Patents by Inventor Marylise Le Crom

Marylise Le Crom 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 centrifuging a halide glass and forming an optical fiber preform
    Patent number: 5779756
    Abstract: A method of fabricating a fluoride glass optical fiber preform which has a fluoride glass core surrounded by a fluoride glass optical cladding includes the following steps: introducing the cladding glass in the molten state into a bottom part of a mold having a cylindrical inside cross-section, introducing the core glass in the molten state into a top part of the mold above the cladding glass, and inwardly solidifying the core glass and the cladding glass from the interface between the glasses and the mold. The kinetics of solidification of the core glass are such that complete solidification of the cladding glass occurs before complete solidification of the core glass.
    Type: Grant
    Filed: June 19, 1997
    Date of Patent: July 14, 1998
    Assignee: Alcatel Alsthom Compagnie Generale d'Electricite
    Inventors: Frederic Chiquet, Marylise Le Crom, Jean-Jacques Girard