G01V 5/12
Using gamma or x-ray sources
Official title: using gamma or X-ray sources {(gamma sources using isotopes G21G4/00; X-ray tubes H01J35/00)}
G01V5/12 (Using gamma or x-ray sources) appears on 423 US grants and 382 published applications in this corpus.
Search patents in G01V- Granted patents
- 423
- Published applications
- 382
- Assignees
- 126
- Inventors
- 683
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 9 | 0 |
| 1987 | 7 | 0 |
| 1988 | 0 | 0 |
| 1989 | 6 | 0 |
| 1990 | 4 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 7 | 0 |
| 1996 | 7 | 0 |
| 1997 | 5 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 8 |
| 2003 | 8 | 5 |
| 2004 | 6 | 10 |
| 2005 | 4 | 4 |
| 2006 | 4 | 3 |
| 2007 | 5 | 10 |
| 2008 | 8 | 8 |
| 2009 | 10 | 10 |
| 2010 | 5 | 9 |
| 2011 | 4 | 15 |
| 2012 | 3 | 8 |
| 2013 | 9 | 13 |
| 2014 | 18 | 16 |
| 2015 | 12 | 26 |
| 2016 | 18 | 28 |
| 2017 | 27 | 31 |
| 2018 | 28 | 41 |
| 2019 | 39 | 31 |
| 2020 | 26 | 20 |
| 2021 | 26 | 26 |
| 2022 | 13 | 21 |
| 2023 | 19 | 16 |
| 2024 | 18 | 8 |
| 2025 | 8 | 12 |
| 2026 | 12 | 3 |
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
- Multi-sector data correction method and system for gamma imaging while drilling14 Jul 2026US 12,681,204 B2China Petroleum & Chemical Corporation
- Systems and methods for downhole measurements30 Jun 2026US 12,669,048 B1Schlumberger Technology Corporation
- Detecting anomalies in annular materials of single and dual casing string environments21 Apr 2026US 12,607,766 B2Visuray Technology Ltd
- Gamma fusion computing method based on gamma probe state parameters21 Apr 2026US 12,607,767 B2China National Petroleum Corporation
- Borhole correction of formation photoelectric factors23 Jul 2026US 2026/0211149 A1Schlumberger Technology Corporation
- Tubular azimuthal gamma ray tool and applications thereof30 Apr 2026US 2026/0118529 A1China Petroleum & Chemical Corporation
- Determination of mineralogy and lithology from elemental data1 Jan 2026US 2026/0003096 A1Halliburton Energy Services.Inc.
- System and method of enhanced stratigraphic zonation and correlation of basinal carbonate mudstone through multivariate statistical analysis11 Dec 2025US 2025/0377478 A1King Fahd University of Petroleum and Minerals
- Ai-assisted stratigraphic modeling and geosteering utilizing gamma ray measurements4 Dec 2025US 2025/0369288 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Apparatus and methods for determining gravel pack quality73US 6,552,333 B1Halliburton Energy Services.Inc. · 2003
- Method and apparatus for subsurface formation evaluation69US 4,879,463 ASchlumberger Technology Corporation · 1989
- Doubly-compensated dual-detector density logging apparatus66US 4,048,495 ASchlumberger Technology Corporation · 1977
- Compensation of errors in logging-while-drilling density measurements58US 6,307,199 B1Schlumberger Technology Corporation · 2001
- Formation density logging MWD apparatus57US 5,134,285 ATeleco Oilfield Services Inc. · 1992