G01C 21/08
Involving use of the magnetic field of the earth
Official title: involving use of the magnetic field of the earth
G01C21/08 (Involving use of the magnetic field of the earth) appears on 200 US grants and 252 published applications in this corpus.
Search patents in G01C- Granted patents
- 200
- Published applications
- 252
- Assignees
- 146
- Inventors
- 474
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 3 | 2 |
| 2008 | 3 | 0 |
| 2009 | 2 | 2 |
| 2010 | 1 | 2 |
| 2011 | 1 | 0 |
| 2012 | 2 | 5 |
| 2013 | 0 | 12 |
| 2014 | 3 | 10 |
| 2015 | 12 | 8 |
| 2016 | 8 | 19 |
| 2017 | 10 | 31 |
| 2018 | 17 | 13 |
| 2019 | 27 | 22 |
| 2020 | 18 | 24 |
| 2021 | 11 | 13 |
| 2022 | 18 | 13 |
| 2023 | 17 | 16 |
| 2024 | 11 | 17 |
| 2025 | 18 | 22 |
| 2026 | 10 | 15 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Using magnetic-sensor data to correct for INS drift6 Oct 2026US 12,754,020 B2Astra Navigation, Inc.
- Method and device for compensating vertical magnetic defaults of a magnetometer installed in an aircraft15 Sep 2026US 12,736,347 B2Thales
- Authenticating a device using geofencing data1 Sep 2026US 12,723,875 B2Astra Navigation, Inc.
- Geophysical field sensing-based navigation26 May 2026US 12,638,293 B2SB Technology, Inc.
- Controlling motion with magnetometers12 May 2026US 12,625,201 B2Astra Navigation, Inc.
- Using Magnetic-Sensor Data to Correct for INS Drift17 Sep 2026US 2026/0276385 A1Astra Navigation, Inc.
- Modular adaptive magnetic navigation30 Jul 2026US 2026/0219072 A1SB Technology, Inc.
- Method for operating a working apparatus in a pipeline, and working apparatus25 Jun 2026US 2026/0177184 A1
- Lorentz force velocimeter11 Jun 2026US 2026/0160555 A1Honeywell International Inc.
- System for detecting direction of movement, wearable electronic device, and method for detecting direction of movement in said system and said wearable electronic device11 Jun 2026US 2026/0161138 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Vehicle bearing detection and data processing methods applicable to vehicle navigation system183US 4,890,233 APioneer Electronic Corporation · 1989
- Digital compass with multiple sensing and reporting capability111US 6,243,660 B1Precision Navigation, Inc. · 2001
- Solid state orientation sensor with 360 degree measurement capability89US 7,143,004 B2Microstrain, Inc. · 2006
- Method and system for estimating navigability of terrain82US 7,272,474 B1Carnegie Mellon University · 2007
- Magnetic navigation system71US 8,311,767 B1Lockheed Martin Corporation · 2012