Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |