Issued Patents 2020
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10851647 | Downhole vibration and impact data recording method | Zhongxing Wang, Yongyou Yang, Qingyun Di, Wenxuan Chen, Tianxin Zhang +2 more | 2020-12-01 |
| D902884 | Portable Bluetooth speaker | — | 2020-11-24 |
| 10830037 | Constant amplitude adjusting method and system for pressure pulse of drilling tool | Jiansheng Du, Qingyun Di, Wenxuan Chen, Xinzhen He, Yongyou Yang | 2020-11-10 |
| D887396 | Wireless headset | Zhigang Deng, Fangfang Lan | 2020-06-16 |
| D887395 | Wireless headset | — | 2020-06-16 |
| D881572 | Earphone box | Zhigang Deng, Fangfang Lan | 2020-04-21 |
| D878048 | Earphone box | Zhigang Deng, Fangfang Lan | 2020-03-17 |
| 10578754 | Sinusoidal excitation method and apparatus for multi-pole acoustic logging while drilling | Yuntao Sun, Wenxuan Chen, Wenxiu Zhang, Yongyou Yang, Qingyun Di +1 more | 2020-03-03 |