Patents by Inventor Gilles Biardeau

Gilles Biardeau 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).

  • Preparation of cubic boron nitride using as a flux a fluoronitride
    Patent number: 4810479
    Abstract: A process for producing cubic boron nitride comprises heating at an elevated temperature and under high pressure a source of boron and a source of nitrogen in the presence of a fluoronitride or a source of fluoronitride.
    Type: Grant
    Filed: April 15, 1987
    Date of Patent: March 7, 1989
    Assignee: Centre National de la Recherche Scientifique (CNRS)
    Inventors: Gilles Biardeau, Gerard Demazeau, Michel Pouchard