Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8668478 | Compressor having a shutdown valve | Xiaogeng Su, Weihua Guo, Xiaomin Qu | 2014-03-11 |
| 7959421 | Compressor having a shutdown valve | Xiaogeng Su, Weihua Guo, Xiaomin Qu | 2011-06-14 |
| 7568897 | Scroll machine with seal | Walter T. Grassbaugh, John D. Prenger, Christopher Stover, Xiaogeng Su | 2009-08-04 |
| 7338265 | Scroll machine with single plate floating seal | Walter T. Grassbaugh, John D. Prenger, Christopher Stover, Xiaogeng Su | 2008-03-04 |