Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10190394 | Energy harvesting from a downhole jar | Lianhe Guo | 2019-01-29 |
| 9217305 | Downhole tool string braking | Randolph S. Coles, Ed F Kopecky, Jonathan Paul Montiverdi, Neil Alan Ostermann, Budi P. Sidik | 2015-12-22 |
| 9187970 | Wellbore isolation devices and methods of use to prevent pump offs | Randolph S. Coles | 2015-11-17 |