Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6451250 | Method for operating a sintering plant | Horst Spielmann | 2002-09-17 |
| 6368566 | Flue gas pipe and method for treating flue gas | Andreas Klatt, Horst Spielmann, Christoph BRANDT, Werner Niggeschmidt | 2002-04-09 |