Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9334700 | Reverse cementing valve | Andrew J. Hanson, Jozeph Robert Marcin, Randal Brent Biedemann, Clayton R. Andersen | 2016-05-10 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9334700 | Reverse cementing valve | Andrew J. Hanson, Jozeph Robert Marcin, Randal Brent Biedemann, Clayton R. Andersen | 2016-05-10 |