Issued Patents All Time
Showing 51–52 of 52 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5855040 | Hinge structure of rotary door | — | 1999-01-05 |
| 5831555 | Keyboard encoding system actuated by opening and closing of keyboard cover | Der-Jang Yu, Yi-Kai Wang, Chun-Pin Huang | 1998-11-03 |