Issued Patents 1997
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650069 | Dual-stage biological process for removing nitrogen from wastewater | Sun-Nan Hong, O. Roy Langslet | 1997-07-22 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650069 | Dual-stage biological process for removing nitrogen from wastewater | Sun-Nan Hong, O. Roy Langslet | 1997-07-22 |