Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688730 | Optically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefrom | Jean-Pierre Disson, Bruno Morlhon | 1997-11-18 |
| 5674465 | Continuous process for the preparation of aluminum nitride by the carbonitriding of alumina | Pierre Ravenel, Jean-Pierre Disson, Philippe Joubert | 1997-10-07 |
| 5662875 | Continuous process for the preparation of silicon nitride by carbonitriding and silicon nitride thereby obtained | Jean-Pierre Disson, Bruno Morlhon | 1997-09-02 |
| 5612267 | Ceramic preforms comprising monocrystalline hexagonal platelets of .alpha.- a | Annick Faure | 1997-03-18 |