Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6873249 | Luminous alarm device | — | 2005-03-29 |
| 6481315 | Box and ratchet wheel arrangement for wrench | Sung-Hsiao Chang | 2002-11-19 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6873249 | Luminous alarm device | — | 2005-03-29 |
| 6481315 | Box and ratchet wheel arrangement for wrench | Sung-Hsiao Chang | 2002-11-19 |