Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9752824 | Low-temperature device for separating and purifying gas based on small-sized low-temperature refrigerating machine | Wenqing Dong, Wei-Min Chao, Jie Chen, Ao Li | 2017-09-05 |
| 9353977 | Pulse tube refrigerator with an automatic gas flow and phase regulating device | Ao Li, Wenqing Dong, Wei-Min Chao, Jie Chen | 2016-05-31 |