Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11577930 | Automatic elevator calling system and a method for controlling automatic calling elevator | Wenbo Huang, Xiaofei Guo, Haiyan Xue, Renxiang Chen, Lieping Wei +2 more | 2023-02-14 |