Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5062925 | Method of reducing the nitrogen dioxide content of flue gas from a coke oven with dual heating flues by a combination of external flue gas feed back and internal flue gas recirculation | Heinz Durselen, Gunter Meyer | 1991-11-05 |
| 4732652 | Clamping system for coke oven heating walls | Heinz Durselen, Jurgen Neitzel, Walter Stanke | 1988-03-22 |
| 4202735 | Process for operating coking ovens and an oven for use in said process | Heinz Durselen, Franz-Josef Onnebrink | 1980-05-13 |