Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234443 | Base for Christmas tree | Yuan-Hui Tsai | 2001-05-22 |
| 4399172 | Artificial tree construction | — | 1983-08-16 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6234443 | Base for Christmas tree | Yuan-Hui Tsai | 2001-05-22 |
| 4399172 | Artificial tree construction | — | 1983-08-16 |