Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929877 | Battery device | Hsin-Chang Lan | 2005-08-16 |
| 4616549 | Music playing device | — | 1986-10-14 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6929877 | Battery device | Hsin-Chang Lan | 2005-08-16 |
| 4616549 | Music playing device | — | 1986-10-14 |