Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6319407 | Method and system for purification of waste water | Matti Viitasaari, Antonio Carlos Villarreal | 2001-11-20 |
| 4861519 | Method for volume reduction of low activity organic wastes from nuclear power plants by anaerobic decomposition | Esko Tusa, Antti Ruuskanen | 1989-08-29 |
| 4613434 | Device for treatment of wastewater by means of anaerobic fermentation | — | 1986-09-23 |