G01C 17/38
Testing, calibrating, or compensating of compasses
G01C17/38 (Testing, calibrating, or compensating of compasses) appears on 609 US grants and 551 published applications in this corpus.
Search patents in G01C- Granted patents
- 609
- Published applications
- 551
- Assignees
- 297
- Inventors
- 1,047
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 5 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 6 | 0 |
| 1988 | 11 | 0 |
| 1989 | 9 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 12 | 0 |
| 1993 | 4 | 0 |
| 1994 | 16 | 0 |
| 1995 | 4 | 0 |
| 1996 | 7 | 0 |
| 1997 | 6 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 7 | 0 |
| 2001 | 9 | 2 |
| 2002 | 10 | 11 |
| 2003 | 10 | 6 |
| 2004 | 6 | 15 |
| 2005 | 18 | 26 |
| 2006 | 15 | 24 |
| 2007 | 24 | 25 |
| 2008 | 23 | 19 |
| 2009 | 13 | 21 |
| 2010 | 14 | 19 |
| 2011 | 16 | 29 |
| 2012 | 17 | 23 |
| 2013 | 17 | 41 |
| 2014 | 20 | 30 |
| 2015 | 29 | 30 |
| 2016 | 32 | 33 |
| 2017 | 24 | 34 |
| 2018 | 29 | 25 |
| 2019 | 29 | 20 |
| 2020 | 29 | 27 |
| 2021 | 19 | 21 |
| 2022 | 18 | 12 |
| 2023 | 17 | 18 |
| 2024 | 17 | 16 |
| 2025 | 17 | 15 |
| 2026 | 7 | 9 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electronic device for calibrating geomagnetic sensor, and method of operating electronic device22 Sep 2026US 12,742,642 B2Samsung Electronics Co., Ltd.
- Electronic device, calibration method and program16 Jun 2026US 12,656,117 B2Casio Computer Co., Ltd.
- Mitigating systematic error in gyrocompassing19 May 2026US 12,631,474 B2Murata Manufacturing Co., Ltd.
- Method and device for orienting5 May 2026US 12,618,672 B2Wuhan University
- Using magnetic-sensor data to correct for INS drift5 May 2026US 12,618,677 B2Astra Navigation, Inc.
- Method and device for orienting27 Aug 2026US 2026/0251451 A1Wuhan University
- Systems and methods for field setup of gas leak monitoring tools13 Aug 2026US 2026/0235405 A1Schlumberger Technology Corporation
- Electronic device and method for acquiring calibration information to be applied to sensor data of geomagnetic sensor6 Aug 2026US 2026/0227204 A1Samsung Electronics Co., Ltd.
- Modular adaptive magnetic navigation30 Jul 2026US 2026/0219072 A1SB Technology, Inc.
- Azimuth measurement device7 May 2026US 2026/0126289 A1Murata Manufacturing Co., Ltd.
Most cited
By later US patents
- Vehicle compass system with automatic calibration639US 5,737,226 APrince Corporation · 1998
- Vehicle compass system629US 5,761,094 APrince Corporation · 1998
- Rearview mirror with integrated microwave receiver583US 6,297,781 B1Gentex Corporation · 2001
- Electrical control system503US 4,546,551 APrince Corporation · 1985
- Vehicle compass with automatic continuous calibration481US 4,953,305 APrince Corporation · 1990