G08B 21/185
Electrical failure alarms
Official title: {Electrical failure alarms}
G08B21/185 (Electrical failure alarms) appears on 408 US grants and 430 published applications in this corpus.
Search patents in G08B- Granted patents
- 408
- Published applications
- 430
- Assignees
- 303
- Inventors
- 986
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 4 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 4 | 0 |
| 1991 | 3 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 3 |
| 2004 | 2 | 2 |
| 2005 | 3 | 3 |
| 2006 | 1 | 0 |
| 2007 | 1 | 2 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 8 |
| 2012 | 3 | 0 |
| 2013 | 5 | 10 |
| 2014 | 5 | 12 |
| 2015 | 12 | 21 |
| 2016 | 11 | 22 |
| 2017 | 27 | 30 |
| 2018 | 24 | 38 |
| 2019 | 43 | 26 |
| 2020 | 36 | 28 |
| 2021 | 30 | 36 |
| 2022 | 33 | 47 |
| 2023 | 35 | 29 |
| 2024 | 32 | 33 |
| 2025 | 25 | 36 |
| 2026 | 23 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods for ambient and internal monitoring22 Sep 2026US 12,742,763 B1Ideal Sciences, Inc.
- Asset management and IOT device for refrigerated appliances22 Sep 2026US 12,745,124 B2True Manufacturing Co., Inc.
- Electromotive force (EMF) monitoring for an electrical submersible pump (ESP) with permanent magnet motor (PMM)1 Sep 2026US 12,724,074 B2Halliburton Energy Services.Inc.
- Apparatus for detecting grid-connected optimization of distributed photovoltaic power stations14 Jul 2026US 12,683,402 B1China Railway Seventh Bureau Group Co., Ltd.
- Automatic state of charge management system for lithium-ion batteries14 Jul 2026US 12,683,414 B1C&C Power, Inc.
- Detection of damage to components within an electrolyzer stack during operation8 Oct 2026US 2026/0308789 A1Fourier Earth, Inc.
- System and method for intelligent diagnostics and monitoring for a battery energy storage system1 Oct 2026US 2026/0299026 A1Fluence Energy, LLC
- Trailer lighting monitoring, inspection, diagnostic, and compliance system24 Sep 2026US 2026/0285226 A1
- Load control system responsive to sensors and mobile devices24 Sep 2026US 2026/0288106 A1Lutron Technology Company LLC
- Battery-pack diagnostic system for vehicles24 Sep 2026US 2026/0290922 A1POEN Co., Ltd.
Most cited
By later US patents
- Battery capacity indicator282US 5,032,825 AMotorola, Inc. · 1991
- Systems and methods for automatically generating an escape route243US 9,898,912 B1State Farm Mutual Automobile Insurance Company · 2018
- Process for remote grounding, transmission sensing, and temperature monitoring device228US 8,160,825 B12012
- Pump integrity detection, monitoring and alarm generation171US 10,317,875 B2BJ Services Company · 2019
- Interrupting low battery indicator147US 5,140,310 AMotorola, Inc. · 1992