Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4541976 | Method of manufacturing cylindrical ceramic tubes having localized imprints on their inner faces | Jean Batigne, Claude Deslandes, Jacques Gillot | 1985-09-17 |
| 4356215 | Method of manufacturing supports for porous filters | Alain Auriol | 1982-10-26 |