G01V 3/08
Operating with magnetic or electric fields produced or modified by objects or
Official title: operating with magnetic or electric fields produced or modified by objects or geological structures or by detecting devices (with electromagnetic waves G01V3/12)
G01V3/08 (Operating with magnetic or electric fields produced or modified by objects or) appears on 3,369 US grants and 3,034 published applications in this corpus.
Search patents in G01V- Granted patents
- 3,369
- Published applications
- 3,034
- Assignees
- 1,470
- Inventors
- 5,572
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 33 | 0 |
| 1977 | 23 | 0 |
| 1978 | 27 | 0 |
| 1979 | 12 | 0 |
| 1980 | 15 | 0 |
| 1981 | 25 | 0 |
| 1982 | 21 | 0 |
| 1983 | 11 | 0 |
| 1984 | 29 | 0 |
| 1985 | 19 | 0 |
| 1986 | 19 | 0 |
| 1987 | 26 | 0 |
| 1988 | 15 | 0 |
| 1989 | 42 | 0 |
| 1990 | 29 | 0 |
| 1991 | 37 | 0 |
| 1992 | 22 | 0 |
| 1993 | 21 | 0 |
| 1994 | 21 | 0 |
| 1995 | 34 | 0 |
| 1996 | 44 | 0 |
| 1997 | 38 | 0 |
| 1998 | 41 | 0 |
| 1999 | 36 | 0 |
| 2000 | 36 | 0 |
| 2001 | 42 | 12 |
| 2002 | 50 | 32 |
| 2003 | 56 | 62 |
| 2004 | 44 | 66 |
| 2005 | 39 | 52 |
| 2006 | 69 | 72 |
| 2007 | 56 | 64 |
| 2008 | 56 | 104 |
| 2009 | 55 | 110 |
| 2010 | 81 | 126 |
| 2011 | 87 | 89 |
| 2012 | 88 | 88 |
| 2013 | 57 | 107 |
| 2014 | 83 | 150 |
| 2015 | 80 | 182 |
| 2016 | 126 | 156 |
| 2017 | 161 | 184 |
| 2018 | 167 | 193 |
| 2019 | 227 | 210 |
| 2020 | 201 | 191 |
| 2021 | 194 | 171 |
| 2022 | 167 | 162 |
| 2023 | 145 | 150 |
| 2024 | 162 | 135 |
| 2025 | 132 | 99 |
| 2026 | 68 | 67 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- G01V 3/10Using induction coils1,365
- G01V 3/081The magnetic field is produced by the objects or geological structures669
- G01V 3/088Operating with electric fields394
- G01V 3/083Controlled source electromagnetic [csem] surveying328
- G01V 3/082Operating with fields produced by spontaneous potentials84
- G01V 3/087The earth magnetic field being modified by the objects or geological structures64
Recent patents
- Seal pocket detection assembly6 Oct 2026US 12,754,339 B2FMC Technologies, Inc.
- Inductive sensor-based battery presence detection in device enclosures and related methods29 Sep 2026US 12,748,233 B2DISH Network L.L.C.
- Sensor device having first induction coil set and second induction coil set for determining position change of metal item29 Sep 2026US 12,748,234 B2Getac Technology Corporation
- Management system and management method29 Sep 2026US 12,748,235 B2Sintokogio, Ltd.
- Aerosol-generating device15 Sep 2026US 12,733,686 B2Kt&G Corporation
- Inversion method and system for hydro-thermal of permafrost coupled insar with ert8 Oct 2026US 2026/0309866 A1Institute of Mountain Hazards and Environment, CAS
- Wall detection instrument8 Oct 2026US 2026/0309888 A1Yongzhou Noyafa Electronic Co., Ltd.
- Contact determination apparatus8 Oct 2026US 2026/0309889 A1Alps Alpine Co., Ltd.
- Frequency selection optimization in locating a utility line1 Oct 2026US 2026/0299156 A1The Charles Machine Works, Inc.
- Object detection in wireless charging1 Oct 2026US 2026/0299157 A1Tesla, Inc.
Most cited
By later US patents
- Medical navigation apparatus886US 7,174,202 B2British Telecommunications plc · 2007
- Tracking system to follow the position and orientation of a device with radiofrequency field gradients749US 5,211,165 AGeneral Electric Company · 1993
- Position location system646US 5,913,820 ABritish Telecommunications Public Ltd.Co. · 1999
- Medical instrument location means591US 5,099,845 AMicronix Pty Ltd. · 1992
- Catheter locating device540US 4,173,228 AApplied Medical Devices, Inc. · 1979