Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6101739 | Method and apparatus for treating exhaust gases of thermal drying processes and particularly processes for drying sewage sludge | Andreas Rutz | 2000-08-15 |
| 5427517 | Apparatus for pelletizing dehydrated paste material, especially sludge | Richard Hehle, Andreas Rutz | 1995-06-27 |