Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7207507 | Process and apparatus for the granulation of sludges | Christoph Aichinger, Alfred Aigner, Guenter Schrey | 2007-04-24 |
| 7185835 | Method and device for granulating slurry and/or powdered material | Christoph Aichinger, Alfred Aigner, Guenter Schrey | 2007-03-06 |
| 6287363 | Method of utilizing dusts produced during the reduction of iron ore | Herbert Grunbacher, Gunter Schrey, Franz Zettl | 2001-09-11 |