Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| RE31179 | Method of processing waste sludge from wet phosphoric acid purification facilities | Peter Meurer, Martin Hater, Fritz Meininghaus | 1983-03-15 |
| 4300939 | Method of processing waste sludge from wet phosphoric acid purification acid purification facilities | Martin Hater, Fritz Meininghaus | 1981-11-17 |
| 4257898 | Method of processing waste sludge from wet phosphoric acid purification facilities | Peter Meurer, Martin Hater, Fritz Meininghaus | 1981-03-24 |