Issued Patents All Time
Showing 26–28 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6803129 | Organic light emitting diode and organic luminescent materials thereof | Chih-Hao Kung, Chung-Cheng Pai, Shwu-Ju Shieh, Tzu-Chin Tang | 2004-10-12 |
| 4887583 | Braking device for safety toy-gun | — | 1989-12-19 |
| 4780914 | Automatically lifting device for toilet seat | — | 1988-11-01 |