Issued Patents All Time
Showing 26–33 of 33 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7637392 | Electric caulking gun | Chen-Chen Cheng, Rui-Heng Lin | 2009-12-29 |
| 7121362 | Electrical hand tool with a position adjustable battery pack | Chen-Chen Cheng | 2006-10-17 |
| D508387 | Cordless electric ratchet wrench | Yu-Min Su, Chen-Chen Cheng | 2005-08-16 |
| 6915721 | Cordless ratchet wrench | Yu-Min Su, Chen-Chen Cheng | 2005-07-12 |
| D506375 | Cordless electric ratchet wrench | Yu-Min Su, Chen-Chen Cheng | 2005-06-21 |
| 6802623 | Light seat for a portable light with an adjustment capability for a light fixture | Simon Wu | 2004-10-12 |
| 6716095 | Cordless surface dresser | Kun Li | 2004-04-06 |
| 6123235 | Caulking gun | — | 2000-09-26 |