Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7236311 | Manually adjustable apparatus for a zoom lens | Yi-Yuan Chen | 2007-06-26 |
| D495727 | Camera | James C. Dow, Eduardo Martres, Shelley I. Moore | 2004-09-07 |
| 5215352 | Adjustable seat assembly for a wheeled chair | Bean-Shung Yeh, Wu-Yaw Wei, Bee Su | 1993-06-01 |
| 5180025 | Wheeled-chair chassis with a suspension mechanism | Bean-Shung Yeh, Wu-Yaw Wei, Bean-Horng Su | 1993-01-19 |