Patents by Inventor Rene Stefani

Rene Stefani 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).

  • Method for controlling the migration of a chemical species within a solid substrate
    Patent number: 4193003
    Abstract: The method for controlling the migration of an electronegative chemical species within a solid substrate which exhibits ionic conduction consists in irradiating the substrate with electrons which have sufficient energy to penetrate into the substrate and to produce therein metastable excited negative ions of said species and in applying to said substrate an electric field having a direction opposite to the desired direction of migration.
    Type: Grant
    Filed: April 11, 1978
    Date of Patent: March 11, 1980
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Bruno Blanchard, Claude Legressus, Daniel Massignon, Rene Sopizet, Rene Stefani