Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11891864 | Pipe handling arm | Robert Benjamin Donnally | 2024-02-06 |
| 11035183 | Devices, systems, and methods for top drive clearing | Robert Benjamin Donnally, Jay John Thiessen | 2021-06-15 |
| 9441423 | Drilling rig masts and methods of assembly and erection | Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Hui SHENG, Yan Yu | 2016-09-13 |
| 8875911 | Drilling rig mast lift systems and methods | Robert Benjamin Donnally, Chunqiao Ren, Yan Yu, Peng Yue, Wei Wang | 2014-11-04 |
| 8549815 | Drilling rig masts and methods of assembly and erecting masts | Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Hui SHENG, Yan Yu | 2013-10-08 |
| 8468753 | Drilling rigs and erection methods | Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Hui SHENG, Yan Yu | 2013-06-25 |
| 8047303 | Drilling rig drawworks installation | Robert Benjamin Donnally, Chunqiao Ren, Stuart Arthur Lyall McCurdy, Hui SHENG, Yan Yu | 2011-11-01 |