Issued Patents All Time
Showing 1–15 of 15 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12416224 | Active energy-absorbing shock absorber for perforation combined well testing | Liangliang Ding, Kai Wang, Hongtao Liu, Yongzhi Xue, Ruifeng Guo +2 more | 2025-09-16 |
| 12326084 | Intelligent directional device for full rotation of drill string | Yufeng Xie, Hengjing Zhang, Hongsheng Deng, Lin Yang, Qiaolin Li +2 more | 2025-06-10 |
| 12180808 | All-metal intelligent control motor | Junyang Song, Lei Cha, Heng Li, Yanniu Ren, Chunyu Xing +2 more | 2024-12-31 |
| 11927077 | High-frequency composite impactor | Lanhui Mao, Yanniu Ren, Lin Yang, Haolin Song, Bo He +4 more | 2024-03-12 |
| 11873689 | Integrated piling tool with continuous drilling and circulation pouring | Lei Tang, Yan Li, Chunyu Xing | 2024-01-16 |
| 11834928 | Drill string rotation controller for directional drilling | Haolin Song, Yinglin Yang, Yanniu Ren, Lin Yang, Zhe Zhang +4 more | 2023-12-05 |
| 11828149 | Fracking tool with electromagnetic intelligent control sliding sleeve | Yu Wei, Lanhui Mao, Yanniu Ren, Chunyu Xing, Junyang Song +2 more | 2023-11-28 |
| 11788407 | Downhole signal receiving and transmitting device | Changqing Xiong, Lei Tang, Haolin Song, Lanhui Mao, Lin Yang | 2023-10-17 |
| 11608731 | Mechanical automatic vertical drilling tool | Tongxu Ge, Zhichao Hu, Lin Yang, Chunyu Xing, Lei Tang | 2023-03-21 |
| 11542753 | Mechanical rotary steering drilling tool | Zhichao Hu, Tongxu Ge, Lin Yang, Chunyu Xing, Lei Tang | 2023-01-03 |
| 11542751 | Multi-function drilling tool | Lei Tang, Zhichao Hu, Tongxu Ge, Lin Yang, Chunyu Xing | 2023-01-03 |
| 10822881 | Split roller cone and PDC composite drill bit | Yinglin Yang, Hongzhi He, Lin Yang, Jie Xiong, Yi Zhou +2 more | 2020-11-03 |
| 10329849 | Multi-functional drilling experiment platform | Zhi Yong Zhu, Ping Chen, Dejie Chen, Yanniu Ren, Qiang Wang | 2019-06-25 |
| 9828806 | Roller bit for rock breaking by rotary cutting | Liang Zhang, Shu Li, Defa Zeng | 2017-11-28 |
| 9562398 | Modular cutting-teeth drill bit with controllable drilling specific pressure | Liang Zhang, Shu Li, Defa Zeng | 2017-02-07 |