Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12398640 | Method for calculating wellbore friction resistance of foam drainage gas production well | Chengcheng Luo, Pengbo Wu, Yonghui Liu, Yu Shi, Yang Liu +3 more | 2025-08-26 |
| 9462645 | LED driver circuit with stepwise adjustable power and LED lighting tube | Wenhong Ling | 2016-10-04 |