Issued Patents 2011
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913508 | Cooling device for interior and exterior surfaces of a mud pump liner | Jianxu Hao, Hongqian Luo, Huiling Zu | 2011-03-29 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7913508 | Cooling device for interior and exterior surfaces of a mud pump liner | Jianxu Hao, Hongqian Luo, Huiling Zu | 2011-03-29 |