ba.sub.2 Ca.sub.n-1 Cu.sub.n+1 O.sub.x or Ba.sub.2 Ca.sub.n-1 Cu.sub.n+1 O.sub.x where n is an integer greater than 1 and x is greater than 2n+2; in mixing said powder with silver oxide power, optionally in the presence of excess copper oxide, in a proportion of one mole of precursor for one to three moles of silver oxide; and in heating to high temperature and high pressure.
    Type: Grant
    Filed: July 23, 1996
    Date of Patent: September 14, 1999
    Assignee: Alcatel
    Inventors: Miguel Angel Alario-Franco, Catherine Chaillout, Jean-Jacques Capponi, Jean-Louis Tholence, Benedicte Souletie
  • Superconductive mixed valence copper oxide, and method of making it
    Patent number: 4843059
    Abstract: A superconducting mixed valence copper oxide, having a formula of the type:(La.sub.2-x (Y.sub.x" Bi.sub.1-x").sub.x' Sr.sub.x-x').sub.1-e CuO.sub.4-y,where:0.ltoreq.x<0.30.ltoreq.x'.ltoreq.0.2 with x'<x0.ltoreq.x".ltoreq.10<y.ltoreq.0.10.ltoreq.e.ltoreq.0.005.
    Type: Grant
    Filed: March 10, 1988
    Date of Patent: June 27, 1989
    Assignee: Compagnie Generale D'Electricite
    Inventors: Francis Deslandes, Claude Michel, Jackie Provost, Bernard Raveau, Andre Sulpice, Jean-Louis Tholence, Bernard Chevalier