Patents by Inventor Frederic Roulet

Frederic Roulet 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).

  • SINTERED CERAMIC PRODUCT HAVING A NITROGENOUS MATRIX WITH IMPROVED SURFACE PROPERTIES
    Publication number: 20090035558
    Abstract: The sintered ceramic product comprises a granular material bound by a nitrogenous mold. According to the invention, at least one anti-dust agent selected among calcium and boron exists in a surface layer of the product, the mass ratio of all the anti-dust agents in the surface layer being greater than that measured underneath this layer. This product advantageously has a reduced ratio of non-adherent particles to its surface.
    Type: Application
    Filed: October 27, 2006
    Publication date: February 5, 2009
    Applicant: Saint-Gobain Centre De Recherches ET D'Etudes Europeen
    Inventors: Eric Jorge, Frederic Roulet, Jacques Schoennahl