Issued Patents 2022
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11524867 | Determination of non-normal elevator calling request in an automatic elevator calling request system | Wenbo Huang, Xiaofei Guo, Haiyan Xue, Renxiang Chen, Heping Qiu +2 more | 2022-12-13 |