Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8668478 | Compressor having a shutdown valve | Xiaogeng Su, Weihua Guo, Hanqing Zhu | 2014-03-11 |
| 7959421 | Compressor having a shutdown valve | Xiaogeng Su, Weihua Guo, Hanqing Zhu | 2011-06-14 |