Issued Patents All Time
Showing 1–20 of 20 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11993351 | Single-column semi-submersible platform | — | 2024-05-28 |
| 11878777 | Geostationary floating platform | — | 2024-01-23 |
| 10400513 | Fluid pressure driven, high frequency percussion hammer for drilling in hard formations | — | 2019-09-03 |
| 10385617 | High frequency fluid driven drill hammer percussion drilling in hard formations | — | 2019-08-20 |
| 9708868 | Slip device for suspending a drill or casing string | — | 2017-07-18 |
| 9222313 | Arrangement in a hose connection between a wellhead and a surface installation | — | 2015-12-29 |
| 8678112 | Slip device for suspending a drill or casing string in a drill floor | — | 2014-03-25 |
| 8505980 | Arrangement in a hose connection between a wellhead and a surface installation | — | 2013-08-13 |
| 8505635 | Device for a top drive drilling machine for continuous circulation of drilling mud | — | 2013-08-13 |
| 8439128 | Device for cleaning and doping equipment for threads | — | 2013-05-14 |
| 8037786 | Hydraulic circuit device | — | 2011-10-18 |
| 7836795 | Power tong device | — | 2010-11-23 |
| 6575692 | Method of unloading of solid substance having high degree of water content | Tore Hansen-Tangen | 2003-06-10 |
| 6347424 | Movement absorbing transferring system | — | 2002-02-19 |
| 6202274 | Arrangement for fastening a piston-cylinder arrangement and method for replacing sealings therein | — | 2001-03-20 |
| 6148922 | Slip joint | — | 2000-11-21 |
| 6095501 | Stretch compensation in a hoisting system for a derrick | — | 2000-08-01 |
| 6094910 | Apparatus and method for raising and lowering a piston in a piston cylinder arrangement in a derrick | — | 2000-08-01 |
| 6032929 | Arrangement in connection with a yoke in a hoisting system for a derrick | — | 2000-03-07 |
| 4979356 | Torque wrench | — | 1990-12-25 |