Issued Patents All Time
Showing 26–50 of 81 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9631477 | Downhole determination of drilling state | Richard John Harmer, Walter David Aldred, Adam Bowler | 2017-04-25 |
| 9574432 | Optimized drilling | Maurice Ringer, Michael Paul Barrett, Walter David Aldred, Ashley Bernard Johnson | 2017-02-21 |
| 9551798 | Seismic vibrator to produce a continuous signal | — | 2017-01-24 |
| 9494028 | Measuring speed of rotation of a downhole motor | Ashley Bernard Johnson, Michael Paul Barrett, Walter David Aldred, Maurice Ringer | 2016-11-15 |
| 9493986 | Gas injection while drilling | Ashley Bernard Johnson | 2016-11-15 |
| 9416594 | System and method for drilling a borehole | Iain Cooper, Simon Bittleston, Geoffrey C. Downton | 2016-08-16 |
| 9348041 | Phase modulation and noise minimization for simultaneous vibroseis acquisition | — | 2016-05-24 |
| 9303459 | Drilling apparatus | Ashley Bernard Johnson | 2016-04-05 |
| 8990021 | Drilling dynamics | — | 2015-03-24 |
| 8872670 | Compliance telemetry | — | 2014-10-28 |
| 8791832 | Apparatus, system, and method for communicating while logging with wired drill pipe | Andrew Hawthorn, Goke Akinniranye | 2014-07-29 |
| 8567527 | System and method for drilling a borehole | — | 2013-10-29 |
| 8462013 | Apparatus, system, and method for communicating while logging with wired drill pipe | Andrew Hawthorn, Goke Akinniranye | 2013-06-11 |
| 8397809 | Technique and apparatus to perform a leak off test in a well | — | 2013-03-19 |
| 8380438 | Wideband mud pump noise cancelation method for wellbore telemetry | Arnaud Jarrot | 2013-02-19 |
| 8307913 | Drilling system with drill string valves | Lee Dolman, Ashley Bernard Johnson, Brian Clark, John McCullagh | 2012-11-13 |
| 8245775 | Wellbore consolidating tool for rotary drilling application | Iain Cooper, Claude Vercaemer, William Lesso, Michael Charles Sheppard | 2012-08-21 |
| 8243550 | Downhole communication method and system | — | 2012-08-14 |
| 8235146 | Actuators, actuatable joints, and methods of directional drilling | Kjell Haugvaldstad, Ashley Bernard Johnson, Geoffrey C. Downton, Walter David Aldred, Frank Espinosa +2 more | 2012-08-07 |
| 8235145 | Gauge pads, cutters, rotary components, and methods for directional drilling | Kjell Haugvaldstad, Ashley Bernard Johnson, Geoffrey C. Downton, Walter David Aldred, Frank Espinosa +2 more | 2012-08-07 |
| 8196678 | Method of downlinking to a downhole tool | — | 2012-06-12 |
| 8136610 | Torsional resonance prevention | — | 2012-03-20 |
| 8109345 | System and method for drilling a borehole | — | 2012-02-07 |
| 7963325 | Method and system for fracturing subsurface formations during the drilling thereof | Ashley Bernard Johnson, J. Ernest Brown | 2011-06-21 |
| 7946359 | Methods and apparatus for well construction | Louise Bailey, Iain Cooper, Geoffrey Maitland, Dominique Guillot | 2011-05-24 |