Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4663046 | System to clear particles from outlet in activated sludge process | Hans-Peter Riquarts | 1987-05-05 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4663046 | System to clear particles from outlet in activated sludge process | Hans-Peter Riquarts | 1987-05-05 |