Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12215580 | Differential pressure sliding sleeve, and oil and gas well fracturing construction method using same | Shunqu Hu, Yongmao Lin, Wei Zhao, Wei Lei, Zhi Xie +4 more | 2025-02-04 |
| 11933138 | Sliding sleeve device | Zhimin Hou, Dan Hu, Qiang Wang, Yijun Zhou, Jiang Qian +4 more | 2024-03-19 |
| 11885201 | Sliding sleeve | Zhenwei Gan, Bin Qi, Shunqu Hu, Zhimin Hou, Yongmao Lin +4 more | 2024-01-30 |
| 11236590 | Device for jet packing and fracturing and tubular column comprising same | Zhenwei Gan, Bin Qi, Zhimin Hou, Shunqu Hu, Wei Lei +4 more | 2022-02-01 |
| 8336993 | Print head with security assembly | CHANG-LUN TAI, HSING-YI HU | 2012-12-25 |