Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5051040 | Fluidized bed combustion system that is controllable under pressure | Raimund Croonenbrock, Horst Muller, Hubert Steven | 1991-09-24 |
| 4739729 | Coal-fired steam generator | Wulf Rettemeier, Horst Muller | 1988-04-26 |