Issued Patents 2020
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10800686 | Apparatus and method for removing nitrogen and phosphorus from sewage by using sponge iron and activated sludge | Dongyang Wei, Yonggang Wu, Xiang Wei, Wenting JIANG, Tao He +3 more | 2020-10-13 |
| D888230 | Desktop oral irrigator | Jinfeng Li, Gang Wang, Qing Zhang, Xinquan Liu | 2020-06-23 |