Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8915169 | Adjustable driving tool | Yeh-Ching Chang | 2014-12-23 |
| 8770071 | Electronic torque wrench with a rotatable display unit | Yeh-Ching Chang | 2014-07-08 |
| 8505596 | Cutter assembly for an electric pencil sharpener | Long-Jyi Yeh, Chiu-Hung Chung, Yao-Jen Lai, Chun-Peng Lin | 2013-08-13 |
| 8205649 | Cutter assembly and electric pencil sharpener | Long-Jyi Yeh, Chiu-Hung Chung, Yao-Jen Iai, Chun-Peng Lin | 2012-06-26 |
| D581466 | Correction tape | — | 2008-11-25 |
| 4925105 | Rechargeable garden sprayer | — | 1990-05-15 |