Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7207507 | Process and apparatus for the granulation of sludges | Christoph Aichinger, Alfred Aigner, Stefan Zettl | 2007-04-24 |
| 7185835 | Method and device for granulating slurry and/or powdered material | Christoph Aichinger, Alfred Aigner, Stefan Zettl | 2007-03-06 |
| 6395052 | Method for producing directly-reduced iron, liquid pig iron and steel | Herbert Gruenbacher | 2002-05-28 |
| 6293991 | Process for producing liquid pig iron comprising recirculating agglomerated sludges | Herbert Gruenbacher | 2001-09-25 |