Issued Patents 2023
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11834301 | Guide device for an elevator car and elevator system | Bichun Li, Yunru Chen | 2023-12-05 |
| 11827495 | Mounting bracket for guiding rail of elevator and mounting method thereof, locating apparatus, bracket adjusting apparatus and elevator system | Bichun Li, Qirui Wang, Gang Huang | 2023-11-28 |
| 11787660 | Brake monitoring circuitry, elevator system and brake monitoring method | Bichun Li | 2023-10-17 |
| 11780706 | Modular elevator assembly and rail | Qirui Wang, Bichun Li | 2023-10-10 |
| 11667496 | Roller system, roller braking device and elevator system | Bichun Li | 2023-06-06 |