Issued Patents All Time
Showing 51–75 of 78 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10145978 | System and method of determining a value indicative of hydrogen index | Larry A. Jacobson | 2018-12-04 |
| 10126433 | Energy detection apparatus, methods, and systems | Yike Hu | 2018-11-13 |
| 10067261 | Downhole photon radiation detection using scintillating fibers | Yike Hu | 2018-09-04 |
| 10061054 | Downhole annulus evaluation apparatus, systems, and methods | Larry A. Jacobson | 2018-08-28 |
| 10042082 | Gamma ray measurement apparatus, systems, and methods | Da Luo | 2018-08-07 |
| 10012762 | Standoff determination | Zhijuan Zhang, Dongwon Lee | 2018-07-03 |
| 9964665 | Gamma-ray spectrometer calibration systems and methods | James E. Galford | 2018-05-08 |
| 9951614 | Behind pipe evaluation using a nuclear density tool | Yike Hu | 2018-04-24 |
| 9910185 | Pulsed chemical neutron source | Da Luo | 2018-03-06 |
| 9840912 | Determining casing fluid capture cross section using gamma count rate ratio | Larry A. Jacobson | 2017-12-12 |
| 9835731 | Detector packages | Dongwon Lee | 2017-12-05 |
| 9835757 | Pulsed-neutron tool methods and systems for monitoring casing corrosion | Dennis A. Durbin, Kwok-Shan Kwong | 2017-12-05 |
| 9835760 | Tritium-tritium neutron generator and logging method | Juan Navarro-Sorroche | 2017-12-05 |
| 9766367 | Triple phase evaluation of formation fluids | Kwokshan Kwong | 2017-09-19 |
| 9759834 | Method and apparatus for downhole photon imaging | Dongwon Lee | 2017-09-12 |
| 9756714 | Nano-emitter ion source neutron generator | Juan Navarro-Sorroche | 2017-09-05 |
| 9726623 | Gamma analysis of cement | Da Luo | 2017-08-08 |
| 9690006 | Downhole logging system with azimuthal and radial sensitivity | Dongwon Lee | 2017-06-27 |
| 9575206 | Downhole evaluation with neutron activation measurement | Daniel F. Dorffer | 2017-02-21 |
| 9557441 | Gain stabilization in a gamma ray detection apparatus | Da Luo | 2017-01-31 |
| 9389335 | Pulsed neutron tool for downhole oil typing | Larry A. Jacobson | 2016-07-12 |
| 9383472 | Position-sensitive gamma detectors | Da Luo | 2016-07-05 |
| 8996315 | Method and system of determining a value indicative of gas saturation of a formation | Larry A. Jacobson, Daniel F. Dorffer | 2015-03-31 |
| 8898045 | System and method of predicting gas saturation of a formation using neural networks | Dingding Chen, Larry A. Jacobson | 2014-11-25 |
| 8881808 | Method of determining a value indicative of fracture quality | Daniel F. Dorffer | 2014-11-11 |