Issued Patents 2011
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7963333 | Controlling the pressure within an annular volume of a wellbore | Manuel E. Gonzalez, Brian C. Llewellyn, James B. Bloys, Don M. Coates | 2011-06-21 |
| 7950460 | Controlling the pressure within an annular volume of a wellbore | Manuel E. Gonzalez, Brian C. Llewellyn, James B. Bloys, Don M. Coates | 2011-05-31 |
| 7870905 | Controlling the pressure within an annular volume of a wellbore | Manuel E. Gonzalez, Brian C. Llewellyn, James B. Bloys | 2011-01-18 |