Issued Patents All Time
Showing 26–35 of 35 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8185312 | Downhole surveying utilizing multiple measurements | Roger Ekseth | 2012-05-22 |
| 8095317 | Downhole surveying utilizing multiple measurements | Roger Ekseth | 2012-01-10 |
| 8065087 | Reducing error contributions to gyroscopic measurements from a wellbore survey system | Roger Ekseth, Gary Uttecht | 2011-11-22 |
| 8065085 | System and method for measuring depth and velocity of instrumentation within a wellbore using a bendable tool | Roger Ekseth, Stephen Victor Mullin | 2011-11-22 |
| 7975778 | Borehole drilling control system, method and apparatus | David P. McRobbie | 2011-07-12 |
| 7717194 | Borehole drilling control system, method and apparatus | David P. McRobbie | 2010-05-18 |
| 7510027 | Borehole drilling control system, method and apparatus | David P. McRobbie | 2009-03-31 |
| 7506696 | Borehole drilling control system, method and apparatus | David P. McRobbie | 2009-03-24 |
| 6714870 | Method of and apparatus for determining the path of a well bore under drilling conditions | Dieter Goetz, Gerard Hohner | 2004-03-30 |
| 6145378 | Aided inertial navigation system | David P. McRobbie | 2000-11-14 |