Patents by Inventor Gilles H. Fonteneau

Gilles H. Fonteneau 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).

  • Indium-based fluoride glasses and their preparation
    Patent number: 4749666
    Abstract: Fluoride glasses comprise at least one fluoride of each of the following five categories:______________________________________ Fluorides Molar amount % ______________________________________ M.sup.1 F.sub.3 u M.sup.2 F.sub.4 v M.sup.3 F.sub.2 w M.sup.4 F.sub.3 x M.sup.5 F.sub.2 y ______________________________________wherein M.sup.1 represents In or Ga; M.sup.2 represents Th or U; M.sup.3 represents Ba or Pb; M.sup.4 represents Y, Yb or Lu; M.sup.5 represents Zn or Mn; and wherein u=25-35; v=5-12; w=25-35; x=5-12; and y=15-30; and optionally, at least one adjuvant or dopant present in a molar percent, z, wherein z=0-4. This composition is capable of providing, by casting in the molten state, followed by cooling, pieces of glass having a thickness greater than 10 mm. The specification also describes a method of producing these fluoride glasses.
    Type: Grant
    Filed: December 22, 1986
    Date of Patent: June 7, 1988
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Jacques Lucas, Gilles H. Fonteneau, Abdelmajid Bouaggad