Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9335783 | Controller shifting device | Eric Van Olst, Chih-Chuan Yang | 2016-05-10 |
| 9211222 | Seat mechanism of electric wheelchair | Eric Van Olst, Chih-Chuan Yang | 2015-12-15 |
| D745443 | Wheelchair shroud | Eric Van Olst, Chih-Chuan Yang | 2015-12-15 |
| 7413045 | Battery quick-release structure for an electric mobility scooter | — | 2008-08-19 |