Issued Patents All Time
Showing 25 most recent of 27 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12217084 | Emotion processing systems and methods | Charles Wardell | 2025-02-04 |
| 12197181 | Temperature control system and methods for operating same | David A. Johnson, Valerie Jean Johnson, John Edward Dumar | 2025-01-14 |
| 11775338 | Emotion processing systems and methods | Charles Wardell | 2023-10-03 |
| 10859723 | Systems and methods for using Stoneley waves for bottom-hole proximity detection | Bertrand du Castel, Christoph Klieber, Martin G. Luling | 2020-12-08 |
| 10268507 | Emotion processing systems and methods | Charles Wardell | 2019-04-23 |
| 9727371 | Emotion processing systems and methods | Charles Wardell | 2017-08-08 |
| 9625599 | Downhole elastic anisotropy measurements | Romain Charles Andre Prioul, Ralph M. D'Angelo | 2017-04-18 |
| 9086508 | Use of an effective tool model in sonic logging data processing | Bikash K. Sinha, Toru Ikegami, Jahir Pabon | 2015-07-21 |
| 8902048 | Radio frequency transmitter adaptors, methods and articles of manufacture | Neal Cloud, Kevin Waite, Zhou Zhenmin | 2014-12-02 |
| 8773948 | Methods and apparatus to determine slowness of drilling fluid in an annulus | — | 2014-07-08 |
| 8730763 | Methods and apparatus to optimize parameters in a downhole environment | — | 2014-05-20 |
| 8553493 | Method for permeable zone detection | Peter Wu, Alain Dumont, Pierre Campanac | 2013-10-08 |
| 8547789 | Method for gas zone detection using sonic wave attributes | Peter Wu, Alain Dumont, Pierre Campanac | 2013-10-01 |
| 7894300 | Fluid characterization from acoustic logging data | Andrew Hawthorn, Lucian Johnston, Takeshi Endo, Henri-Pierre Valero | 2011-02-22 |
| 7854844 | Detection systems and methods | Martin Hofmann | 2010-12-21 |
| 7529152 | Use of an effective tool model in sonic logging data processing | Bikash K. Sinha, Toru Ikegami, Jahir Pabon | 2009-05-05 |
| 7486070 | Devices, systems and methods for assessing porous media properties | David P. Madio | 2009-02-03 |
| 7334661 | Acoustic logging tool sleeve | Jahir Pabon, Chung Chang, Vivian Pistre, Tarek M. Habashy, Smaine Zeroug +4 more | 2008-02-26 |
| 7262859 | Systems and methods for measurement optimization | Jonathan William Larson, Gregory YANTZ, George Seward, Jeffrey R. Krogmeier | 2007-08-28 |
| 7195709 | Detection systems and methods | Martin Hofmann | 2007-03-27 |
| 7095676 | Assessing a solids deposit in an oilfield pipe | Ralph M. D'Angelo, Kenneth W. Winkler, Gale Gustavson, Oliver C. Mullins | 2006-08-22 |
| 7037494 | Formulations and methods for insect control | Stephen Mattingly | 2006-05-02 |
| 5869755 | Porosity estimation method in carbonate rock | Raghu Ramamoorthy, William F. Murphy | 1999-02-09 |
| 5646379 | Attentuator for borehole acoustic waves | Chuar-Jian Hsu, Sergio Kostek, Abderrhamane Ounadjela | 1997-07-08 |
| 5485431 | Measurement of nonlinear formation parameters using sonic borehole tool | Sergio Kostek, Andrew Norris | 1996-01-16 |