Issued Patents 2024
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12122640 | Heating control device and method for escalator system or moving sidewalk system | Lifei Cheng, Kaisheng Xu, Zhaoxia Hu | 2024-10-22 |
| 11993486 | Apparatus and method for controlling passenger transportation device | Lifei Cheng, Zhaoxia Hu | 2024-05-28 |