Patents by Inventor Jean Claude Achard

Jean Claude Achard 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).

  • New lanthanum and nickel based alloys, their manufacture and their electrochemical applications
    Patent number: 4609599
    Abstract: The invention relates to lanthanum and nickel based alloys comprising components of the La Ni.sub.5 type where the lanthanum and/or nickel are partially substituted, the substituent element comprising a metal M chosen in the VI or VII group of the elements periodic system and this according to an atomic proportion comprised between 0.1 and 2 relative to nickel, and preferably between 0.5 and 1.The invention relates also to hydrogen electrodes made from such an alloy, and to an alkaline electrode type accumulator comprising such an electrode.
    Type: Grant
    Filed: May 18, 1981
    Date of Patent: September 2, 1986
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Annick Percheron nee Guegan, Jean-Claude Achard, Guy Bronoel, Joel Sarradin
  • Electrode materials based on lanthanum and nickel, and electrochemical uses of such materials
    Patent number: 4107405
    Abstract: The invention relates to electro materials based on lanthanum and nickel having a formula close to LaNi.sub.5 in which one of the components is partially substituted by a metal selected from those in groups Ia, II, III, IV and Va of the periodic table of elements, and other than lanthanides, in an atomic proportion which is not zero, being higher than 0.1% and lower than 25%, and preferbly from 0.5% to 15% with respect to the lanthanum.
    Type: Grant
    Filed: May 21, 1976
    Date of Patent: August 15, 1978
    Assignee: Agence Nationale de Valorisation de la Recherche (ANVAR)
    Inventors: Annick Percheron born Guegen, Jean Claude Achard, Jean Loriers, Maurice Bonnemay, Guy Bronoel, Joel Sarradin, Louis Schlapbach