Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date | Approx Value ⓘ |
|---|---|---|---|---|
| 9518433 | Tubewire injection buckling mitigation | Andre Naumann | 2016-12-13 | $28,841,000 |
| 7347259 | Downhole oilfield erosion protection by using diamond | John Ravensbergen | 2008-03-25 | $29,422,000 |
| 6527067 | Lateral entry guidance system (LEGS) | John Ravensbergen | 2003-03-04 | $53,047,000 |