Issued Patents All Time
Showing 1–12 of 12 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11512578 | Downhole active torque control method | Norman Bruce Moore, Rudolph Ernst Krueger, V, Rudolph Ernst Krueger, IV | 2022-11-29 |
| 10024102 | Oscillating mud motor | Sarah Mitchell | 2018-07-17 |
| 8833487 | Mechanical specific energy drilling system | Rudolf Ernst Krueger, IV, Norman Bruce Moore | 2014-09-16 |
| 8485278 | Methods and apparatuses for inhibiting rotational misalignment of assemblies in expandable well tools | — | 2013-07-16 |
| 8439129 | Anti-stall tool for downhole drilling assemblies | Rudolph Ernst Krueger, IV | 2013-05-14 |
| 8245796 | Tractor with improved valve system | Rudolph Ernst Krueger, V, Duane Bloom, N. Bruce Moore, Robert Levay | 2012-08-21 |
| 8146680 | Anti-stall tool for downhole drilling assemblies | Rudolph Ernst Krueger, IV | 2012-04-03 |
| 7954563 | Roller link toggle gripper and downhole tractor | N. Bruce Moore, Duane Bloom | 2011-06-07 |
| 7854275 | Spring-operated anti-stall tool | Rudolph Ernst Krueger, IV | 2010-12-21 |
| 7607497 | Roller link toggle gripper and downhole tractor | N. Bruce Moore, Duane Bloom | 2009-10-27 |
| 7493967 | Tractor with improved valve system | Rudolph Ernst Krueger, V, Duane Bloom, Norman Bruce Moore | 2009-02-24 |
| 7392859 | Roller link toggle gripper and downhole tractor | N. Bruce Moore, Duane Bloom | 2008-07-01 |