| 11887746 |
High voltage supply for compact radiation generator |
Luke T. Perkins, Christian Stoller |
2024-01-30 |
$102,598,000 |
| 11189389 |
High voltage supply for compact radiation generator |
Luke T. Perkins, Christian Stoller |
2021-11-30 |
$34,990,000 |
| 10490312 |
High voltage supply for compact radiation generator |
Luke T. Perkins, Christian Stoller |
2019-11-26 |
$25,166,000 |
| 10436918 |
Integrated coupling of scintillation crystal with photomultiplier in a detector apparatus |
Ken Stephenson, Wolfgang Ziegler, John J. Simonetti, Christian Stoller, Irina Molodetsky |
2019-10-08 |
$25,167,000 |
| 10271417 |
Method and apparatus to identify functional issues of a neutron radiation generator |
Joel L. Groves |
2019-04-23 |
$50,352,000 |
| 10229765 |
Compact radiation generator |
Joel L. Groves, Luke T. Perkins, Fabien Guizelin |
2019-03-12 |
$24,873,000 |
| 10174608 |
Installation for intervention in a well comprising a neutron generator, and method associated therewith |
Vincent Chatelet, Axel Quignard, Jean-Pierre Poyet, Fabien Nibodeau, Luke T. Perkins |
2019-01-08 |
$42,422,000 |
| 9947426 |
High voltage supply for compact radiation generator |
Luke T. Perkins, Christian Stoller |
2018-04-17 |
$66,917,000 |
| 9880295 |
Integrated coupling of scintillation crystal with photomultiplier in a detector apparatus |
Ken Stephenson, Wolfgang Ziegler, Christian Stoller, Irina Molodetsky, John J. Simonetti |
2018-01-30 |
$64,615,000 |
| 9470817 |
Method and apparatus to determine pressure in a neutron radiation generator |
Joel L. Groves |
2016-10-18 |
$89,998,000 |
| 9394781 |
Logging-while-drilling tool incorporating electronic radiation generator and method for using same |
Matthieu Simon, Christian Stoller, Kenneth E. Stephenson, Andrew Bazarko |
2016-07-19 |
$39,317,000 |
| 9372277 |
Neutron porosity downhole tool with improved precision and reduced lithology effects |
James Thornton, Bradley A. Roscoe |
2016-06-21 |
$58,624,000 |
| 9234980 |
Mining systems and methods |
Gilles Mathieu, Kent Lang, Roland Banas, James A. Grau, Edward Clayton |
2016-01-12 |
$69,019,000 |
| 9184019 |
Ion source having negatively biased extractor |
Luke T. Perkins, Benjamin Levitt, Arthur D. Liberman |
2015-11-10 |
$53,187,000 |
| 9155185 |
Electrode configuration for downhole nuclear radiation generator |
Jani Reijonen, Luke T. Perkins, Frederic Gicquiel, Christian Stoller |
2015-10-06 |
$139,793,000 |
| 9129770 |
Ion source having negatively biased extractor |
Luke T. Perkins, Benjamin Levitt, Arthur D. Liberman |
2015-09-08 |
$80,055,000 |
| 9105436 |
Ion source having negatively biased extractor |
Luke T. Perkins, Benjamin Levitt, Arthur D. Liberman |
2015-08-11 |
$60,460,000 |
| 9053893 |
Radiation generator having bi-polar electrodes |
Jani Reijonen, Frederic Gicquel, Joel L. Groves, Kenneth E. Stephenson |
2015-06-09 |
$44,885,000 |
| 8990020 |
Method and apparatus for measuring the vertical separation of two stations in a borehole |
Harold Pfutzner |
2015-03-24 |
$40,089,000 |
| 8975574 |
Well-logging tool with azimuthal and spectral radiation detectors and related methods |
Cornelis Huiszoon, Libai Xu, Christian Stoller, Robert T. Little |
2015-03-10 |
$497,490,000 |
| 8969793 |
Downhole neutron activation measurement |
Christian Stoller, Brad Roscoe |
2015-03-03 |
$49,079,000 |
| 8907289 |
Subatomic particle detector capable of ignoring shock induced counts |
— |
2014-12-09 |
$27,624,000 |
| 8742328 |
Logging-while-drilling tool incorporating electronic radiation generator and method for using same |
Matthieu Simon, Christian Stoller, Kenneth E. Stephenson, Andrew Bazarko |
2014-06-03 |
$43,328,000 |
| 8686348 |
High voltage insulating sleeve for nuclear well logging |
Leo M. F. Chirovsky, Anthony Durkowski, Kevin Lee Hiles, Jani Reijonen, Matthieu Simon |
2014-04-01 |
$36,699,000 |
| 8664587 |
Non-rotating logging-while-drilling neutron imaging tool |
Michael Evans, Christian Stoller, Avto Tkabladze |
2014-03-04 |
$70,845,000 |
