Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11505426 | Brake device, a test method for the brake device and an elevator system | Guosong Li, Zixu Zhang | 2022-11-22 |
| 11255832 | Device and method for determining solubility of elemental sulfur in sulfur-containing gas | Li Wang, Zhao Ding, Fusen Xiao, Dihong Zhang, Daqing Tang +7 more | 2022-02-22 |