Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5500328 | Recovery of photographic film base | Craig Lewis | 1996-03-19 |
| 5008017 | Method for recovering metals from waste liquors | Gary G. Kiehl | 1991-04-16 |
| 5008020 | Treatment of domestic and industrial waste waters | Gary G. Kiehl | 1991-04-16 |