Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11981369 | Chassis structure for an electric power wheelchair | — | 2024-05-14 |
| 9335783 | Controller shifting device | Chih-Chuan Yang, Cheng-Jy Tien | 2016-05-10 |
| D745443 | Wheelchair shroud | Chih-Chuan Yang, Cheng-Jy Tien | 2015-12-15 |