Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6946074 | Method for biological cleaning of wastewater | Thomas Welander | 2005-09-20 |
| 6126829 | Biofilm carrier for water and waste water purification | Lars Ake Hans Gunnarsson, Thomas Welander, Anders Erik Lofquist | 2000-10-03 |