Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8511375 | Wellbore cleaning devices | Gregory L. Hern, Paul L. Connell | 2013-08-20 |
| 7934559 | Single cycle dart operated circulation sub | Gregory L. Hern | 2011-05-03 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8511375 | Wellbore cleaning devices | Gregory L. Hern, Paul L. Connell | 2013-08-20 |
| 7934559 | Single cycle dart operated circulation sub | Gregory L. Hern | 2011-05-03 |