Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11191255 | Premixed ventilated henhouse | Changwu Li, Feng XIAO, Longhai Liu, Jianmin Wang, He Huang +3 more | 2021-12-07 |
| 11147244 | Premixed underground ventilated henhouse | Changwu Li, Feng XIAO, Longhai Liu, Jianmin Wang, He Huang +3 more | 2021-10-19 |