Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11441369 | Fluid coupling drive system for a drill rig air compressor | Owen J. Warr | 2022-09-13 |
| 8596054 | Absorber-replenisher in a hydrostatic circuit | Neil Skoog | 2013-12-03 |
| 8453762 | Regenerative drive mechanism for hydraulic feed cylinders in hydrostatic or hydraulic circuits | Neil Skoog | 2013-06-04 |
| 7461712 | Track-mounted drilling machine with active suspension system | Ajay Kumar | 2008-12-09 |
| 7438143 | Track-mounted drilling machine with active suspension system | Ajay Kumar | 2008-10-21 |
| 7413036 | Sub drilling sub | Ajay Kumar | 2008-08-19 |
| 7325634 | Track-mounted drilling machine with active suspension system | Ajay Kumar | 2008-02-05 |