Issued Patents 2021
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11149496 | Coupling apparatus for coiled tubings of different diameters, installing method for coupling apparatus, and installing method for tubings of different diameters using coupling apparatus | Dexin Pang, Xinwei Guo, Qian Zhao, Jianlei WANG, Wenxin Yang +1 more | 2021-10-19 |