Patents by Inventor Jean Phalippou

Jean Phalippou 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).

  • Glass-ceramic Li-Al-Si-O composition and process for its production
    Patent number: 5232877
    Abstract: In the process according to the invention, a gel is prepared by hydrolysis and polycondensation of precursor compounds which comprise at least silicon alcoholate and aluminum alcoholate and inorganic compounds of lithium and/or magnesium, the solvent is removed, and the gel obtained is subjected to a heat treatment resulting in dehydration and oxidation, then to compacting and ceramisization.The composition obtained is substantially in the form of solid ceramic solutions, such as .beta.-spodumene, cordierite and mullite.
    Type: Grant
    Filed: March 30, 1992
    Date of Patent: August 3, 1993
    Assignee: Office National d'Etudes et de Recherches Aerospatiales
    Inventors: Guy Larnac, Jean Phalippou, Michel Parlier, Marie-Helene Ritti, Jean Jamet