Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D769341 | Machine casing | Chien-Hua Lee | 2016-10-18 |
| 9187796 | Inner-diameter quenching device | Shih-Tien Chang | 2015-11-17 |
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D769341 | Machine casing | Chien-Hua Lee | 2016-10-18 |
| 9187796 | Inner-diameter quenching device | Shih-Tien Chang | 2015-11-17 |