G01V 3/40
Electric or magnetic prospecting or detecting: specially adapted for measuring magnetic field
Official title: specially adapted for measuring magnetic field characteristics of the earth
G01V3/40 (Electric or magnetic prospecting or detecting: specially adapted for measuring magnetic field) appears on 76 US grants and 76 published applications in this corpus.
Search patents in G01V- Granted patents
- 76
- Published applications
- 76
- Assignees
- 74
- Inventors
- 234
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 7 |
| 2014 | 2 | 8 |
| 2015 | 4 | 9 |
| 2016 | 6 | 8 |
| 2017 | 5 | 3 |
| 2018 | 5 | 6 |
| 2019 | 10 | 6 |
| 2020 | 6 | 2 |
| 2021 | 3 | 6 |
| 2022 | 6 | 3 |
| 2023 | 5 | 3 |
| 2024 | 5 | 6 |
| 2025 | 5 | 3 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Integration and calibration method of geomagnetic vector measuring device for exploration9 Jun 2026US 12,650,536 B2Zhongkan Geophysical Co. Ltd.
- Integration and calibration method of geomagnetic vector measuring device for exploration16 Sep 2025US 12,416,743 B1Zhongkan Geophysical Co. Ltd.
- System and method for using a magnetometer in a gyro-while-drilling survey tool19 Aug 2025US 12,392,237 B2Gyrodata, Incorporated
- Estimating magnetic field using a network of satellites6 May 2025US 12,292,542 B2The Johns Hopkins University
- Magnetic velocity and position sensors29 Apr 2025US 12,287,411 B2Archaius Inc.
- Three-dimensional inversion method and device for electrical source transient electromagnetic data, and storage medium26 Mar 2026US 2026/0086262 A1Institute of Geology and Geophysics, Chinese Academy of Sciences
- Integration and Calibration Method of Geomagnetic Vector Measuring Device for Exploration9 Oct 2025US 2025/0314801 A1Zhongkan Geophysical Co. Ltd.
- Magnetic velocity and position sensors14 Aug 2025US 2025/0258298 A1Archaius Inc.
- Methods for magnetic data acquisition in marine environment31 Jul 2025US 2025/0244496 A1Maracq AS
- Magnetometer Array System For Magnetically Noisy Environments24 Oct 2024US 2024/0353504 A1The Regents of the University of Michigan
Most cited
By later US patents
- Process for determining the direction of the earth's magnetic field67US 6,009,629 ALeica Geosystems AG · 2000
- Atomic magnetometer with multiple spatial channels56US 9,995,800 B1National Technology & Engineering Solutions of Sandia, LLC · 2018
- Non-superconducting apparatus for detecting magnetic and electromagnetic fields34US 4,724,390 A1988
- Method of operating an installation that comprises one or more long electrical conductors28US 5,184,311 AAT&T Bell Laboratories · 1993
- Method and apparatus for correcting the output of an onboard vehicle terrestrial magnetism sensor20US 5,151,872 APioneer Electronic Corporation · 1992