Patents by Inventor Jean-Rene' Puig

Jean-Rene' Puig 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 of fabrication of porous macromolecular materials having an internal lining and materials obtained by means of said method
    Patent number: 4115303
    Abstract: The method of fabrication of porous macromolecular materials which are primarily intended for use as ion-exchange membranes and selective semi-permeable membranes consists in subjecting a polymer to irradiation with heavy nuclear particles, in chemically fixing a monomer having at least one ethylene double bond in the zones which are modified by irradiation and localized around the locus of passage of each particle and in forming the pore structure by means of a chemical attacking agent which is specific to the starting polymer.
    Type: Grant
    Filed: May 24, 1976
    Date of Patent: September 19, 1978
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Joseph Marchand, Jean-Rene' Puig