Issued Patents 2003
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6668946 | Backreamer | James Richard Rankin, Richard K. Smith, Jr., Peter C. Rozendaal, Randy R. Runquist | 2003-12-30 |
| 6585062 | Steerable directional drilling reamer | Peter C. Rozendaal | 2003-07-01 |
| 6557651 | Automated lubricant dispensing system and method for a horizontal directional drilling machine | Duane E. Norby, Brian John Bischel, Steven C. Erickson, Gregg Austin | 2003-05-06 |