Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4546821 | Heat exchanger with bulk material retarder system | — | 1985-10-15 |
| 4457695 | Burner for the combustion of powdery fuels | — | 1984-07-03 |
| 4188915 | Water-cooled, high-temperature gasifier | Heinz Dressen, Wilhelm Danguillier, Paul Gernhardt, Wolfgang Grams, Siegfried Pohl | 1980-02-19 |