Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12378462 | Sealing gel with delayed gelation for well cementation, preparation method, and application | Huajie Liu, Yuhuan Bu, Doudou Wang, Shenglai Guo | 2025-08-05 |
| 12322418 | Vinyl record player automatic stop and lift tonearm structure | Shen-Keng Liu, Hsi-Ping Wang | 2025-06-03 |
| 12071587 | Anti-corrosion and low-heat-conduction annulus protection fluid for deep-sea oil and gas exploitation and preparation method thereof | Yuhuan Bu, Shaorui Jing, Shenglai Guo, Huajie Liu, Heng YANG | 2024-08-27 |
| 11905812 | Intra-layer reinforcement method, and consolidation and reconstruction simulation experiment system and evaluation method for gas hydrate formation | Yuhuan Bu, Huajie Liu, Dong Lin, Shenglai Guo, Xinyang Guo +4 more | 2024-02-20 |
| 11866367 | Oil well cement composite permeation enhancement agent suitable for hydrate layer and preparation method | Huajie Liu, Shenglai Guo, Yuhuan Bu, Changyou Xiang, Qiang Wang +1 more | 2024-01-09 |
| 11820936 | Scour-resistant interface enhancer used for well cementing of coalbed methane wells, preparation method, and application | Shenglai Guo, Yuhuan Bu, Lingyun Zhao, Yuanlong Wei, Qi Zhao +3 more | 2023-11-21 |
| 11719658 | Method of cement for well cementing in penetrated hydrate layer | Yuhuan Bu, Shengda Shen, Huajie Liu, Shenglai Guo, Xun Shan +1 more | 2023-08-08 |
| 11594245 | Bifunctional turntable | Shen-Keng Liu | 2023-02-28 |
| 11567018 | Cement performance evaluation device and cement design method for cementing in penetrated hydrate deposit | Huajie Liu, Yuhuan Bu, Shenglai Guo, Xinyang Guo, Shengda Shen +1 more | 2023-01-31 |
| 11391151 | Automatic coal mining machine and fluidized coal mining method | Yang Ju, Heping Xie, Yong Zhang, Yan Zhu, Feng Gao +5 more | 2022-07-19 |
| 10975694 | Mine field layout method suitable for fluidized mining of coal resources | Yang Ju, Heping Xie, Yong Zhang, Yan Zhu, Feng Gao +5 more | 2021-04-13 |
| 10731962 | Transparent constraint apparatus for normal deformation of planar model | Yang Ju, Peng Liu, Zhangyu Ren, Hongbin Liu, Xiaolan Li +3 more | 2020-08-04 |