Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10239774 | Natural pyrrhotite biological filter and method for utilizing same to synchronously remove nitrate-nitrogen and phosphorus from water | Ruihua Li, Junsong Hu, Qianqian Sun, Xiaomei Zhang, Zhuo Liu +1 more | 2019-03-26 |
| 8431025 | Method and apparatus for biologically processing fluid | Michael Rodgers, John Mulqueen, Edmond O'REILLY | 2013-04-30 |