G01R 19/04
Measuring peak values or amplitude or envelope of ac or of pulses
Official title: Measuring peak values {or amplitude or envelope} of AC or of pulses
G01R19/04 (Measuring peak values or amplitude or envelope of ac or of pulses) appears on 514 US grants and 356 published applications in this corpus.
Search patents in G01R- Granted patents
- 514
- Published applications
- 356
- Assignees
- 324
- Inventors
- 1,050
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 12 | 0 |
| 1977 | 11 | 0 |
| 1978 | 11 | 0 |
| 1979 | 9 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 5 | 0 |
| 1983 | 7 | 0 |
| 1984 | 2 | 0 |
| 1985 | 10 | 0 |
| 1986 | 8 | 0 |
| 1987 | 8 | 0 |
| 1988 | 9 | 0 |
| 1989 | 8 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 2 | 0 |
| 1993 | 4 | 0 |
| 1994 | 13 | 0 |
| 1995 | 10 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 7 | 1 |
| 2002 | 12 | 8 |
| 2003 | 8 | 9 |
| 2004 | 9 | 7 |
| 2005 | 6 | 9 |
| 2006 | 10 | 11 |
| 2007 | 9 | 5 |
| 2008 | 8 | 12 |
| 2009 | 5 | 8 |
| 2010 | 6 | 13 |
| 2011 | 11 | 6 |
| 2012 | 7 | 7 |
| 2013 | 7 | 14 |
| 2014 | 10 | 16 |
| 2015 | 6 | 11 |
| 2016 | 17 | 28 |
| 2017 | 27 | 25 |
| 2018 | 21 | 28 |
| 2019 | 39 | 29 |
| 2020 | 31 | 17 |
| 2021 | 15 | 11 |
| 2022 | 12 | 23 |
| 2023 | 11 | 19 |
| 2024 | 26 | 15 |
| 2025 | 17 | 10 |
| 2026 | 5 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Wireless circuitry with low-noise peak detection7 Jul 2026US 12,674,825 B2Apple Inc.
- Method for determining a motor type of an electric motor and motor control apparatus2 Jun 2026US 12,647,056 B2Danfoss Power Electronics A/S
- Peak detecting circuiit for an input voltage and associated method26 May 2026US 12,638,479 B2Chengdu Monolithic Power Systems Co., Ltd.
- Detection circuit and related electronic apparatus14 Apr 2026US 12,601,773 B2Shenzhen Goodix Technology Co., Ltd.
- Prediction method for crosstalk spike in half-bridge of current source type inverter with silicon carbide devices17 Mar 2026US 12,580,497 B2Southeast University
- Peak hold device, impedance measurement device, metal deposition detection device, and battery internal temperature estimation device8 Oct 2026US 2026/0309755 A1Kabushiki Kaisha Toyota Chuo Kenkyusho
- Enhanced motor identification and control based on current characteristic response8 Oct 2026US 2026/0309781 A1Tesla, Inc.
- Adaptive characterization process for induction cooktop system27 Aug 2026US 2026/0251684 A1Whirlpool Corporation
- Normalization circuit and related electronic system20 Aug 2026US 2026/0246436 A1STMicroelectronics International N. V.
- Method for detecting partial discharges in an insulator of an electrical conductor30 Jul 2026US 2026/0219309 A1Schneider Electric Industries SAS
Most cited
By later US patents
- Dynamic measurements of pulse peak value94US 9,304,154 B1Google Inc. · 2016
- Revenue grade meter with high-speed transient detection89US 6,636,030 B1Electro Industries/Gauge Technologies · 2003
- Apparatus for automatically detecting values of periodically time varying signals80US 4,069,452 ADana Laboratories, Inc. · 1978
- Line voltage monitor system49US 4,558,275 AThe Superior Electric Company · 1985
- Power brown-out detector41US 4,031,463 AControl Data Corporation · 1977