Issued Patents All Time
Showing 1–25 of 25 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11952844 | Tubular string building system and method | Xilin Liu | 2024-04-09 |
| 11891864 | Pipe handling arm | Xi Lin Liu | 2024-02-06 |
| 11884520 | Mobile tower crane systems and methods | Anthony Jason Harms, Travis J. Miller | 2024-01-30 |
| 11795766 | Lubricator assembly and method for servicing tubular members | Andrew Ian McKenzie, Lei Cheng, George Wu, Leo Yang | 2023-10-24 |
| 11754048 | Tower erection system | Farzad Azizi, Travis J. Miller, Anthony Jason Harms | 2023-09-12 |
| 11613940 | Devices, systems, and methods for robotic pipe handling | Andrew Ian McKenzie | 2023-03-28 |
| 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 |
| 10851595 | Shipping arrangement and assembly procedure for drilling rig structures | Colin Guo | 2020-12-01 |
| 9488013 | Bi-directionally raisable drilling rig mast | Chunqiao Ren, Xilin Liu | 2016-11-08 |
| 9441423 | Drilling rig masts and methods of assembly and erection | Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui SHENG, Yan Yu | 2016-09-13 |
| 9163462 | Bi-directionally raisable drilling rig mast | Chunqiao Ren, Xilin Liu | 2015-10-20 |
| 8904716 | Bi-directionally raisable drilling rig mast | Chunqiao Ren, Xilin Liu | 2014-12-09 |
| 8875911 | Drilling rig mast lift systems and methods | Chunqiao Ren, Xi Lin Liu, Yan Yu, Peng Yue, Wei Wang | 2014-11-04 |
| 8863449 | Substructure of a mobile drilling rig with a movable center floor section | Chunqiao Ren, Xilin Liu | 2014-10-21 |
| 8813436 | Pinned structural connection using a pin and plug arrangement | Liu Xi Lin, Guo Hou | 2014-08-26 |
| 8549815 | Drilling rig masts and methods of assembly and erecting masts | Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui SHENG, Yan Yu | 2013-10-08 |
| 8468753 | Drilling rigs and erection methods | Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui SHENG, Yan Yu | 2013-06-25 |
| 8250816 | Drilling rig structure installation and methods | Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liui, Hui SHENG, Yan Yu +1 more | 2012-08-28 |
| 8047303 | Drilling rig drawworks installation | Chunqiao Ren, Stuart Arthur Lyall McCurdy, Xi Lin Liu, Hui SHENG, Yan Yu | 2011-11-01 |
| 7234896 | Vertically folding service arm for a movable platform offshore drilling or servicing rig | Neil Fehres | 2007-06-26 |
| 5423390 | Pipe racker assembly | Baldwin Zahn | 1995-06-13 |
| 4961562 | Apparatus for engaging beams | — | 1990-10-09 |
| 4932175 | Telescopic drilling derrick apparatus | — | 1990-06-12 |
| 4339225 | Power shovel crowd drive assembly | Mark W. Trevithick | 1982-07-13 |