Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10000981 | Back pressure control system | Stuart Butler, Dean Rambo | 2018-06-19 |
| 9664003 | Non-stop driller manifold and methods | Mark Blankenship | 2017-05-30 |
| 9194196 | Dual purpose mud-gas separator and methods | — | 2015-11-24 |
| 8122975 | Annulus pressure control drilling systems and methods | Gary Belcher, Adrian Steiner, Kevin Schmigel, David J. Brunnert, Richard Todd +2 more | 2012-02-28 |
| 7836973 | Annulus pressure control drilling systems and methods | Gary Belcher, Adrian Steiner, Kevin Schmigel, David J. Brunnert, Richard Todd +2 more | 2010-11-23 |
| 7066247 | Methods and apparatus for drilling with a multiphase pump | Bryan V. Butler, Gregory H. Chitty, Jeffrey Charles Saponja, Peter Barnes Moyes | 2006-06-27 |
| 6966367 | Methods and apparatus for drilling with a multiphase pump | Bryan V. Butler, Gregory H. Chitty, Jeffrey Charles Saponja, Peter Barnes Moyes | 2005-11-22 |