G01R 21/02
Arrangements for measuring electric power or power factor: by thermal methods
Official title: by thermal methods {, e.g. calorimetric}
G01R21/02 (Arrangements for measuring electric power or power factor: by thermal methods) appears on 98 US grants and 68 published applications in this corpus.
Search patents in G01R- Granted patents
- 98
- Published applications
- 68
- Assignees
- 80
- Inventors
- 205
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 2 | 2 |
| 2006 | 2 | 0 |
| 2007 | 0 | 4 |
| 2008 | 1 | 4 |
| 2009 | 0 | 1 |
| 2010 | 4 | 3 |
| 2011 | 3 | 0 |
| 2012 | 0 | 2 |
| 2013 | 0 | 7 |
| 2014 | 5 | 1 |
| 2015 | 3 | 3 |
| 2016 | 4 | 4 |
| 2017 | 1 | 1 |
| 2018 | 6 | 1 |
| 2019 | 2 | 2 |
| 2020 | 3 | 6 |
| 2021 | 2 | 2 |
| 2022 | 7 | 1 |
| 2023 | 2 | 2 |
| 2024 | 2 | 6 |
| 2025 | 2 | 5 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Self-calibrating radio frequency calorimeter28 Jul 2026US 12,693,318 B2Bird Technologies Group Inc.
- System and method for personal energy consumption change payback determination using distributed computational resources9 Jun 2026US 12,651,215 B2Clean Power Research, L.L.C.
- Configurable test platform2 Jun 2026US 12,644,822 B2PassiveLogic, Inc.
- System and method for empirical electrical-space-heating-based building overall thermal performance estimation with the aid of a digital computer16 Dec 2025US 12,499,392 B2Clean Power Research, L.L.C.
- Power control system and method for motor preheating1 Apr 2025US 12,265,106 B2Delta Electronics, Inc.
- Self-calibrated radio frequency calorimeter1 Oct 2026US 2026/0298989 A1Bird Technologies Group Inc.
- System and method for personal energy consumption change payback determination in a multi-dwelling building environment1 Oct 2026US 2026/0300853 A1Clean Power Research, L.L.C.
- Systems and methods for determining when to trigger an abort process during semiconductor fabrication processing24 Sep 2026US 2026/0287676 A1ASM IP Holding B. V.
- Configurable Test Platform20 Aug 2026US 2026/0243656 A1PassiveLogic, Inc.
- System for determination of a quantity of emissions of carbon dioxide resulting from the heating of an electrical conductor of an electrical cable by the Joule effect16 Oct 2025US 2025/0321198 A1
Most cited
By later US patents
- Power measurement system32US 7,026,807 B2Agilent Technologies, Inc. · 2006
- High frequency power sensing device30US 4,977,366 ALucas Weinschel, Inc. · 1990
- RF power monitor utilizing bi-directional coupler23US 4,034,289 AMotorola, Inc. · 1977
- Wide dynamic range radio-frequency power sensor22US 4,943,764 AHewlett-Packard Company · 1990
- Microwave wattage indicator19US 4,916,386 A1990