Issued Patents 2024
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12043999 | Drainage system for pressure-assisted flush water tank | Dongsheng Zhang, Shengjin Rao | 2024-07-23 |
| 11946240 | Water outlet box of pressure-type flushing system and toilet using the water outlet box | Xiping Li, Jun Huang, Dongsheng Zhang, Jianfu Wu, Jinding Dai | 2024-04-02 |
| 11905696 | Dual water-vessel flush structure and pressure-assisted toilet flush system | Dongsheng Zhang | 2024-02-20 |
| 11898336 | Drainage control device | Dongsheng Zhang, Shengjin Rao | 2024-02-13 |