G01R 21/08
Arrangements for measuring electric power or power factor: by using galvanomagnetic-effect devices
Official title: by using galvanomagnetic-effect devices, e.g. Hall-effect devices
G01R21/08 (Arrangements for measuring electric power or power factor: by using galvanomagnetic-effect devices) appears on 102 US grants and 70 published applications in this corpus.
Search patents in G01R- Granted patents
- 102
- Published applications
- 70
- Assignees
- 72
- Inventors
- 171
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 5 | 0 |
| 1989 | 6 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 2 |
| 2012 | 1 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 11 |
| 2015 | 1 | 7 |
| 2016 | 6 | 9 |
| 2017 | 12 | 9 |
| 2018 | 8 | 6 |
| 2019 | 10 | 5 |
| 2020 | 8 | 0 |
| 2021 | 0 | 4 |
| 2022 | 3 | 3 |
| 2023 | 2 | 5 |
| 2024 | 2 | 3 |
| 2025 | 2 | 1 |
| 2026 | 4 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Apparatus for measure of quantity and associated method of manufacturing14 Apr 2026US 12,601,766 B2
- Phase difference measurement device, measurement method, and electrical equipment comprising same14 Apr 2026US 12,601,796 B2Kyoto University
- Methods, systems and devices for monitoring power consumption and generation17 Feb 2026US 12,553,927 B2Powersensor Pty Ltd
- Power line utilization monitoring systems, devices, and methods with microprocessor-based current measurement and remote authentication17 Feb 2026US 12,553,928 B2Electro Rent Corporation
- Contactless power meter2 Dec 2025US 12,487,259 B2Senva Inc.
- Contactless Power Meter30 Jan 2025US 2025/0035683 A1Senva Inc.
- Phase difference measurement device, measurement method, and electrical equipment comprising same14 Nov 2024US 2024/0377485 A1Kyoto University
- Power line utilization monitoring systems, devices, and methods11 Jul 2024US 2024/0230732 A9Electro Rent Corporation
- Power line utilization monitoring systems, devices, and methods25 Apr 2024US 2024/0133931 A1Electro Rent Corporation
- Methods, systems and devices for monitoring power consumption and generation9 Nov 2023US 2023/0358793 A1Powersensor Pty Ltd
Most cited
By later US patents
- Utility meter and submetering system200US 4,804,957 ATriad Communications, Inc. · 1989
- Electric power measurement system and hall effect based electric power meter for use therein90US 4,700,188 AMicronic Interface Technologies · 1987
- Arrangement for measuring electrical power89US 4,742,296 ALGZ Landis & Gyr Zug AG · 1988
- Arrangement for electrical measurement75US 5,124,624 ALandis & Gyr Betriebs AG · 1992
- System for measuring electrical output or energy56US 4,525,668 ALGZ Landis & Gyr Zug AG · 1985