Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8580115 | Method for cleaning filtration membrane modules and membrane bioreactor system for treating untreated water or wastewater or activated sludge | Stefan Krause, Reinhard Voigt | 2013-11-12 |
| 5256384 | Activated carbon process for removing hydrogen sulfide from gases | Dietrich Rolke, Rainer Lell, Klaus Stetzer, Gabriele Neuroth | 1993-10-26 |