Issued Patents 2023
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11845631 | Synchronizing assembly for elevator door and elevator | Zhiren Liu, Yunbin Cai, Jinkoo Lee, Michael J. Tracey | 2023-12-19 |
| 11724916 | Interlock assembly for elevator door and elevator system | Honglei Qu, Fei Long, Yaxin Zhang | 2023-08-15 |