Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1054530 | Spray gun | — | 2024-12-17 |
| 11981006 | Nail gun punching needle clutch mechanism | Wenping Liu | 2024-05-14 |
| 9631450 | Surface layer conductor running tool for deep-water well drilling | Baojiang Sun, Ning Zhang, Hao Li, Yonghai Gao, Mingzhao Huang +1 more | 2017-04-25 |
| 9605499 | Subsea wellhead pressure indicating and automatic adjusting device for deep-water dual-gradient drilling | Baojiang Sun, Zhennan Zhang, Zhiyuan Wang, Ning Wang, Xuerui Wang +1 more | 2017-03-28 |