Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D534055 | Portion of a padlock | Chi-Chang Tsai | 2006-12-26 |
| D497303 | Padlock | — | 2004-10-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D534055 | Portion of a padlock | Chi-Chang Tsai | 2006-12-26 |
| D497303 | Padlock | — | 2004-10-19 |