Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10538970 | Method for drilling out a plug using a hybrid rotary cone drill bit | Matthew Charles Stroever, David Michel Harrington, Karl W. Rose | 2020-01-21 |
| 9376866 | Hybrid rotary cone drill bit | Matt Stroever, David Michel Harrington, Karl W. Rose | 2016-06-28 |