Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10442052 | Grinding stroke control device for a valve stem grinding apparatus | — | 2019-10-15 |
| 10418453 | Forming metal contacts on metal gates | Chao-Hsun Wang, Yu-Feng Yin, Kuo-Yi Chao, Mei-Yun Wang, Chen-Yuan Kao | 2019-09-17 |