Issued Patents 2021
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10954749 | Bidirectional downhole isolation valve | — | 2021-03-23 |
| 10947798 | Bidirectional downhole isolation valve | — | 2021-03-16 |
| 10895130 | Remotely operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell | 2021-01-19 |
| 10890048 | Signal operated isolation valve | Roddie R. Smith, Paul L. Smith, Thomas F. Bailey, Christopher L. McDowell, Frederick T. Tilton | 2021-01-12 |