Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10551521 | Magnetic resonance pulse sequences and processing | Radu Coman, Holger Tietjen | 2020-02-04 |
| 10539705 | Formation evaluation utilizing dual wait time nuclear magnetic resonance | Radu Coman, Holger Tietjen, Holger Thern | 2020-01-21 |
| 10126457 | Motion detection and correction of magnetic resonance data | Radu Coman, Holger Tietjen, Holger Thern | 2018-11-13 |
| 10061053 | NMR T2 distribution from simultaneous T1 and T2 inversions for geologic applications | Holger Thern, Holger Tietjen, Mouin Hamdan, Radu Coman | 2018-08-28 |
| 9863236 | Method for locating casing downhole using offset XY magnetometers | Francis Chad Hanak | 2018-01-09 |
| 9671483 | T2 inversions with reduced motion artifacts | Holger Thern, Radu Coman | 2017-06-06 |
| 9223048 | System and method to detect a fluid flow without a tipping pulse | Thomas Kruspe | 2015-12-29 |
| 9194830 | Correction for gain variation due to fast changing NMR sensor gain | Thomas Kruspe | 2015-11-24 |
| 9121966 | Media displacement device and method of improving transfer of electromagnetic energy between a tool and an earth formation | Christoph Meyer, Thomas Kruspe, Holger Tietjen | 2015-09-01 |
| 8952690 | System and method to detect a fluid flow | Thomas Kruspe | 2015-02-10 |
| 8604783 | Method and apparatus for NMR measurements while drilling with multiple depths of investigation | Thomas Kruspe | 2013-12-10 |
| 8587303 | Method and apparatus for NMR measurements in underbalanced drilling | Thomas Kruspe | 2013-11-19 |
| 8373412 | NMR-LWD imaging tool | Thomas Kruspe | 2013-02-12 |
| 8330459 | Method and apparatus for NMR measurements in small boreholes | Thomas Kruspe | 2012-12-11 |
| 8330463 | Protection of a multidirectional antenna | — | 2012-12-11 |
| 8195397 | Apparatus and method for time measurement in downhole measurement processes | — | 2012-06-05 |
| 7937999 | Estimating formation temperature near a borehole and using same for estimating a property of the formation | Thomas Kruspe | 2011-05-10 |
| 7847544 | System and method for measuring formation temperature and/or pressure using nuclear quadrupole resonance | Carl M. Edwards, Hyung Tae Kwak | 2010-12-07 |
| 7825661 | Method and apparatus for NMR saturation | — | 2010-11-02 |
| 7816921 | Resistivity tools with load-bearing azimuthally sensitive antennas and methods of using same | Andreas Peter | 2010-10-19 |
| 7800372 | Resistivity tools with segmented azimuthally sensitive antennas and methods of making same | Andreas Peter | 2010-09-21 |
| 7425827 | Method and apparatus for formation evaluation and borehole size determination | Songhua Chen, Carl M. Edwards, Thomas Kruspe, Holger Thern, David R. Beard | 2008-09-16 |
| 7405563 | Compensation of magnetic influence in a MWD system | Thomas Kruspe, Volker Krueger, Roland E. Chemali | 2008-07-29 |
| 7368909 | Downhole high resolution NMR spectroscopy with polarization enhancement | Thomas Kruspe | 2008-05-06 |
| 7358725 | Correction of NMR artifacts due to axial motion and spin-lattice relaxation | — | 2008-04-15 |