Issued Patents 2004
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6793816 | Equipment for the leaching of solid matter from sludge | Yrjo Oinonen, Kurt Höglund | 2004-09-21 |
| 6770207 | Method for the leaching of solid matter from sludge | Yrjo Oinonen | 2004-08-03 |