G01R 15/20
Using galvano-magnetic devices
Official title: using galvano-magnetic devices, e.g. Hall-effect devices {, i.e. measuring a magnetic field via the interaction between a current and a magnetic field, e.g. magneto resistive or Hall effect devices}
G01R15/20 (Using galvano-magnetic devices) appears on 1,715 US grants and 1,952 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,715
- Published applications
- 1,952
- Assignees
- 661
- Inventors
- 3,095
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 1 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 5 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 14 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 8 | 0 |
| 1996 | 10 | 0 |
| 1997 | 8 | 0 |
| 1998 | 6 | 0 |
| 1999 | 10 | 0 |
| 2000 | 4 | 0 |
| 2001 | 17 | 4 |
| 2002 | 21 | 8 |
| 2003 | 22 | 19 |
| 2004 | 20 | 17 |
| 2005 | 11 | 28 |
| 2006 | 20 | 43 |
| 2007 | 32 | 47 |
| 2008 | 27 | 26 |
| 2009 | 37 | 35 |
| 2010 | 35 | 38 |
| 2011 | 26 | 47 |
| 2012 | 22 | 49 |
| 2013 | 35 | 89 |
| 2014 | 44 | 76 |
| 2015 | 73 | 94 |
| 2016 | 78 | 85 |
| 2017 | 80 | 93 |
| 2018 | 84 | 108 |
| 2019 | 93 | 126 |
| 2020 | 114 | 123 |
| 2021 | 126 | 119 |
| 2022 | 134 | 131 |
| 2023 | 111 | 119 |
| 2024 | 106 | 199 |
| 2025 | 135 | 132 |
| 2026 | 91 | 97 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Current measurement device6 Oct 2026US 12,754,213 B2MultiDimension Technology Co., Ltd.
- Residual current detection device6 Oct 2026US 12,754,214 B2Voltafield Technology Corporation
- Current sensor for multiple currents6 Oct 2026US 12,754,215 B2Melexis Technologies SA
- Current sensor6 Oct 2026US 12,754,216 B2Schaeffler Technologies AG & Co. KG
- Current sensor6 Oct 2026US 12,754,217 B2MultiDimension Technology Co., Ltd.
- Device for Determining an Electric Current Through a Line in a Vehicle8 Oct 2026US 2026/0309752 A1Bayerische Motoren Werke Aktiengesellschaft
- Current sensor and manufacturing method of current sensor8 Oct 2026US 2026/0309753 A1Asahi Kasei Microdevices Corporation
- Positionally-robust current sensors8 Oct 2026US 2026/0309810 A1CTS Corporation
- Non-contact multi-wire current measurement system1 Oct 2026US 2026/0298985 A1Huizhou City Fu Yi Electronic Technology Co., Ltd.
- Comprehensive detection and analysis apparatus for cable terminal of photovoltaic power station1 Oct 2026US 2026/0299049 A1China Railway Seventh Bureau Group Co., Ltd.
Most cited
By later US patents
- Apparatus for measuring voltages and currents using non-contacting sensors219US 5,473,244 A1995
- Integrated sensor199US 7,259,545 B2Allegro MicroSystems, LLC · 2007
- Integrable current sensors184US 5,041,780 ACalifornia Institute of Technology · 1991
- Integrated current sensor175US 6,781,359 B2Allegro MicroSystems, LLC · 2004
- Current monitor system and a method for manufacturing it157US 6,356,068 B1ams International AG · 2002