Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12411030 | Forward and reverse bidirectional flow rate measurement method for subsea chemical agent injection device | Haodong Chen, Xiaowei Ma, Chunmin Zeng, Guangfu Li, Yanzhi Pan +4 more | 2025-09-09 |
| 11255745 | Test device for simulating longitudinal-lateral-torsional coupled nonlinear vibration of drill string of deepwater riserless drilling and method therefor | Jun Liu, Xiaoqiang Guo, Qingyou Liu, Yufa He, Linlin Zeng +1 more | 2022-02-22 |