| 11828164 |
Instrumented cutter |
Jonathan Robert Hird, Tomas Rosinski, Jarek Rosinski |
2023-11-28 |
| 11732571 |
Downhole tool with sensor set(s) sensitive to circumferential, axial, or radial forces |
Jonathan Robert Hird, Ashley Bernard Johnson, Walter David Aldred, Tomas Rosinski, Jarek Rosinski |
2023-08-22 |
| 11668184 |
Instrumented rotary tool with compliant connecting portions |
Jonathan Robert Hird, Ashley Bernard Johnson, Walter David Aldred, Tomas Rosinski, Jarek Rosinski |
2023-06-06 |
| 11434748 |
Instrumented rotary tool with sensor in cavity |
Jonathan Robert Hird, Ashley Bernard Johnson, Walter David Aldred, Tomas Rosinski, Jarek Rosinski |
2022-09-06 |
| 10550684 |
Observation of vibration of rotary apparatus |
Caroline Humphrey, Ashley Bernard Johnson, Paul Dickenson, Gokturk Tunc |
2020-02-04 |
| 9797235 |
Drilling optimization with a downhole motor |
Maurice Ringer, Benjamin Peter Jeffryes, Walter David Aldred, Ashley Bernard Johnson, Gokturk Tunc +1 more |
2017-10-24 |
| 9574432 |
Optimized drilling |
Maurice Ringer, Benjamin Peter Jeffryes, Walter David Aldred, Ashley Bernard Johnson |
2017-02-21 |
| 9494028 |
Measuring speed of rotation of a downhole motor |
Ashley Bernard Johnson, Benjamin Peter Jeffryes, Walter David Aldred, Maurice Ringer |
2016-11-15 |
| 8544560 |
Drive mechanism |
William K. Bertram, Walter David Aldred, Ashley Bernard Johnson, Frank Espinosa, Carlos Delgado |
2013-10-01 |
| 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 |
| 7622916 |
Detector |
Gerald Meeten |
2009-11-24 |
| 7458421 |
Methods and systems for robust and accurate determination of wireline depth in a borehole |
Harry Barrow, Ashley Bernard Johnson, Charles Jenkins, John Corben, Gary L. Rytlewski |
2008-12-02 |
| 7455108 |
Radio frequency tags for turbulent flows |
Charles Jenkins, Harry Barrow, Paul Dickenson, Ashley Bernard Johnson |
2008-11-25 |
| 6993432 |
System and method for wellbore communication |
Charles Jenkins, Ashley Bernard Johnson, Harry Barrow |
2006-01-31 |
| 6845819 |
Down hole tool and method |
Stuart I. Jardine, Michael Charles Sheppard |
2005-01-25 |
| 6446718 |
Down hole tool and method |
Stuart I. Jardine, Michael Charles Sheppard |
2002-09-10 |
| 6405798 |
Downhole tool and method |
Stuart I. Jardine, Michael Charles Sheppard |
2002-06-18 |
| 6051800 |
Snap action switch |
— |
2000-04-18 |
| 5188228 |
Compact disk holder |
— |
1993-02-23 |
