Patents by Inventor Marie-Francoise Magnin nee Champeaud

Marie-Francoise Magnin nee Champeaud 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 the immobilization of ion exchange resins originating from the secondary circuits of pressurized water nuclear reactors and gas-cooled graphite-moderated reactors
    Patent number: 4834915
    Abstract: The present invention relates to a process for the immobilization of ion hange resins originating from the secondary circuits of pressurized water nuclear reactors and gas-cooled graphite-moderated reactors, wherein the ion exchange resins are saturated with a base, preferably sodium hydroxide, under conditions such that the pH of the medium is greater than about 9 and such as to favor the release of ammonia, after which the said resins are concreted with a hydraulic binder.
    Type: Grant
    Filed: February 16, 1988
    Date of Patent: May 30, 1989
    Assignee: Societe Anonyme: Societe Generale Pour les Techniques Nouvelles - SGN
    Inventors: Guy Magnin, Marie-Francoise Magnin nee Champeaud, Veronique Aubert, Claude Jaouen