Issued Patents 2016
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9249646 | Managed pressure cementing | Don M. Hannegan, Cesar Pena, David Pavel, Michael Brian Grayson, Todd Douglas Cooper +2 more | 2016-02-02 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9249646 | Managed pressure cementing | Don M. Hannegan, Cesar Pena, David Pavel, Michael Brian Grayson, Todd Douglas Cooper +2 more | 2016-02-02 |