Issued Patents 2020
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10794136 | Reverse rotary sprinkler drilling pipe system with anti-sticking function and its application method | Yunliang Tan, Xuesheng Liu, Deyuan Fan, Qiang Xu, Bangyou JIANG +1 more | 2020-10-06 |