Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004298 | Method of rapidly abandoning large cavities washed-out in rock salt | Alain Boulanger | 1991-04-02 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5004298 | Method of rapidly abandoning large cavities washed-out in rock salt | Alain Boulanger | 1991-04-02 |