G01V 5/107
And detecting reflected or back-scattered neutrons
Official title: {and detecting reflected or back-scattered neutrons}
G01V5/107 (And detecting reflected or back-scattered neutrons) appears on 201 US grants and 118 published applications in this corpus.
Search patents in G01V- Granted patents
- 201
- Published applications
- 118
- Assignees
- 49
- Inventors
- 265
- Latest grant
- 6 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 7 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 9 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 8 | 0 |
| 1987 | 4 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 9 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 7 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 0 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 2 |
| 2006 | 3 | 2 |
| 2007 | 2 | 4 |
| 2008 | 2 | 2 |
| 2009 | 2 | 6 |
| 2010 | 4 | 4 |
| 2011 | 3 | 9 |
| 2012 | 6 | 6 |
| 2013 | 2 | 6 |
| 2014 | 5 | 9 |
| 2015 | 3 | 8 |
| 2016 | 13 | 4 |
| 2017 | 5 | 3 |
| 2018 | 7 | 10 |
| 2019 | 12 | 13 |
| 2020 | 5 | 7 |
| 2021 | 6 | 7 |
| 2022 | 2 | 3 |
| 2023 | 5 | 2 |
| 2024 | 0 | 2 |
| 2025 | 2 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for combining the results of ultrasound and x-ray and neutron cement evaluation logs through modality merging6 Jan 2026US 12,517,276 B2Visuray Intech Ltd (BVI)
- Time-gated energy spectra for removal of borehole capture background30 Dec 2025US 12,510,686 B2Halliburton Energy Services.Inc.
- Near-field sensitivity of formation and cement porosity measurements with radial resolution in a borehole29 Jul 2025US 12,372,682 B2Visuray Intech Ltd (BVI)
- Non-radioactive tracers to evaluate fracturing procedures10 Oct 2023US 11,781,412 B2Carbo Ceramics Inc.
- Data fusion enhanced multi-modality wellbore integrity inspection system10 Oct 2023US 11,782,181 B2GE Energy Oilfield Technology, Inc.
- Time-gated energy spectra for removal of borehole capture background19 Mar 2026US 2026/0079279 A1Halliburton Energy Services.Inc.
- Replaceable Thermal Neutron Absorbing Sleeve For Neutron Detector30 Oct 2025US 2025/0334042 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
- Time-Gated Energy Spectra For Removal Of Borehole Capture Background17 Jul 2025US 2025/0231317 A1Halliburton Energy Services.Inc.
- Non-radioactive tracers to evaluate fracturing procedures4 Apr 2024US 2024/0110471 A1Carbo Ceramics Inc.
Most cited
By later US patents
- 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
- Method for determining density of an earth formation78US 5,804,820 AJapan National Oil Corporation · 1998
- Methods and apparatus for gamma-ray spectroscopy and like measurements71US 4,883,956 ASchlumberger Technology Corporation · 1989
- Method and apparatus for determining density of earth formations59US 5,608,215 ASchlumberger Technology Corporation · 1997