Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5045115 | Method for treating solid residues containing heavy metals from combustion plants | Arnold Gmunder, Jorg Wiedersheim | 1991-09-03 |
| 4231862 | Method for the preservation of an activated sludge | Roberto Mona | 1980-11-04 |