Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11434694 | Automated spiraling detection | Christian Herbig, Hanno Reckmann, Wojciech Emmerich, Oliver Hoehn, Christian Linke +3 more | 2022-09-06 |
| 10036203 | Automated spiraling detection | Christian Herbig, Hanno Reckmann, Wojciech Emmerich, Oliver Hoehn, Christian Linke +3 more | 2018-07-31 |
| 9022146 | Reverse circulation apparatus and methods of using same | Sven Krueger, Volker Krueger, Karsten Fuhst, Joerg Breitenfeld | 2015-05-05 |
| 8942330 | Interference reduction method for downhole telemetry systems | Sanam Moghaddamnia, Feng Zheng, Imed Ben Brahim, Wojciech Emmerich, Christian Hansen | 2015-01-27 |
| 8151904 | Method for improved well control with a downhole device | Sven Krueger | 2012-04-10 |
| 8132630 | Reverse circulation pressure control method and system | Sven Krueger, Volker Krueger, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2012-03-13 |