Issued Patents All Time
Showing 1–25 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11131149 | Transmission line for wired pipe | Stephan Mueller, Christian Fulda, Ingo Roders, Henning Rahn | 2021-09-28 |
| 10443315 | Transmission line for wired pipe | Stephan Mueller, Christian Fulda, Ingo Roders, Henning Rahn | 2019-10-15 |
| 10232294 | Separation element and pressure accumulator system | Klemens Dworatzek, Janine Schmelzle, Goekhan Evcuemen | 2019-03-19 |
| 9151140 | Downhole tools with electro-mechanical and electro-hydraulic drives | Olof Hummes, Michael Koppe, Sven Krueger, Matthias Meister | 2015-10-06 |
| 9091264 | Apparatus and methods utilizing progressive cavity motors and pumps with rotors and/or stators with hybrid liners | Carsten Hohl, Harald Grimmer | 2015-07-28 |
| 9080435 | Upgoing drainholes for reducing liquid-loading in gas wells | Baoyan Li, Harald Grimmer | 2015-07-14 |
| 9057235 | Monitoring and control systems for continuous circulating drilling operations | D. Duncan Blue, Charles Brecher, John D. Macpherson | 2015-06-16 |
| 9052043 | Wired pipe coupler connector | Stephan Mueller, Christian Fulda, Ingo Roders, Volker Peters | 2015-06-09 |
| 9022146 | Reverse circulation apparatus and methods of using same | Sven Krueger, Jens-Uwe Bruns, Karsten Fuhst, Joerg Breitenfeld | 2015-05-05 |
| 8987001 | Oxygen indicator for parenteral and enteral dosage forms | Rolf Beck | 2015-03-24 |
| 8986028 | Wired pipe coupler connector | Stephan Mueller, Christian Fulda, Ingo Roders, Volker Peters | 2015-03-24 |
| 8925652 | Lateral well drilling apparatus and method | Steffen Toscher, Ingo Roders, Harald Grimmer | 2015-01-06 |
| 8800684 | Method and apparatus for borehole positioning | Johannes Witte | 2014-08-12 |
| 8794062 | Early kick detection in an oil and gas well | Rocco DiFoggio, Douglas J. Patterson, Eric Molz | 2014-08-05 |
| 8564179 | Apparatus and method for downhole energy conversion | Brian Ochoa, Thomas Kruspe | 2013-10-22 |
| 8248266 | Bidirectional telemetry apparatus and methods for wellbore operations | John D. Macpherson, Frank W. Shepard, Ralf Zaeper | 2012-08-21 |
| 8134476 | Apparatus and methods for self-powered communication and sensor network | Roland E. Chemali, Peter Aronstam, Roger Fincher, Larry Watkins | 2012-03-13 |
| 8132630 | Reverse circulation pressure control method and system | Sven Krueger, Jens-Uwe Bruns, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2012-03-13 |
| 8011450 | Active bottomhole pressure control with liner drilling and completion systems | Sven Krueger, Gerald Heisig, Detlef Hahn, Peter Aronstam, Harald Grimmer +2 more | 2011-09-06 |
| 7954560 | Fiber optic sensors in MWD Applications | Holger Mathiszik, Sebastian Csutak | 2011-06-07 |
| 7806203 | Active controlled bottomhole pressure system and method with continuous circulation system | Sven Krueger, Peter Aronstam, Harald Grimmer, Roger Fincher, Larry Watkins | 2010-10-05 |
| 7721822 | Control systems and methods for real-time downhole pressure management (ECD control) | Sven Krueger, Harald Grimmer, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2010-05-25 |
| 7650241 | Use of the dynamic downhole measurements as lithology indicators | Pushkar N. Jogi, Joachim Oppelt, Gerald Heisig, John D. Macpherson | 2010-01-19 |
| 7605716 | Telemetry system with an insulating connector | Andreas Peter, Johan Frederik Witte | 2009-10-20 |
| 7576543 | Apparatus and method for resistivity measurements during rotational drilling | Rene Ritter, Matthias Gorek, Martin Evans | 2009-08-18 |