Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6348147 | Fluid flow system for floating biological contactor | — | 2002-02-19 |
| 6344144 | High-capacity bio-block aeration system for stimulating enhanced bio-activity in aerobic wastewater treatment processes | Klaus Siebert | 2002-02-05 |