Issued Patents All Time
Showing 25 most recent of 28 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10301938 | Microfluidic oscillating tube densitometer for downhole applications | Christopher Harrison, Chloe Coleou, Bill Grant | 2019-05-28 |
| 9641072 | Systems, methods, and apparatus to drive reactive loads | Abderrhamane Ounadjela, Olivier Moyal, Henri-Pierre Valero, Sandip Bose | 2017-05-02 |
| 9568409 | Vibrating wire viscometers | Christopher Harrison, Matthew T. Sullivan | 2017-02-14 |
| 9341059 | Microfluidic oscillating tube densitometer for downhole applications | Christopher Harrison, Chloe Coleou, Bill Grant | 2016-05-17 |
| 9143026 | Method and apparatus for regulating high voltage | Kevin Lee Hiles, Robert A. Adolph, Vincent Ernst | 2015-09-22 |
| 9097106 | Apparatus, method and system for measuring formation pressure and mobility | Elizabeth B. Dussan V, Abderrhamane Ounadjela, Richard D. Joyce, Douglas W. Grant, Edward Harrigan | 2015-08-04 |
| 8630148 | Systems, methods, and apparatus to drive reactive loads | Abderrhamane Ounadjela, Olivier Moyal, Henri-Pierre Valero, Sandip Bose | 2014-01-14 |
| 8616282 | System and method for determining downhole fluid parameters | Tullio Moscato, Robert Van Kuijk, Xu Wu | 2013-12-31 |
| 7908930 | Systems and methods for measuring multiphase flow in a hydrocarbon transporting pipeline | Cheng-Gang Xie, Yan P. Kuhn De Chizelle | 2011-03-22 |
| 7784330 | Viscosity measurement | Dan Angelescu, Hua Chen, Christopher Harrison, Matthew T. Sullivan | 2010-08-31 |
| 7602668 | Downhole sensor networks using wireless communication | Kenneth K. Liang, Philippe Salamitou | 2009-10-13 |
| 7574898 | Vibrating wire viscosity sensor | Christopher Harrison, Isabelle Etchart, Kai Hsu, Anthony Robert Holmes Goodwin, Sophie Nazik Godefroy +2 more | 2009-08-18 |
| 7424366 | Time-of-flight stochastic correlation measurements | Dan Angelescu, Thibaud Desbarbieux, Edward Harrigan, Jerome Durivault | 2008-09-09 |
| 7279678 | Method and apparatus for composition analysis in a logging environment | A. Ballard Andrews, Robert J. Schroeder, Bhavani Raghuraman, Oliver C. Mullins | 2007-10-09 |
| 7168487 | Methods, apparatus, and systems for obtaining formation information utilizing sensors attached to a casing in a wellbore | Philippe Salamitou, Robert Bailey | 2007-01-30 |
| 7140434 | Sensor system | Christian Chouzenoux, Philippe Salamitou | 2006-11-28 |
| 7040415 | Downhole telemetry system and method | Bruce W. Boyle, Nicolas Pacault, Jean-Michel Hache, Remi Hutin, Raghu Madhavan | 2006-05-09 |
| 6978833 | Methods, apparatus, and systems for obtaining formation information utilizing sensors attached to a casing in a wellbore | Philippe Salamitou, Robert Bailey | 2005-12-27 |
| 6866306 | Low-loss inductive couplers for use in wired pipe strings | Bruce W. Boyle, Raghu Madhavan | 2005-03-15 |
| 6641434 | Wired pipe joint with current-loop inductive couplers | Bruce W. Boyle, Raghu Madhavan | 2003-11-04 |
| 5463320 | Apparatus and method for determining the resitivity of underground formations surrounding a borehole | Stephen D. Bonner, Richard A. Rosthal, Abdullah A. Bagersh, Martin G. Luling | 1995-10-31 |
| 5359324 | Well logging apparatus for investigating earth formations | Brian Clark, Stephen D. Bonner, Martin G. Luling | 1994-10-25 |
| 5339036 | Logging while drilling apparatus with blade mounted electrode for determining resistivity of surrounding formation | Brian Clark, Stephen D. Bonner, Martin G. Luling | 1994-08-16 |
| 5235285 | Well logging apparatus having toroidal induction antenna for measuring, while drilling, resistivity of earth formations | Brian Clark, Stephen D. Bonner, Martin G. Luling | 1993-08-10 |
| 5200705 | Dipmeter apparatus and method using transducer array having longitudinally spaced transducers | Brian Clark, Stephen D. Bonner, Martin G. Luling, Richard A. Rosthal | 1993-04-06 |