Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11701989 | Reversible headrest | Min Zhu, Xia Li, Donghai Xu | 2023-07-18 |
| 11548422 | Self-reset adjusting mechanism | Donghai Xu, Xia Li, Min Zhu | 2023-01-10 |
| 10046680 | Four-direction headrest | Biao Li, Min Zhu, Xia Li, Donghai Xu | 2018-08-14 |