G01R 21/133
Arrangements for measuring electric power or power factor: by using digital technique
Official title: by using digital technique
G01R21/133 (Arrangements for measuring electric power or power factor: by using digital technique) appears on 1,725 US grants and 1,743 published applications in this corpus.
Search patents in G01R- Granted patents
- 1,725
- Published applications
- 1,743
- Assignees
- 855
- Inventors
- 3,700
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 5 | 0 |
| 1978 | 9 | 0 |
| 1979 | 4 | 0 |
| 1980 | 12 | 0 |
| 1981 | 12 | 0 |
| 1982 | 13 | 0 |
| 1983 | 6 | 0 |
| 1984 | 5 | 0 |
| 1985 | 8 | 0 |
| 1986 | 14 | 0 |
| 1987 | 13 | 0 |
| 1988 | 13 | 0 |
| 1989 | 15 | 0 |
| 1990 | 17 | 0 |
| 1991 | 12 | 0 |
| 1992 | 14 | 0 |
| 1993 | 17 | 0 |
| 1994 | 20 | 0 |
| 1995 | 20 | 0 |
| 1996 | 36 | 0 |
| 1997 | 26 | 0 |
| 1998 | 26 | 0 |
| 1999 | 14 | 0 |
| 2000 | 20 | 0 |
| 2001 | 11 | 6 |
| 2002 | 21 | 21 |
| 2003 | 22 | 15 |
| 2004 | 24 | 29 |
| 2005 | 14 | 26 |
| 2006 | 22 | 26 |
| 2007 | 29 | 22 |
| 2008 | 15 | 24 |
| 2009 | 22 | 26 |
| 2010 | 15 | 50 |
| 2011 | 15 | 33 |
| 2012 | 25 | 70 |
| 2013 | 45 | 82 |
| 2014 | 56 | 131 |
| 2015 | 67 | 150 |
| 2016 | 81 | 154 |
| 2017 | 101 | 116 |
| 2018 | 102 | 102 |
| 2019 | 142 | 110 |
| 2020 | 108 | 121 |
| 2021 | 104 | 99 |
| 2022 | 110 | 72 |
| 2023 | 73 | 76 |
| 2024 | 49 | 75 |
| 2025 | 66 | 59 |
| 2026 | 30 | 48 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Power meter determining an operating state6 Oct 2026US 12,754,220 B2Senva Inc.
- Integrated power monitoring system for transient power management on a per-rail or per-subsystem basis6 Oct 2026US 12,756,319 B1Amazon Technologies, Inc.
- Method and system for estimating power consumption and time consumption of electric assisted bicycle8 Sep 2026US 12,728,945 B2Acer Gadget Inc.
- Methods and apparatus to determine an operational status of a device8 Sep 2026US 12,730,137 B2The Nielsen Company (US), LLC
- System and method for measuring power consumption of image capturing apparatus8 Sep 2026US 12,732,602 B2Alpha Networks Inc.
- Utility meter with enhanced communication, data storage, and firmware update capabilities8 Oct 2026US 2026/0309758 A1
- Voltage drop and capacity use calculation system8 Oct 2026US 2026/0309759 A1Basarsoft Bilgi Teknolojileri Anonim Sirketi
- Solar panel efficiency detection and improvement8 Oct 2026US 2026/0312538 A1Itron, Inc.
- On-die power sensor for performing run-time power/voltage/current management1 Oct 2026US 2026/0298990 A1Mediatek Inc.
- Notification method, notification system, and non-transitory computer-readable storage medium storing program1 Oct 2026US 2026/0299858 A1Seiko Epson Corporation
Most cited
By later US patents
- High frequency power measurement1,881US 5,422,567 AValleylab, Inc. · 1995
- Engery management and building automation system884US 5,572,438 ATECO Energy Management Services · 1996
- Power transmission line monitoring system469US 5,006,846 A1991
- System for rate-related control of electrical loads435US 5,696,695 ATeCom AS · 1997
- System and method for home energy monitor and control328US 8,255,090 B2EnergyHub, Inc. · 2012