Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8623944 | Plasticizer, a biodegradable material comprising the plasticizer and application thereof | Hsiu-Yu Cheng, Guang-Way Jang, Yin-Ju Yang | 2014-01-07 |
| 6276014 | Tool coupler/knife combination | — | 2001-08-21 |
| 6148701 | Tool handle with high driving torque | — | 2000-11-21 |
| 6106133 | Illumination device for a ratcheting tool | — | 2000-08-22 |
| D426135 | Tool handle | — | 2000-06-06 |