Issued Patents 2018
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10041298 | Detachable combined-type drive key for rotary drilling rig power head | Ju Luo, Zhonghai Zhang, Jiguang Zhang, Jingwei He, Caifeng WEI | 2018-08-07 |
| 10006796 | Device, container and method for measuring liquid volume in container based on air pressure sensing | — | 2018-06-26 |
| 9963277 | Cup cover with quick locking function and cup | YaFeng Bao | 2018-05-08 |