G01C 21/04
Navigation: by terrestrial means
Official title: by terrestrial means (G01C21/24, G01C21/26 take precedence)
G01C21/04 (Navigation: by terrestrial means) appears on 307 US grants and 374 published applications in this corpus.
Search patents in G01C- Granted patents
- 307
- Published applications
- 374
- Assignees
- 210
- Inventors
- 678
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 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 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 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 | 4 |
| 2006 | 1 | 2 |
| 2007 | 3 | 4 |
| 2008 | 4 | 0 |
| 2009 | 4 | 4 |
| 2010 | 3 | 5 |
| 2011 | 1 | 3 |
| 2012 | 2 | 6 |
| 2013 | 2 | 12 |
| 2014 | 7 | 20 |
| 2015 | 18 | 16 |
| 2016 | 16 | 27 |
| 2017 | 18 | 38 |
| 2018 | 22 | 26 |
| 2019 | 33 | 39 |
| 2020 | 28 | 35 |
| 2021 | 22 | 24 |
| 2022 | 33 | 20 |
| 2023 | 24 | 20 |
| 2024 | 17 | 22 |
| 2025 | 21 | 25 |
| 2026 | 14 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- System and methodology to provide an augmented view of an environment external to an aircraft during flight25 Aug 2026US 12,716,725 B2Gulfstream Aerospace Corporation
- System and method for mapping vectorization and navigation system using convolutional neural network18 Aug 2026US 12,710,765 B2Aliensense Limited
- Using Magnetic-Sensor Data to Correct for INS Drift17 Sep 2026US 2026/0276385 A1Astra Navigation, Inc.
- Method, vehicle and system for weed control management10 Sep 2026US 2026/0262561 A1Bayer Aktiengesellschaft
- Map with sensing and language model semantics20 Aug 2026US 2026/0241958 A1Mobileye Vision Technologies Ltd.
- Advanced system of vehicle fouling detection on track sidings6 Aug 2026US 2026/0227189 A1Transportation IP Holdings, LLC
- Modular adaptive magnetic navigation30 Jul 2026US 2026/0219072 A1SB Technology, Inc.
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