G01R 19/0038
Circuits for comparing several input signals and for indicating the result of
Official title: {Circuits for comparing several input signals and for indicating the result of this comparison, e.g. equal, different, greater, smaller (comparing pulses or pulse trains according to amplitude)}
G01R19/0038 (Circuits for comparing several input signals and for indicating the result of) appears on 301 US grants and 268 published applications in this corpus.
Search patents in G01R- Granted patents
- 301
- Published applications
- 268
- Assignees
- 249
- Inventors
- 739
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 5 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 7 | 0 |
| 1981 | 9 | 0 |
| 1982 | 9 | 0 |
| 1983 | 3 | 0 |
| 1984 | 6 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 6 | 0 |
| 1990 | 5 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 0 | 0 |
| 1994 | 6 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 1 |
| 2010 | 2 | 2 |
| 2011 | 0 | 0 |
| 2012 | 3 | 1 |
| 2013 | 0 | 5 |
| 2014 | 3 | 13 |
| 2015 | 8 | 10 |
| 2016 | 6 | 5 |
| 2017 | 11 | 7 |
| 2018 | 10 | 11 |
| 2019 | 15 | 19 |
| 2020 | 9 | 22 |
| 2021 | 21 | 28 |
| 2022 | 21 | 16 |
| 2023 | 16 | 32 |
| 2024 | 31 | 38 |
| 2025 | 27 | 34 |
| 2026 | 15 | 21 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Voltage detecting circuit and information processing apparatus25 Aug 2026US 12,716,921 B2Fujitsu Limited
- Opto-emulator18 Aug 2026US 12,710,454 B2Texas Instruments Incorporated
- Method for processing a current transformer signal24 Sep 2026US 2026/0291210 A1Schneider Electric Industries SAS
- Voltage detector17 Sep 2026US 2026/0276678 A1eMemory Technology Inc.
- Voltage regulator with built-in auto test17 Sep 2026US 2026/0280430 A1
- Multi-Remote Circuit Breaker Finder3 Sep 2026US 2026/0259265 A1Klein Tools, Inc.
- Voltage detection device having trimming resistors and capable of determining resistance value of trimming resistors without additional terminals for monitoring internal circuit27 Aug 2026US 2026/0251685 A1Nisshinbo Micro Devices Inc.
Most cited
By later US patents
- Sensor fault detection by activity monitoring128US 4,337,516 AUnited Technologies Corporation · 1982
- Comparator with extended common-mode input voltage range67US 4,907,121 ASGS-Thomson Microelectronics S.A. · 1990
- Triple comparator circuit43US 5,115,151 AWestern Digital Corporation · 1992
- CMOS voltage comparator with internal hysteresis34US 4,110,641 AHoneywell Inc. · 1978
- High speed charge balancing comparator29US 4,547,683 AIntersil Corporation · 1985