Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688730 | Optically transparent gamma-aluminum oxynitride powders and ceramic articles shaped therefrom | Roland Bachelard, Jean-Pierre Disson | 1997-11-18 |
| 5662875 | Continuous process for the preparation of silicon nitride by carbonitriding and silicon nitride thereby obtained | Roland Bachelard, Jean-Pierre Disson | 1997-09-02 |