Patents by Inventor Jean-Paul Gauchon

Jean-Paul Gauchon 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).

  • Degreasing composition and methods using same
    Patent number: 6475296
    Abstract: The present invention relates to a degreasing composition, to a liquid, to a gel and to a degreasing foam which comprise said composition. The composition according to the invention comprises a base, a polyethoxylated fatty alcohol, saturated or unsaturated, a copolymer of ethylene oxide and propylene oxide, and water. The invention also relates to a degreasing and/or decontamination process of a surface using said composition, said liquid, said gel, and/or said degreasing foam.
    Type: Grant
    Filed: January 25, 2001
    Date of Patent: November 5, 2002
    Assignees: Electricite de France, Commissariat A l'Energie Atomique, Compagnie Generale des Matieres Nucleaires
    Inventors: Jean-Paul Gauchon, Jacques Delagrange, Maria Faury, Bruno Fournel
  • Method of removing ruthenium contamination from a liquid radioactive effluent
    Patent number: 4379082
    Abstract: A method of removing ruthenium contamination from a radioactive liquid effluent, consisting in adding to said liquid effluent a reducing agent and copper ions, to form, in said effluent, a cuprous oxide precipitate on which the ruthenium is fixed, and subsequently separating the precipitate thus formed from the effluent, and an apparatus for performing this method.
    Type: Grant
    Filed: April 29, 1980
    Date of Patent: April 5, 1983
    Assignee: Commissariat a l'Energie Atomique
    Inventor: Jean-Paul Gauchon