G01C 17/20
Observing the compass card or needle
G01C17/20 (Observing the compass card or needle) appears on 77 US grants and 23 published applications in this corpus.
Search patents in G01C- Granted patents
- 77
- Published applications
- 23
- Assignees
- 38
- Inventors
- 99
- Latest grant
- 5 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 4 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 5 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 2 |
| 2004 | 2 | 4 |
| 2005 | 1 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 2 | 2 |
| 2012 | 0 | 0 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 2 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 0 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Enhanced wearable device operation5 Jul 2022US 11,381,933 B2Ford Global Technologies, LLC
- Compass device22 Jun 2021US 11,041,721 B2Chuan Ching Mechanical Industrial Co., Ltd.
- Optoelectronic measuring device with magnetic compass and compensation functionality12 May 2020US 10,648,808 B2Safran Vectronix AG
- Magnetic compass14 Jul 2015US 9,080,869 B2
- Mirrored compass with improved sighting window26 May 2015US 9,038,280 B2Fenix Outdoor AB
- System and methods for a removable compass30 Oct 2025US 2025/0334409 A1
- Tactical glove and compass19 Dec 2024US 2024/0415213 A1
- Method of displaying compass headings7 Oct 2021US 2021/0310808 A1
- Compass device25 Feb 2021US 2021/0055106 A1Chuan Ching Mechanical Industrial Co., Ltd.
- Enhanced wearable device operation21 May 2020US 2020/0162845 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Magnetic compass system for a vehicle227US 4,862,594 ADonnelly Corporation · 1989
- Magnetic compass with optical encoder215US 4,937,945 ADonnelly Corporation · 1990
- Electronic compass for automotive vehicles59US 4,402,142 A1983
- Heading sensor44US 4,656,750 AStandard Telephones and Cables Public Limited Company · 1987
- High resolution compass card position decoder42US 4,414,754 ALaitram, L. L. C. · 1983