Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7467574 | Versatile folding ratchet tool | — | 2008-12-23 |
| 6554289 | Anti-slip type electric drill chuck | — | 2003-04-29 |
| 6517295 | Power drill housing and chuck rotation | — | 2003-02-11 |
| 6517299 | Cutter holder for cutting metal-working machine | — | 2003-02-11 |
| 5992859 | Bit holding system for a power hand tool | — | 1999-11-30 |
| 5970553 | Wrench hammer set | — | 1999-10-26 |
| 5944328 | Chuck | Wen-Chin Kuo | 1999-08-31 |
| 5934690 | Chuck unit of a power hand tool | — | 1999-08-10 |
| 5927158 | Combination ratchet wrench | — | 1999-07-27 |