G01V 5/125
And detecting the secondary gamma- or x-rays in different places along the
Official title: {and detecting the secondary gamma- or X-rays in different places along the bore hole}
G01V5/125 (And detecting the secondary gamma- or x-rays in different places along the) appears on 165 US grants and 153 published applications in this corpus.
Search patents in G01V- Granted patents
- 165
- Published applications
- 153
- Assignees
- 49
- Inventors
- 252
- Latest grant
- 30 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 6 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 5 |
| 2003 | 4 | 2 |
| 2004 | 4 | 10 |
| 2005 | 4 | 3 |
| 2006 | 2 | 3 |
| 2007 | 5 | 6 |
| 2008 | 7 | 6 |
| 2009 | 8 | 7 |
| 2010 | 4 | 6 |
| 2011 | 3 | 12 |
| 2012 | 1 | 5 |
| 2013 | 7 | 7 |
| 2014 | 12 | 6 |
| 2015 | 3 | 10 |
| 2016 | 8 | 12 |
| 2017 | 10 | 6 |
| 2018 | 6 | 11 |
| 2019 | 16 | 12 |
| 2020 | 10 | 4 |
| 2021 | 3 | 7 |
| 2022 | 2 | 7 |
| 2023 | 4 | 2 |
| 2024 | 4 | 2 |
| 2025 | 1 | 2 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for downhole measurements30 Jun 2026US 12,669,048 B1Schlumberger Technology Corporation
- Determinations of standoff and mud density with gamma density and acoustic tool responses24 Feb 2026US 12,560,736 B2Baker Hughes Oilfield Operations LLC
- Density measurement of a selected layer by gamma spectral deconvolution27 Jan 2026US 12,535,614 B2Halliburton Energy Services.Inc.
- System and method for a cement and casing flaw detector with multi-sized21 Oct 2025US 12,449,559 B2Baker Hughes Oilfield Operations LLC
- Rotatable imaging sensor in a wellbore20 Aug 2024US 12,066,406 B1DarkVision Technologies Inc.
- System and method for a cement and casing flaw detector with multi-sized windows and contrast suppression20 Feb 2025US 2025/0060508 A1Baker Hughes Oilfield Operations LLC
- Determinations of standoff and mud density with gamma density and acoustic tool responses2 Jan 2025US 2025/0004161 A1Baker Hughes Oilfield Operations LLC
- Rotatable imaging sensor in a wellbore19 Sep 2024US 2024/0310332 A1DarkVision Technologies Inc.
- Apparatus and method for characterizing liner and annulus properties with a gamma-gamma tool23 May 2024US 2024/0167377 A1Schlumberger Technology Corporation
- Methods and Means for Identifying Fluid Type Inside a Conduit6 Jul 2023US 2023/0213459 A1Visuray Intech Ltd (BVI)
Most cited
By later US patents
- 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
- Method for analyzing formation data from a formation evaluation measurement-while-drilling logging tool57US 5,397,893 ABaker Hughes Incorporated · 1995
- Method for analyzing formation data from a formation evaluation MWD logging tool55US 5,091,644 ATeleco Oilfield Services Inc. · 1992
- Method and apparatus for determining oriented density measurements including stand-off corrections53US 6,584,837 B2Baker Hughes Incorporated · 2003