Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4612057 | Recovery of silver from photographic films by high shear conditions | Thomas Rettig | 1986-09-16 |
| 4602046 | Recovery of polyester from scrap by high shear conditions | Thomas Rettig | 1986-07-22 |