G01R 29/04
Measuring form factor, i.e. quotient of root-mean-square value and arithmetic mean of
Official title: Measuring form factor, i.e. quotient of root-mean-square value and arithmetic mean of instantaneous value; Measuring peak factor, i.e. quotient of maximum value and root-mean-square value
G01R29/04 (Measuring form factor, i.e. quotient of root-mean-square value and arithmetic mean of) appears on 18 US grants and 10 published applications in this corpus.
Search patents in G01R- Granted patents
- 18
- Published applications
- 10
- Assignees
- 20
- Inventors
- 35
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 1 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 2 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 2 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 0 |
| 2014 | 1 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 1 |
| 2023 | 0 | 0 |
| 2024 | 1 | 1 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Analysis method and apparatus for high-frequency QRS waveform curve, computer device and storage medium30 Dec 2025US 12,510,576 B2HyperBio Biological Technology Co., Ltd
- Thermal runaway prognosis by detecting abnormal cell voltage and SOC degeneration8 Jul 2025US 12,352,788 B2GM Global Technology Operations LLC
- Efficient compression of sensor data20 Feb 2024US 11,906,330 B1Itron, Inc.
- Pulse disturbance weighting detector15 Apr 2014US 8,699,504 B2Rohde & Schwarz GmbH & Co.KG
- Root mean square (RMS) metering devices and methods for generating RMS current level to both high or low frequency within signal30 Apr 2013US 8,433,743 B2Maxim Intergrated Products, Inc.
- High-frequency qrs waveform curve analysis method and apparatus, computer device and storage medium21 Aug 2025US 2025/0264511 A1HyperBio Biological Technology Co., Ltd
- Efficient compression of sensor data22 Feb 2024US 2024/0060795 A1Itron, Inc.
- Thermal runaway prognosis by detecting abnormal cell voltage and soc degeneration3 Nov 2022US 2022/0352737 A1GM Global Technology Operations LLC
- RMS Metering Devices and Methods29 Apr 2010US 2010/0106763 A1Maxim Intergrated Products, Inc.
- Input signal level detection apparatus and method9 Jul 2009US 2009/0174436 A1Samsung Electronics Co., Ltd.
Most cited
By later US patents
- Waveform disturbance detection apparatus and method56US 4,694,402 ABasic Measuring Instruments · 1987
- Multi-mode measuring system55US 5,144,226 ACore Industries, Inc. · 1992
- Waveform quality measuring method and apparatus19US 5,974,087 AAdvantest Corporation · 1999
- Instrument to measure the errors of apparent power meters14US 4,937,520 ACanadian Patents and Development Limited · 1990
- Device for sensing the operative status of electrical equipment6US 4,045,732 APioneer Electronic Corporation · 1977