Issued Patents All Time
Showing 76–100 of 179 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8792307 | Acoustic transducer with a backing containing unidirectional fibers and methods of making and using same | — | 2014-07-29 |
| 8752305 | Apparatus and method for determining the direction east | — | 2014-06-17 |
| 8704159 | Method and apparatus for estimating a downhole fluid property using a charged particle densitometer | — | 2014-04-22 |
| 8692182 | Ruggedized high temperature compatible radiation detector | Anton Nikitin, Alexandr A. Vinokurov, Mikhail Korjik | 2014-04-08 |
| 8656770 | Electromagnetically heated thermal flowmeter for wellbore fluids | — | 2014-02-25 |
| 8536528 | System and method for downhole voltage generation | — | 2013-09-17 |
| 8464790 | Brine salinity from sound speed | — | 2013-06-18 |
| 8379207 | Method and apparatus for estimating a fluid property | D. Duncan Blue | 2013-02-19 |
| 8145429 | System and method for sampling and analyzing downhole formation fluids | Paul Bergren | 2012-03-27 |
| 8131494 | Rotatable orientation independent gravity sensor and methods for correcting systematic errors | Daniel T. Georgi, Carl M. Edwards, Sheng Fang, Robert A. Estes | 2012-03-06 |
| 8113041 | Gravitational method and apparatus for measuring true vertical depth in a borehole | Daniel T. Georgi, Robert A. Estes | 2012-02-14 |
| 8104338 | Method and apparatus for ion-selective discrimination of fluids downhole | — | 2012-01-31 |
| 8089277 | System and method implementing inherently conducting polymers for downhole applications | Stanislav W. Forgang | 2012-01-03 |
| 8051706 | Wide liquid temperature range fluids for pressure balancing in logging tools | — | 2011-11-08 |
| 8037747 | Downhole fluid characterization based on changes in acoustic properties | — | 2011-10-18 |
| 8039792 | Wide band gap semiconductor photodetector based gamma ray detectors for well logging applications | Anton Nikitin, Alexandr A. Vinokurov, Mikhail Korjik | 2011-10-18 |
| 8032311 | Estimating gas-oil ratio from other physical properties | — | 2011-10-04 |
| 8020621 | Downhole applications of composites having aligned nanotubes for heat transport | Roger Fincher | 2011-09-20 |
| 8023690 | Apparatus and method for imaging fluids downhole | Raman Viswanathan, Jeffery W. Fontenot | 2011-09-20 |
| 7969571 | Evanescent wave downhole fiber optic spectrometer | — | 2011-06-28 |
| 7950472 | Downhole local mud weight measurement near bit | Jinsong Zhao | 2011-05-31 |
| 7921691 | Acoustic fluid analyzer | Weimin Yao | 2011-04-12 |
| 7912647 | Method and apparatus for measuring true vertical depth in a borehole | — | 2011-03-22 |
| 7886821 | Apparatus and method for determining fluid properties | — | 2011-02-15 |
| 7857066 | Downhole tools utilizing electroactive polymers for actuating release mechanisms | Roderick A. Larson, Jeffrey Honekamp | 2010-12-28 |