Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11325810 | Traction sheave safety device and elevator car emergency stop method thereof | Jianwen Cao, He Zhang, Wenna Fang, Wei Zhou, Yu Cao +2 more | 2022-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11325810 | Traction sheave safety device and elevator car emergency stop method thereof | Jianwen Cao, He Zhang, Wenna Fang, Wei Zhou, Yu Cao +2 more | 2022-05-10 |