Issued Patents All Time
Showing 1–17 of 17 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9938786 | String indexing device to prevent inadvertent tool operation with a string mounted operating device | Michael S. Bailey | 2018-04-10 |
| 9828829 | Intermediate completion assembly for isolating lower completion | Raymond A. Frisby, Jeffrey S. Phillips, Roy N. Nelson | 2017-11-28 |
| 9428984 | Drive off method from subsea well with pipe retention capability | Herbert P. Dhuet, Christian F. Bayne | 2016-08-30 |
| 9267357 | Multi-component diffuser assembly | Hai Hoang Nguyen, Marcus A. Avant, Jeremy J. Guillory, Steve Rosenblatt | 2016-02-23 |
| 9181785 | Automatic bypass for ESP pump suction deployed in a PBR in tubing | Peter F. Lawson | 2015-11-10 |
| 9145980 | Redundant actuation system | — | 2015-09-29 |
| 9027651 | Barrier valve system and method of closing same by withdrawing upper completion | Raymond A. Frisby, Jeffrey S. Phillips, Roy N. Nelson | 2015-05-12 |
| 9016372 | Method for single trip fluid isolation | Raymond A. Frisby, Jeffrey S. Phillips, Roy N. Nelson | 2015-04-28 |
| 9016389 | Retrofit barrier valve system | Raymond A. Frisby, Jeffrey S. Phillips, Roy N. Nelson | 2015-04-28 |
| 8955600 | Multi-barrier system and method | Wilfred Schexnayder | 2015-02-17 |
| 8881834 | Adjustable pressure hydrostatic setting module | — | 2014-11-11 |
| 8794311 | Subterranean tool with shock absorbing shear release | — | 2014-08-05 |
| 8770278 | Subterranean tool with multiple release capabilities | — | 2014-07-08 |
| 8757193 | Control line reducing hydraulic control system and control valve therefor | — | 2014-06-24 |
| 8522879 | Method and apparatus for controlling fluid flow into a borehole | — | 2013-09-03 |
| 8186439 | Controller for a hydraulically operated downhole tool | — | 2012-05-29 |
| 7392849 | Balance line safety valve with tubing pressure assist | Roddie R. Smith, Richard Gledhill | 2008-07-01 |