H02J 3/001
Arrangements for handling faults or abnormalities
Official title: Arrangements for handling faults or abnormalities, e.g. emergencies or contingencies
H02J3/001 (Arrangements for handling faults or abnormalities) appears on 1,627 US grants and 2,251 published applications in this corpus.
Search patents in H02J- Granted patents
- 1,627
- Published applications
- 2,251
- Assignees
- 896
- Inventors
- 5,349
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 3 | 0 |
| 1983 | 2 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 0 | 0 |
| 1993 | 4 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 10 | 0 |
| 1998 | 5 | 0 |
| 1999 | 6 | 0 |
| 2000 | 4 | 0 |
| 2001 | 5 | 2 |
| 2002 | 4 | 5 |
| 2003 | 8 | 22 |
| 2004 | 11 | 20 |
| 2005 | 13 | 15 |
| 2006 | 21 | 4 |
| 2007 | 8 | 12 |
| 2008 | 6 | 9 |
| 2009 | 7 | 20 |
| 2010 | 8 | 17 |
| 2011 | 20 | 21 |
| 2012 | 18 | 30 |
| 2013 | 14 | 60 |
| 2014 | 19 | 60 |
| 2015 | 33 | 67 |
| 2016 | 39 | 56 |
| 2017 | 61 | 62 |
| 2018 | 52 | 65 |
| 2019 | 65 | 85 |
| 2020 | 95 | 146 |
| 2021 | 119 | 182 |
| 2022 | 170 | 248 |
| 2023 | 164 | 216 |
| 2024 | 217 | 223 |
| 2025 | 218 | 290 |
| 2026 | 171 | 314 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for utilizing electricity monitoring devices to mitigate or prevent structural damage6 Oct 2026US 12,756,173 B2State Farm Mutual Automobile Insurance Company
- System and method for enhancing power flow analysis convergence6 Oct 2026US 12,756,188 B2Siemens Aktiengesellschaft
- Power supply system and conversion method6 Oct 2026US 12,756,189 B2Huawei Digital Power Technologies Co., Ltd.
- Multi-terminal flexible direct-current adaptive grid-forming control system, method, device, and medium6 Oct 2026US 12,756,202 B2Tsinghua University
- Uninterruptible power system, and power supply method and power supply system thereof6 Oct 2026US 12,756,223 B2Huawei Digital Power Technologies Co., Ltd.
- Systems and methods for detecting intermittent loose connection in battery energy storage systems8 Oct 2026US 2026/0309805 A1LG Energy Solution, Ltd.
- Systems and methods for utilizing electricity monitoring devices to mitigate or prevent structural damage8 Oct 2026US 2026/0312395 A1State Farm Mutual Automobile Insurance Company
- Energy storage systems and methods for predictive health monitoring and fault detection for a power conversion system8 Oct 2026US 2026/0312404 A1LG Energy Solution, Ltd.
- Tripping energy loads during under-frequency events based on rate of change of frequency8 Oct 2026US 2026/0312405 A1Xcel Energy
- Method for avoiding a power failure in an electrical grid8 Oct 2026US 2026/0312408 A1Fronius International GmbH
Most cited
By later US patents
- Circuit arrangement for attenuation of power oscillations in networks292US 4,292,580 ASiemens Aktiengesellschaft · 1981
- Integrated protection, monitoring, and control system252US 7,747,356 B2General Electric Company · 2010
- Method for power distribution system components identification, characterization and rating167US 6,909,942 B2General Electric Company · 2005
- Electrical power distribution control methods, electrical energy demand monitoring methods, and power management devices151US 7,149,605 B2Battelle Memorial Institute · 2006
- Variable speed distributed drive train wind turbine system147US 7,042,110 B2Clipper Windpower Technology, Inc. · 2006