Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9790789 | Apparatus and method for obtaining formation fluid samples | David A. Hejl | 2017-10-17 |
| 9714556 | Shear seal check valve for use in wellbore fluid | Harry W. Bullock | 2017-07-25 |