Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8715502 | Hoss' 4-stage biological nutrient removal (BNR) activated sludge process for removal of total phosphate and total nitrogen to a level below 1.0 mg/l without any chemical coagulation process such as alum or ferric chloride used for phosphorous removal | — | 2014-05-06 |