Issued Patents All Time
Showing 25 most recent of 31 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10378310 | Drilling flow control tool | — | 2019-08-13 |
| 9763593 | Volumetric physiological measuring system and method | Morten Eriksen | 2017-09-19 |
| 9605533 | Liner drilling bottom hole assembly locator system and method | Michael E. Moffitt | 2017-03-28 |
| 9567834 | Apparatus and method for cementing liner | Michael E. Moffitt | 2017-02-14 |
| 9091148 | Apparatus and method for cementing liner | Michael E. Moffitt | 2015-07-28 |
| 8851167 | Mechanical liner drilling cementing system | — | 2014-10-07 |
| 8783368 | Well tool with shearable collet | Barry J. Tate | 2014-07-22 |
| 8678108 | Torque transmitting elastomeric element in casing drilling drill lock assembly | — | 2014-03-25 |
| 8607859 | Method of drilling and running casing in large diameter wellbore | — | 2013-12-17 |
| 8500651 | Volumetric physiological measuring system and method | Morten Eriksen | 2013-08-06 |
| 8281878 | Method of drilling and running casing in large diameter wellbore | — | 2012-10-09 |
| 8146672 | Method and apparatus for retrieving and installing a drill lock assembly for casing drilling | — | 2012-04-03 |
| 8113301 | Jetted underreamer assembly | — | 2012-02-14 |
| 7926590 | Method of liner drilling and cementing utilizing a concentric inner string | Michael Brouse | 2011-04-19 |
| 7886847 | Monitoring flow rates while retrieving bottom hole assembly during casing while drilling operations | Michael E. Moffitt, Tommy M. Warren | 2011-02-15 |
| 7845431 | Retrieval tool with slips for retrieving bottom hole assembly during casing while drilling operations | Michael E. Moffitt, Tommy M. Warren | 2010-12-07 |
| 7798251 | Circulation system for retrieval of bottom hole assembly during casing while drilling operations | Michael E. Moffitt, Tommy M. Warren | 2010-09-21 |
| 7779920 | Controlling backflow pressure during retrieval of bottom hole assembly | Michael E. Moffitt, Tommy M. Warren | 2010-08-24 |
| 7708077 | Retrieval of bottom hole assembly during casing while drilling operations | Michael E. Moffitt, Tommy M. Warren | 2010-05-04 |
| 7604057 | Incremental U-tube process to retrieve of bottom hole assembly during casing while drilling operations | Michael E. Moffitt, Tommy M. Warren | 2009-10-20 |
| 7390307 | Volumetric physiological measuring system and method | Morten Eriksen | 2008-06-24 |
| 6945941 | Volumetric physiological measuring system and method | Morten Eriksen | 2005-09-20 |
| 6446717 | Core-containing sealing assembly | L. Cameron White, David M. Haugen | 2002-09-10 |
| 6374667 | Volumetric physiological measuring system and method | Morten Eriksen | 2002-04-23 |
| 6241018 | Hydraulic running tool | — | 2001-06-05 |