Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11208043 | Vehicle and vehicle step apparatus with multiple drive motors | Xinfa Du, Qi Zhang | 2021-12-28 |
| 11198394 | Vehicle running board apparatus and retractable device thereof | Xinfa Du, Qi Zhang, Songfeng Wang, Yongyong ZHAN, Tao He +1 more | 2021-12-14 |
| 11021108 | Vehicle and vehicle step apparatus with multiple drive motors | Xinfa Du, Qi Zhang | 2021-06-01 |
| 10923111 | Speech detection and speech recognition | Xing Fan, I-Fan Chen, Yuzong Liu, Bjorn Hoffmeister, Tongfei Chen | 2021-02-16 |