Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6187258 | Operating method and device for a shaft furnace | Juergen Schmidt, Gerhard Von Hoesslin | 2001-02-13 |
| 5503548 | Method for reducing pollutant gas emissions in combustion and burner therefor | Heinz Franke, Michael Pfeuster | 1996-04-02 |