Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6699000 | Machine having a working arm | Norman Charles Hadley | 2004-03-02 |
| 5836733 | Material-handling vehicle | John Burke | 1998-11-17 |
| 5050691 | Detachable torque transmitting tool joint | — | 1991-09-24 |
| 4865135 | Top drive torque reactor | — | 1989-09-12 |
| 4830121 | Break-out joint with selective disabler | Igor Krasnov | 1989-05-16 |