G01V 5/105
The neutron source being of the pulsed type
Official title: {the neutron source being of the pulsed type}
G01V5/105 (The neutron source being of the pulsed type) appears on 53 US grants and 44 published applications in this corpus.
Search patents in G01V- Granted patents
- 53
- Published applications
- 44
- Assignees
- 20
- Inventors
- 73
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 0 | 1 |
| 2013 | 1 | 2 |
| 2014 | 1 | 2 |
| 2015 | 0 | 3 |
| 2016 | 2 | 1 |
| 2017 | 4 | 5 |
| 2018 | 5 | 3 |
| 2019 | 3 | 0 |
| 2020 | 0 | 1 |
| 2021 | 2 | 1 |
| 2022 | 1 | 8 |
| 2023 | 5 | 3 |
| 2024 | 3 | 1 |
| 2025 | 4 | 6 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for evaluating a uranium content and a hydrogen porosity of a particular region in a geological formation when drilling and associated method1 Sep 2026US 12,724,168 B2Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Integrated pulsed neutron logging tool for spectroscopy and porosity measurements16 Jun 2026US 12,656,518 B2Halliburton Energy Services.Inc.
- Universal neutron pulsing scheme for logging operations16 Jun 2026US 12,656,519 B2Halliburton Energy Services.Inc.
- Prismatic grid inversion for oil saturation and 3-phase holdup18 Nov 2025US 12,474,501 B2Halliburton Energy Services.Inc.
- Compensated neutron gamma density23 Sep 2025US 12,422,586 B2Schlumberger Technology Corporation
- Real-time machine learning optimization and autopilot control for pulsed neutron logging operations17 Sep 2026US 2026/0276857 A1Halliburton Energy Services.Inc.
- Prismatic grid inversion for oil saturation and 3-phase holdup12 Feb 2026US 2026/0043936 A1Halliburton Energy Services.Inc.
- Integrated Pulsed Neutron Logging Tool for Spectroscopy and Porosity Measurements18 Dec 2025US 2025/0383470 A1Halliburton Energy Services.Inc.
- Device for evaluating a uranium content and a hydrogen porosity of a particular region in a geological formation when drilling and associated method23 Oct 2025US 2025/0327943 A1Commissariat à I' énergie atomique et aux énergies alternatives
- Early Leakage Detection For A Neutron Generator25 Sep 2025US 2025/0297912 A1Halliburton Energy Services.Inc.
Most cited
By later US patents
- Methods and apparatus for constituent analysis of earth formations50US 4,317,993 ASchlumberger Technology Corporation · 1982
- Thermal decay time logging method and apparatus46US 4,721,853 ASchlumberger Technology Corporation · 1988
- Earth formation pulsed neutron porosity logging system utilizing epithermal neutron and inelastic scattering gamma ray detectors34US 4,122,339 ATexaco Inc. · 1978
- Formation sigma measurement from thermal neutron detection30US 5,235,185 ASchlumberger Technology Corporation · 1993
- Pulsed neutron porosity logging system21US 4,122,340 ATexaco Inc. · 1978