Issued Patents All Time
Showing 26–50 of 102 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9963936 | Downhole closed loop drilling system with depth measurement | Robert A. Estes, Rocco DiFoggio, Francis Chad Hanak | 2018-05-08 |
| 9903200 | Viscosity measurement in a fluid analyzer sampling tool | Stefan Sroka, Peter Schaefer | 2018-02-27 |
| 9879529 | Apparatus for generating pulses in fluid during drilling of wellbores | Eckard Scholz | 2018-01-30 |
| 9816364 | Well stimulation methods and proppant | Rocco DiFoggio | 2017-11-14 |
| 9733182 | Apparatus and method for determining a fluid property downhole using a bulk reading refractometer | Rocco DiFoggio, Sebastian Jung | 2017-08-15 |
| 9664011 | High-speed camera to monitor surface drilling dynamics and provide optical data link for receiving downhole data | Rochus Rafael Nowosielski | 2017-05-30 |
| 9617845 | Resonator assembly limiting magnetic particle accumulation from well fluids | Brian Ochoa | 2017-04-11 |
| 9598957 | Switchable magnetic particle filter | — | 2017-03-21 |
| 9593562 | Downhole fuel cell with steam adsorption and pressure compensation | Joachim Oppelt | 2017-03-14 |
| 9448312 | Downhole fiber optic sensors with downhole optical interrogator | Sebastian Jung, Sebastian Csutak | 2016-09-20 |
| 9404362 | Material characteristic estimation using internal reflectance spectroscopy | Sebastian Jung, Felix Wellmann | 2016-08-02 |
| 9359867 | Desorption of a desiccant by radio waves or microwaves for a downhole sorption cooler | Erik Pennewitz, Sebastian Jung | 2016-06-07 |
| 9353618 | Apparatus and methods for cooling downhole devices | Sebastian Jung | 2016-05-31 |
| 9243464 | Flow control device and methods for using same | Andreas Peter, Carsten Freyer, Hans Jurgen Faber, Marcus Oesterberg | 2016-01-26 |
| 9223048 | System and method to detect a fluid flow without a tipping pulse | Martin Blanz | 2015-12-29 |
| 9194830 | Correction for gain variation due to fast changing NMR sensor gain | Martin Blanz | 2015-11-24 |
| 9121966 | Media displacement device and method of improving transfer of electromagnetic energy between a tool and an earth formation | Martin Blanz, Christoph Meyer, Holger Tietjen | 2015-09-01 |
| 9062532 | Electromagnetic viscosity sensor | Stefan Sroka | 2015-06-23 |
| 9057247 | Measurement of downhole component stress and surface conditions | Sunil Kumar, Hendrik John, Harald Grimmer, Andreas Peter, Michael Koppe | 2015-06-16 |
| 9024633 | NMR data accuracy and resolution by formation modeling | Holger Thern, Gerhard Kurz | 2015-05-05 |
| 8952690 | System and method to detect a fluid flow | Martin Blanz | 2015-02-10 |
| 8836328 | Acoustic excitation with NMR pulse | — | 2014-09-16 |
| 8803521 | Antenna apparatus and method for insulating | — | 2014-08-12 |
| 8604783 | Method and apparatus for NMR measurements while drilling with multiple depths of investigation | Martin Blanz | 2013-12-10 |
| 8587303 | Method and apparatus for NMR measurements in underbalanced drilling | Martin Blanz | 2013-11-19 |