Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7487847 | Lateral downhole drilling tool | John Person | 2009-02-10 |
| RE39292 | Apparatus and method for downhole fluid phase separation | John Ravensbergen | 2006-09-19 |
| 6138757 | Apparatus and method for downhole fluid phase separation | John Ravensbergen | 2000-10-31 |
| 5429036 | Remote hydraulic pressure intensifier | — | 1995-07-04 |