G01R 21/127
Arrangements for measuring electric power or power factor: by using pulse modulation
Official title: by using pulse modulation (G01R21/133 takes precedence)
G01R21/127 (Arrangements for measuring electric power or power factor: by using pulse modulation) appears on 107 US grants and 49 published applications in this corpus.
Search patents in G01R- Granted patents
- 107
- Published applications
- 49
- Assignees
- 54
- Inventors
- 133
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 4 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 5 | 0 |
| 1989 | 5 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 2 |
| 2003 | 1 | 0 |
| 2004 | 1 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 2 | 16 |
| 2011 | 1 | 0 |
| 2012 | 3 | 2 |
| 2013 | 4 | 1 |
| 2014 | 3 | 1 |
| 2015 | 5 | 6 |
| 2016 | 4 | 4 |
| 2017 | 2 | 3 |
| 2018 | 6 | 1 |
| 2019 | 0 | 3 |
| 2020 | 7 | 0 |
| 2021 | 1 | 2 |
| 2022 | 0 | 0 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
| 2025 | 1 | 0 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for calculating the output power of a flyback converter21 Apr 2026US 12,609,620 B2Semiconductor Components Industries, LLC
- Power-meter apparatus, circuits and methods13 Jan 2026US 12,523,686 B2NXP USA, Inc.
- Shunt voltage to digital power sequence conversion with auto-calibrated transconductor, error cancelling reference and current to power converter1 Apr 2025US 12,267,002 B2Analog Devices International Unlimited Company
- Tracking energy consumption using a buck-boosting technique2 Apr 2024US 11,946,961 B2Texas Instruments Incorporated
- Signal adjustment device and signal adjustment method9 May 2023US 11,644,491 B2Realtek Semiconductor Corp.
- System and method for calculating the output power of a flyback converter8 Jan 2026US 2026/0009828 A1Semiconductor Components Industries, LLC
- Tracking energy consumption using a buck-boosting technique20 Jun 2024US 2024/0201234 A1
- Power-meter apparatus, circuits and methods18 Apr 2024US 2024/0125830 A1NXP USA, Inc.
- Shunt voltage to digital power sequence conversion with auto-calibrated transconductor, error cancelling reference and current to power converter9 Feb 2023US 2023/0037712 A1Analog Devices International Unlimited Company
- Signal adjustment device and signal adjustment method16 Dec 2021US 2021/0389355 A1Realtek Semiconductor Corp.
Most cited
By later US patents
- Electronic electric-energy meter60US 4,463,311 ATokyo Shibaura Denki Kabushiki Kaisha · 1984
- Electronic ampere-hour meter54US 4,264,861 AInstitutul de Cercetari Pentru Industria Electrotehnica · 1981
- Watthour meter for wye connected systems51US 4,896,106 ALandis & Gyr Metering, Inc. · 1990
- Time of use register for use with a utility meter51US 5,270,639 ALandis & Gyr Metering, Inc. · 1993
- Arrangement for measuring an electrical power or energy50US 5,032,785 ALandis & Gyr Betriebs AG · 1991