Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9062509 | Forced cooling circulation system for drilling mud | Youhong Sun, Wei Guo, Huiwen Xu, Qinghua Wang, Chen Chen +4 more | 2015-06-23 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9062509 | Forced cooling circulation system for drilling mud | Youhong Sun, Wei Guo, Huiwen Xu, Qinghua Wang, Chen Chen +4 more | 2015-06-23 |