| 12234122 |
Authorization management and authorization request of elevator service request |
Yang Yang, Yu Zhang, Kai Li, Siqi Ma |
2025-02-25 |
| 12043517 |
Authorization management and authorization request of elevator service request |
Kai Li, Siqi Ma, Yang Yang |
2024-07-23 |
| 11939186 |
Wireless signal device, system and method for elevator service request |
Kai Li, Shenhong Wang, Siqi Ma, Fu Qi |
2024-03-26 |
| 11708237 |
Communication for elevator service request |
Kai Li, Fu Qi, Siqi Ma, Hui Chen |
2023-07-25 |
| 11524866 |
Testing for wireless beacons of elevator system and field installation of the elevator system |
Kai Li, Yang Yang, Siqi Ma, Yu Zhang |
2022-12-13 |