Issued Patents All Time
Showing 1–1 of 1 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, Qianqian Sun, Xiaomei Zhang, Zhuo Liu, Xinmin Zhan +1 more | 2019-03-26 |