G01C 17/28
Electromagnetic compasses
Official title: Electromagnetic compasses (with north seeking magnetic elements and having electric pick-offs G01C17/26)
G01C17/28 (Electromagnetic compasses) appears on 437 US grants and 347 published applications in this corpus.
Search patents in G01C- Granted patents
- 437
- Published applications
- 347
- Assignees
- 238
- Inventors
- 796
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 3 | 0 |
| 1978 | 6 | 0 |
| 1979 | 5 | 0 |
| 1980 | 1 | 0 |
| 1981 | 6 | 0 |
| 1982 | 0 | 0 |
| 1983 | 6 | 0 |
| 1984 | 9 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 8 | 0 |
| 1993 | 10 | 0 |
| 1994 | 8 | 0 |
| 1995 | 6 | 0 |
| 1996 | 7 | 0 |
| 1997 | 8 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 8 | 0 |
| 2001 | 4 | 2 |
| 2002 | 9 | 4 |
| 2003 | 3 | 12 |
| 2004 | 6 | 11 |
| 2005 | 9 | 22 |
| 2006 | 9 | 16 |
| 2007 | 18 | 24 |
| 2008 | 13 | 15 |
| 2009 | 8 | 17 |
| 2010 | 13 | 16 |
| 2011 | 12 | 12 |
| 2012 | 13 | 13 |
| 2013 | 9 | 12 |
| 2014 | 12 | 15 |
| 2015 | 12 | 18 |
| 2016 | 14 | 12 |
| 2017 | 13 | 18 |
| 2018 | 12 | 16 |
| 2019 | 17 | 11 |
| 2020 | 12 | 16 |
| 2021 | 14 | 14 |
| 2022 | 9 | 11 |
| 2023 | 13 | 13 |
| 2024 | 16 | 11 |
| 2025 | 17 | 11 |
| 2026 | 4 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electronic device for identifying moving direction of electronic device, and operating method for electronic device8 Sep 2026US 12,729,961 B2Samsung Electronics Co., Ltd.
- Dynamic selection of parameters for navigation16 Jun 2026US 12,656,116 B1Astra Navigation, Inc.
- Electronic device, calibration method and program16 Jun 2026US 12,656,117 B2Casio Computer Co., Ltd.
- Electronic device and operation method thereof20 Jan 2026US 12,529,560 B2Samsung Electronics Co., Ltd.
- Display unit with monitoring features16 Dec 2025US 12,498,601 B2Manufacturing Resources International, Inc.
- 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.
- Azimuth measurement device7 May 2026US 2026/0126289 A1Murata Manufacturing Co., Ltd.
- Geomagnetic field disturbance monitoring and correction19 Feb 2026US 2026/0049817 A1Lockheed Martin Corporation
- Display unit with monitoring features5 Feb 2026US 2026/0036841 A1Manufacturing Resources International, Inc.
Most cited
By later US patents
- Vehicle compass system with variable resolution640US 5,878,370 APrince Corporation · 1999
- Electrical control system503US 4,546,551 APrince Corporation · 1985
- Vehicle information display473US 5,576,687 ADonnelly Corporation · 1996
- Compensation system for electronic compass442US 5,632,092 ADonnelly Corporation · 1997
- Vehicle compass with electronic sensor416US 5,255,442 ADonnelly Corporation · 1993