Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8122975 | Annulus pressure control drilling systems and methods | Adrian Steiner, Kevin Schmigel, David J. Brunnert, Darcy Nott, Richard Todd +2 more | 2012-02-28 |
| 7836973 | Annulus pressure control drilling systems and methods | Adrian Steiner, Kevin Schmigel, David J. Brunnert, Darcy Nott, Richard Todd +2 more | 2010-11-23 |