Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5173284 | Process for preparation of purified calcium sulfate in an aqueous medium | Alain Petit | 1992-12-22 |
| 4333766 | Calcium process for manufacturing silicate and/or aluminate based products | Claude Bonet, Alain Rouanet, Alain Petit, Robert Delmas | 1982-06-08 |