Issued Patents 2016
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9341028 | Counterweight assembly for a self-propelled derrick rig assembly | Stuart Buckingham | 2016-05-17 |
| 9238945 | Base beam and self-propelled derrick rig assembly | Stuart Buckingham, Dmitry Spivak, Tim Berg | 2016-01-19 |