Issued Patents 2018
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10107075 | Downhole isolation valve | Julmar Shaun S. Toralde, Joe Noske, Christopher L. McDowell | 2018-10-23 |
| 9951600 | Managed pressure cementing | Don M. Hannegan, Cesar Pena, David Pavel, Said Boutalbi, Todd Douglas Cooper +2 more | 2018-04-24 |