Issued Patents 2019
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10496591 | Converting a mode controlling differential signal in a drive circuit and a driving method | Junming Han, Bingzhao Zhang, Jie Peng | 2019-12-03 |
| 10233695 | Weight-on-bit self-adjusting drill bit | Zhichuan Guan, Huaigang Hu, Ben Guan, Yucai Shi, Hualin Liao | 2019-03-19 |