Issued Patents 2002
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6470974 | Three-dimensional steering tool for controlled downhole extended-reach directional drilling | R. Ernst Krueger, Ronald E. Beaufort | 2002-10-29 |
| 6467557 | Long reach rotary drilling assembly | R. Ernst Krueger, Ronald E. Beaufort, Duane Bloom | 2002-10-22 |