Issued Patents 2021
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11136491 | Iron sulfide removal in oilfield applications | Tao Chen, Fakuen Frank Chang | 2021-10-05 |
| 11056498 | Semiconductor device and manufacturing method therefor | Jinshuang Zhang, Haoyu Chen, Feng Ji | 2021-07-06 |
| 11041378 | Method and apparatus for detection of pitting corrosion under iron sulfide deposition | Tao Chen, Fakuen Frank Chang | 2021-06-22 |
| 10983317 | Compact, lightweight optical imaging system having free-form surface and common optical axis direction | Dewen Cheng | 2021-04-20 |