Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5064625 | Method of removing nitrogen oxides from flue gases | — | 1991-11-12 |
| 4780290 | Method for purifying flue gas | — | 1988-10-25 |
| 4330411 | Process for treating clarified sludge | Gerd Florin, Arthur Dentler | 1982-05-18 |
| 4304049 | Process for thermal treatment, especially drying | — | 1981-12-08 |