Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10107073 | System, method and apparatus for controlling fluid flow through drill string | Michael Harvey | 2018-10-23 |
| 9976413 | Pressure locking device for downhole tools | Andrew Roberts, Carl Allison Perry | 2018-05-22 |