G01V 5/04
Prospecting or detecting by the use of ionising radiation: specially adapted for
Official title: specially adapted for well-logging
G01V5/04 (Prospecting or detecting by the use of ionising radiation: specially adapted for) appears on 1,460 US grants and 1,126 published applications in this corpus.
Search patents in G01V- Granted patents
- 1,460
- Published applications
- 1,126
- Assignees
- 269
- Inventors
- 1,633
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 27 | 0 |
| 1977 | 32 | 0 |
| 1978 | 23 | 0 |
| 1979 | 18 | 0 |
| 1980 | 17 | 0 |
| 1981 | 21 | 0 |
| 1982 | 21 | 0 |
| 1983 | 21 | 0 |
| 1984 | 26 | 0 |
| 1985 | 28 | 0 |
| 1986 | 32 | 0 |
| 1987 | 25 | 0 |
| 1988 | 12 | 0 |
| 1989 | 20 | 0 |
| 1990 | 18 | 0 |
| 1991 | 22 | 0 |
| 1992 | 15 | 0 |
| 1993 | 18 | 0 |
| 1994 | 20 | 0 |
| 1995 | 16 | 0 |
| 1996 | 25 | 0 |
| 1997 | 16 | 0 |
| 1998 | 14 | 0 |
| 1999 | 11 | 0 |
| 2000 | 8 | 0 |
| 2001 | 7 | 0 |
| 2002 | 3 | 18 |
| 2003 | 11 | 11 |
| 2004 | 13 | 19 |
| 2005 | 9 | 18 |
| 2006 | 17 | 20 |
| 2007 | 18 | 23 |
| 2008 | 20 | 22 |
| 2009 | 24 | 36 |
| 2010 | 20 | 39 |
| 2011 | 19 | 47 |
| 2012 | 21 | 40 |
| 2013 | 30 | 62 |
| 2014 | 57 | 55 |
| 2015 | 51 | 78 |
| 2016 | 64 | 89 |
| 2017 | 74 | 85 |
| 2018 | 86 | 95 |
| 2019 | 94 | 64 |
| 2020 | 57 | 49 |
| 2021 | 58 | 61 |
| 2022 | 33 | 51 |
| 2023 | 53 | 44 |
| 2024 | 48 | 34 |
| 2025 | 38 | 41 |
| 2026 | 29 | 25 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- AI-assisted stratigraphic modeling and geosteering utilizing gamma ray measurements29 Sep 2026US 12,747,634 B2Schlumberger Technology Corporation
- Shielding device of source mounting and demounting for nuclear logging instrument15 Sep 2026US 12,736,707 B2Institute of Geology and Geophysics, Cas
- 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
- On surface gamma ray sensor for calibrating cuttings depth in underbalanced coiled tubing drilling rigs25 Aug 2026US 12,716,353 B2Saudi Arabian Oil Company
- Pipeline inspection apparatus comprising multiple barrel sections, articulating components, and radially extending structures18 Aug 2026US 12,710,561 B2Under Cover Technologies Corp.
- Neutron backscatter tool background standard for geochemical logging in well systems24 Sep 2026US 2026/0287780 A1Halliburton Energy Services.Inc.
- Real-time machine learning optimization and autopilot control for pulsed neutron logging operations17 Sep 2026US 2026/0276857 A1Halliburton Energy Services.Inc.
- Layered target for neutron generator6 Aug 2026US 2026/0231315 A1Halliburton Energy Services.Inc.
- Variable energy neutron well logging30 Jul 2026US 2026/0219416 A1Halliburton Energy Services.Inc.
- Orienting an underground detector for muon tomography23 Jul 2026US 2026/0211148 A1
Most cited
By later US patents
- Combination of epithermal and inelastic neutron scattering methods to locate coal and oil shale zones275US 3,947,683 ATexaco Inc. · 1976
- Method for monitoring the hydraulic fracturing of a subsurface formation106US 4,926,940 AMobil Oil Corporation · 1990
- Encapsulated radioactive tracer97US 5,929,437 AProtechnics International, Inc. · 1999
- Modular connector for measurement-while-drilling tool85US 5,251,708 ABaker Hughes Incorporated · 1993
- Well logging tool with an accelerator neutron source79US 4,760,252 ASchlumberger Technology Corporation · 1988