Issued Patents 2021
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11035183 | Devices, systems, and methods for top drive clearing | Xi Lin Liu, Jay John Thiessen | 2021-06-15 |
| 10961780 | Systems and methods for raising drilling rig assemblies | Fuquan Chen, Hua Jiang | 2021-03-30 |