Issued Patents 1982
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4350671 | Method of preparing phosphoric acid by a wet process | Bernard Bigot | 1982-09-21 |
| 4317807 | Air cooling during the production of phosphoric acid | Dominique Lizee, Bernard P. C. Sohier | 1982-03-02 |