Issued Patents All Time
Showing 1–25 of 26 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11293242 | Systems and methods for managing fluid pressure in a borehole during drilling operations | Geir Skaugen, Karl Erik Thoresen | 2022-04-05 |
| 11286735 | System and method for calibration of hydraulic models by surface string weight | Karl Erik Thoresen | 2022-03-29 |
| 10724357 | Method and device for estimating downhole string variables | — | 2020-07-28 |
| 10533407 | Methods and apparatus for reducing stick-slip | Pal Jacob Nessjoen | 2020-01-14 |
| 10415364 | Method and apparatus for reducing stick-slip | — | 2019-09-17 |
| 10358904 | Methods and systems for control of wellbore trajectories | — | 2019-07-23 |
| 10309211 | Method and device for estimating downhole string variables | — | 2019-06-04 |
| 10150653 | Method for reducing dynamic loads of cranes | — | 2018-12-11 |
| 9915147 | Method and apparatus for real-time fluid compressibility measurements | Arne Austefjord | 2018-03-13 |
| 9885231 | Methods and apparatus for reducing stick-slip | Pal Jacob Nessjoen | 2018-02-06 |
| 9624762 | System and method for reducing drillstring oscillations | — | 2017-04-18 |
| 9581008 | Method and apparatus for reducing stick-slip | — | 2017-02-28 |
| 9476417 | Method and system for detection and localization of a fluid related to a piston machine | Pål Jacob Nessjøen | 2016-10-25 |
| 9163736 | Method and device for preventing a mud relief valve from incorrect opening | — | 2015-10-20 |
| 8950512 | Methods and apparatus for reducing stick-slip | Pal Jacob Nessjoen | 2015-02-10 |
| 8689906 | Methods and apparatus for reducing stick-slip | Pal Jacob Nessjoen | 2014-04-08 |
| 8601874 | Method for detection of a malfunction related to a fluid affected component in a piston machine | — | 2013-12-10 |
| 8541968 | Method for reducing cogging torque effects of an electrical permanent magnet machine | — | 2013-09-24 |
| 8416093 | Method for detection of a fluid leak related to a piston machine | — | 2013-04-09 |
| 8412472 | Method for detection of a fluid leak related to a piston machine | — | 2013-04-02 |
| 7830749 | Method of filtering pump noise | — | 2010-11-09 |
| 7296591 | Valve arrangement for reciprocating machinery such as a pump and an compressor | Magne Moe | 2007-11-20 |
| 7231981 | Inline compensator for a floating drill rig | Magne Moe | 2007-06-19 |
| 7130751 | Method and device for detecting leaks in reciprocating machinery | — | 2006-10-31 |
| 7004121 | Arrangement at a piston engine and method of controlling the pistons | Magne Moe | 2006-02-28 |