Patents by Inventor Louis-Rene Allemand

Louis-Rene Allemand 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).

  • Optical fibers with plastic core and polymer cladding
    Patent number: 4552431
    Abstract: Described are optical fibers having a core of plastic material, such as polystyrene, and a polymer covering of vinyl acetate or a fluorine-containing derivative of vinyl acetate, and a process for producing the same by drawing a bar of the same materials.
    Type: Grant
    Filed: September 1, 1983
    Date of Patent: November 12, 1985
    Assignee: Commissariat a l'Energie Atomique
    Inventors: Louis-Rene Allemand, Jean Calvet, Jean-Claude Cavan, Jean-Claude Thevenin