Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6814161 | Stakedown assembly for a horizontal directional drill | Robert G. Draney, Jeffrey S. Volden | 2004-11-09 |
| 6276464 | Stake coupler for a horizontal directional drill | Robert G. Draney, Jeffrey S. Volden | 2001-08-21 |
| 6257350 | Multiple position staking system for a horizontal directional drill | Robert G. Draney, Dmitry Spivak, Jeffrey S. Volden | 2001-07-10 |
| 4665830 | Guide construction and method of installation | J. Edward C. Anderson | 1987-05-19 |