Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5807488 | Exchangeable filter medium container and method of connecting and recycling such containers | John Riviere, Denis BRUNELLE, Bernard Gravel | 1998-09-15 |
| 5792347 | Effluent precipitation and neutralization vessel and method | John Riviere | 1998-08-11 |
| 5783060 | Electrolytic metal recovery method | John La Riviere, Bernard Gravel | 1998-07-21 |
| 5753099 | Metal recovery | Bernard Gravel, John LaRiviere | 1998-05-19 |
| 5310466 | Electrolytic metal recovery system | John La Riviere, Bernard Gravel | 1994-05-10 |