Patents by Inventor Fernand Fievet

Fernand Fievet 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 obtaining iron or iron-based powders by organic liquid phase precipitation
    Patent number: 5925166
    Abstract: The present invention relates to a process for obtaining an iron powder, which may incorporate nickel and/or cobalt, by organic liquid phase precipitation. This process comprises a stage of introducing metal precursors into a basic polyol or optionally simple alcohol solution, a stage of heating said reaction medium to obtain a metal precipitate and a stage of recovering and treating said precipitate to obtain the desired powder.
    Type: Grant
    Filed: January 29, 1997
    Date of Patent: July 20, 1999
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Guillaume Viau, Fernand Fievet, Fran.cedilla.oise Fievet
  • Process for the reduction of metallic compounds by polyols, and metallic powders obtained by this process
    Patent number: 4539041
    Abstract: A process for reducing in a liquid phase a solid compound selected from the oxide, hydroxide or salt of a metal selected from the group consisting of gold, palladium, iridium, osmium, copper, silver, nickel, cobalt, lead and cadmium comprises heating said solid compound suspended in a polyol and thereafter isolating the formed metallic precipitate.
    Type: Grant
    Filed: December 20, 1983
    Date of Patent: September 3, 1985
    Assignee: Universite Paris VII
    Inventors: Michel Figlarz, Fernand Fievet, Jean-Pierre Lagier