Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6991045 | Forming openings in a hydrocarbon containing formation using magnetic tracking | Harold J. Vinegar, Christopher Harris, Christopher A. Pratt, Gordon Bruce Lepper, Randolph Wagner | 2006-01-31 |
| 5787997 | Method of qualifying a borehole survey | — | 1998-08-04 |
| 5541517 | Method for drilling a borehole from one cased borehole to another cased borehole | Elvira Hendrika Mulder | 1996-07-30 |