Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5514263 | Process for the recovery of metallic lead from battery paste | Rudolf Johannes Mathilda Groenen | 1996-05-07 |
| 4975162 | Removal of cadmium from phosphoric acid-containing solutions | Karl R. Engels, Arjen Nieuwhof | 1990-12-04 |