Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10172382 | Bean roasting device | — | 2019-01-08 |
| 6971807 | Waterproof keyboard | Ching-Cheng Tsai | 2005-12-06 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10172382 | Bean roasting device | — | 2019-01-08 |
| 6971807 | Waterproof keyboard | Ching-Cheng Tsai | 2005-12-06 |