Issued Patents 2017
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9850756 | Method and device for building underground storehouse by dissolving limestone with carbon dioxide | Yufei Wang, Jianfeng Liu, Lingzhi Xie, Ru Zhang | 2017-12-26 |
| 9714891 | Rock fixing device with hydraulic-spring combination and position-limiting chuck for direct tensile test | Jianfeng Liu, Yang Ju, Huining Xu, Lu Wang, Yangmengdi Xu +3 more | 2017-07-25 |
| 9574980 | Position-limit device with spring components for direct tensile test | Jianfeng Liu, Yang Ju, Yong Xiang, Huining Xu, Yangmengdi Xu +3 more | 2017-02-21 |