Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6581336 | Waste water collection arrangement | Timo Anttalainen, Raimo Astikainen, Pentti Koskela, Veikko Laisi, Pertti Päätalo +1 more | 2003-06-24 |
| 5319902 | Mass tower and method of making the same | — | 1994-06-14 |
| 4877424 | Method and apparatus for separating solids from a solids-gas mixture | Markku Perkola | 1989-10-31 |