Issued Patents All Time
Showing 26–50 of 50 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7983113 | Method and apparatus for downlink communication using dynamic threshold values for detecting transmitted signals | Thomas Kelch, Joachim Treviranus, Henning Doerge, Marc Kurella | 2011-07-19 |
| 7806203 | Active controlled bottomhole pressure system and method with continuous circulation system | Volker Krueger, Peter Aronstam, Harald Grimmer, Roger Fincher, Larry Watkins | 2010-10-05 |
| 7802949 | Tubular cutting device | Karsten Fuhst | 2010-09-28 |
| 7721822 | Control systems and methods for real-time downhole pressure management (ECD control) | Volker Krueger, Harald Grimmer, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2010-05-25 |
| 7708067 | Apparatus and method for estimating orientation of a liner during drilling of a wellbore | Joachim Treviranus | 2010-05-04 |
| 7628205 | Optimized machining process for cutting tubulars downhole | Karsten Fuhst | 2009-12-08 |
| 7575056 | Tubular cutting device | Karsten Fuhst, Matthias Moeller | 2009-08-18 |
| 7478982 | Tubular cutting device | Karsten Fuhst | 2009-01-20 |
| 7416023 | Formation pressure testing apparatus with flexible member and method of formation pressure testing | Volker Krueger, Wolfgang E. Herberg, Gunnar Bothmann, Matthias Meister | 2008-08-26 |
| 7353887 | Control systems and methods for active controlled bottomhole pressure systems | Volker Krueger, Harald Grimmer, Larry Watkins, Peter Aronstam, Peter Fontana +1 more | 2008-04-08 |
| 7266983 | Methods to detect formation pressure | Eick Niemeyer, Matthias Meister, Jaedong Lee | 2007-09-11 |
| 7207216 | Hydraulic and mechanical noise isolation for improved formation testing | Matthias Meister, Christian Liss | 2007-04-24 |
| 7174975 | Control systems and methods for active controlled bottomhole pressure systems | Volker Krueger, Harald Grimmer, Roger Fincher, Larry Watkins, Peter Aronstam +1 more | 2007-02-13 |
| 7114581 | Active controlled bottomhole pressure system & method | Peter Aronstam, Volker Krueger, Harald Grimmer, Roger Fincher, Larry Watkins +1 more | 2006-10-03 |
| 7096975 | Modular design for downhole ECD-management devices and related methods | Peter Aronstam, Volker Krueger, Harald Grimmer, Roger Fincher, Larry Watkins +1 more | 2006-08-29 |
| 7011155 | Formation testing apparatus and method for optimizing draw down | Matthias Meister, Jaedong Lee, Eick Niemeyer | 2006-03-14 |
| 6981561 | Downhole cutting mill | Volker Krueger, Harald Grimmer, Joerg Christanseen, Volker Peters | 2006-01-03 |
| 6957698 | Downhole activatable annular seal assembly | Volker Krueger, Harald Grimmer | 2005-10-25 |
| 6957709 | Apparatus and method for cleaning and sealing a well borehole portion for formation evaluation | Matthias Meister, Wolfgang E. Herberg | 2005-10-25 |
| 6923052 | Methods to detect formation pressure | Eick Niemeyer, Matthias Meister, Jaedong Lee | 2005-08-02 |
| 6871713 | Apparatus and methods for sampling and testing a formation fluid | Matthias Meister | 2005-03-29 |
| 6837314 | Sub apparatus with exchangeable modules and associated method | Volker Krueger, Wolfgang E. Herberg, Gunnar Bothmann, Matthias Meister | 2005-01-04 |
| 6763884 | Method for cleaning and sealing a well borehole portion for formation evaluation | Matthias Meister, Wolfgang E. Herberg | 2004-07-20 |
| 6672386 | Method for in-situ analysis of formation parameters | Eick Niemeyer, Matthias Meister | 2004-01-06 |
| 6568487 | Method for fast and extensive formation evaluation using minimum system volume | Matthias Meister | 2003-05-27 |