Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5112585 | Process of removing flue gas cleaning residues during the wet cleaning of flue gases by drying and construction | Ortwin Batsch, Wilhelm Hempelmann, Hans Leibold | 1992-05-12 |
| 4793831 | Process for purifying flue gases | Wilhelm Hempelmann | 1988-12-27 |