Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12196725 | Evaluation apparatus for seal integrity of wellbores in full life cycle and evaluation methods thereof | Duo Hou, Zhongling Xiao, Huabo Yang, Jian Ren, Taihe Shi | 2025-01-14 |
| 11828733 | Device for testing strength and sealing performance of cement sheath after perforation and using method thereof | Duo Hou, Zhongling Xiao, Jian Dong Ding, Jiawei Wang, Taihe Shi | 2023-11-28 |
| 11749985 | Method and device for timing in time-varying distance protection based on multiple lines in tower | Zexin Zhou, Tianhua LI, Hong-Xi Cao, Yarong Guo, Xingguo Wang +3 more | 2023-09-05 |
| 11733121 | Sealing integrity evaluation device for high-temperature and high- pressure casing-cement ring-formation and method thereof | Duo Hou, Huali Zhang, Yufei Li, You Wu, Lin Zhang +4 more | 2023-08-22 |
| 11630043 | Experimental devices for simulating erosion of tubing strings caused by sand production | Jie Yang, You Wu, Jian Dong Ding, Jiawei Wang | 2023-04-18 |
| 11624022 | Preparation method for the plant-based nano corrosion inhibition bactericide for oilfield and application thereof | Xiankang Zhong, Haonan LI, Junying Hu, Li Zhou, Xi YUAN +1 more | 2023-04-11 |
| 11583822 | Intermediate gas concentration-regulating piston pressure device for high-temperature autoclave and gas distribution method | Jinming Liu, Huali Zhang, Yufei Li, Jiawei Wang, Duo Hou +6 more | 2023-02-21 |
| 11440751 | Reaction vessel pickup mechanism, automatic loading device, sample analyzer, and loading method | Zhengguo Wang, Yanwen Weng, Changan Wang, Jun Wang | 2022-09-13 |
| 11378501 | Rotary fatigue tester with complex loads | Yuanjin Zhao, Duo Hou, Nan Cai, Xiankang Zhong, Pengfei Sang +3 more | 2022-07-05 |
| 9836535 | Method and system for content retrieval based on rate-coverage optimization | Haohong Wang, Guanghan Ning, Xiaobo Ren | 2017-12-05 |
| 9807453 | Mobile search-ready smart display technology utilizing optimized content fingerprint coding and delivery | Haohong Wang, Guanghan Ning, Xiaobo Ren | 2017-10-31 |
| 9704425 | Gamma curve adjustment method and gamma curve adjustment apparatus | Lijun Xiao, Liyan Wang, Weiwei Huo | 2017-07-11 |