Issued Patents All Time
Showing 1–25 of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11459828 | Drilling apparatus using a self-adjusting deflection device and deflection sensors for drilling directional wells | Volker Peters, Andreas Peter, Christian Fulda, Heiko Eggers | 2022-10-04 |
| 11428047 | Drilling assembly using a self-adjusting tilt device and sensors for drilling directional wellbores | Volker Peters, Andreas Peter, Christian Fulda, Heiko Eggers | 2022-08-30 |
| 11421480 | Drilling apparatus using a sealed self-adjusting deflection device for drilling directional wells | Volker Peters, Andreas Peter, Christian Fulda, Heiko Eggers | 2022-08-23 |
| 11319753 | Method of forming stators for downhole motors | Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Christian Fulda +2 more | 2022-05-03 |
| 11148327 | Method for forming a mud motor stator | Marcel Brand, Helmut G. Benning | 2021-10-19 |
| 10920493 | Method of forming stators for downhole motors | Witali Huber, Gunnar Michaelis, Carsten Hohl, Erik Bartscherer, Christian Fulda +2 more | 2021-02-16 |
| 10738600 | One run reservoir evaluation and stimulation while drilling | Joerg Lehr, Stefan Wessling | 2020-08-11 |
| 10731423 | Multi-start thread connection for downhole tools | Christian Fulda | 2020-08-04 |
| 10385615 | Vibrationless moineau system | Christian Herbig, Andreas Hohl, Hanno Reckmann, Carsten Hohl | 2019-08-20 |
| 9091264 | Apparatus and methods utilizing progressive cavity motors and pumps with rotors and/or stators with hybrid liners | Carsten Hohl, Volker Krueger | 2015-07-28 |
| 9080435 | Upgoing drainholes for reducing liquid-loading in gas wells | Baoyan Li, Volker Krueger | 2015-07-14 |
| 9057247 | Measurement of downhole component stress and surface conditions | Sunil Kumar, Hendrik John, Thomas Kruspe, Andreas Peter, Michael Koppe | 2015-06-16 |
| 8973676 | Active equivalent circulating density control with real-time data connection | — | 2015-03-10 |
| 8925652 | Lateral well drilling apparatus and method | Steffen Toscher, Ingo Roders, Volker Krueger | 2015-01-06 |
| 8888474 | Downhole motors and pumps with asymmetric lobes | Carsten Hohl | 2014-11-18 |
| 8800688 | Downhole motors with a lubricating unit for lubricating the stator and rotor | Hendrik John | 2014-08-12 |
| 8786866 | Apparatus and method for determining inner profiles of hollow devices | Frederik Goeing, Marc Aldag, Gunnar Michaelis | 2014-07-22 |
| 8011450 | Active bottomhole pressure control with liner drilling and completion systems | Sven Krueger, Gerald Heisig, Detlef Hahn, Volker Krueger, Peter Aronstam +2 more | 2011-09-06 |
| 7806203 | Active controlled bottomhole pressure system and method with continuous circulation system | Sven Krueger, Volker Krueger, Peter Aronstam, Roger Fincher, Larry Watkins | 2010-10-05 |
| 7721822 | Control systems and methods for real-time downhole pressure management (ECD control) | Sven Krueger, Volker Krueger, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2010-05-25 |
| 7353887 | Control systems and methods for active controlled bottomhole pressure systems | Sven Krueger, Volker Krueger, Larry Watkins, Peter Aronstam, Peter Fontana +1 more | 2008-04-08 |
| 7174975 | Control systems and methods for active controlled bottomhole pressure systems | Sven Krueger, Volker Krueger, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2007-02-13 |
| 7114581 | Active controlled bottomhole pressure system & method | Peter Aronstam, Volker Krueger, Sven Krueger, Roger Fincher, Larry Watkins +1 more | 2006-10-03 |
| 7096975 | Modular design for downhole ECD-management devices and related methods | Peter Aronstam, Volker Krueger, Sven Krueger, Roger Fincher, Larry Watkins +1 more | 2006-08-29 |
| 6981561 | Downhole cutting mill | Sven Krueger, Volker Krueger, Joerg Christanseen, Volker Peters | 2006-01-03 |