Issued Patents 2017
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9708877 | Blowout preventer monitoring system and method of using same | Eric Trevor Ensley, Christopher Dale Johnson | 2017-07-18 |
| 9580987 | Spherical blowout preventer with energizeable packer seal and method of using same | Eric Trevor Ensley, Christopher Dale Johnson | 2017-02-28 |