Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6026663 | Long shackle padlock | Chang Chzn-Shu | 2000-02-22 |
| 5720191 | Padlock | Huang Tang-Cheng | 1998-02-24 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6026663 | Long shackle padlock | Chang Chzn-Shu | 2000-02-22 |
| 5720191 | Padlock | Huang Tang-Cheng | 1998-02-24 |