H02H
Emergency protective circuit arrangements
Official title: EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS (indicating or signalling undesired working conditions G01R, e.g. G01R31/00, G08B; locating faults along lines G01R31/08; emergency protective devices H01H)
H02H (Emergency protective circuit arrangements) appears on 21,378 US grants and 18,880 published applications in this corpus.
Search patents in H02H- Granted patents
- 21,378
- Published applications
- 18,880
- Assignees
- 5,603
- Inventors
- 35,213
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 210 | 0 |
| 1977 | 231 | 0 |
| 1978 | 185 | 0 |
| 1979 | 129 | 0 |
| 1980 | 169 | 0 |
| 1981 | 162 | 0 |
| 1982 | 177 | 0 |
| 1983 | 135 | 0 |
| 1984 | 174 | 0 |
| 1985 | 164 | 0 |
| 1986 | 148 | 0 |
| 1987 | 224 | 0 |
| 1988 | 173 | 0 |
| 1989 | 259 | 0 |
| 1990 | 213 | 0 |
| 1991 | 163 | 0 |
| 1992 | 201 | 0 |
| 1993 | 218 | 0 |
| 1994 | 194 | 0 |
| 1995 | 202 | 0 |
| 1996 | 289 | 0 |
| 1997 | 275 | 0 |
| 1998 | 367 | 0 |
| 1999 | 353 | 0 |
| 2000 | 300 | 0 |
| 2001 | 272 | 61 |
| 2002 | 291 | 253 |
| 2003 | 310 | 364 |
| 2004 | 327 | 347 |
| 2005 | 236 | 338 |
| 2006 | 273 | 398 |
| 2007 | 282 | 446 |
| 2008 | 290 | 435 |
| 2009 | 330 | 426 |
| 2010 | 342 | 459 |
| 2011 | 361 | 428 |
| 2012 | 337 | 620 |
| 2013 | 480 | 887 |
| 2014 | 661 | 1047 |
| 2015 | 778 | 1076 |
| 2016 | 827 | 978 |
| 2017 | 965 | 930 |
| 2018 | 878 | 1088 |
| 2019 | 1162 | 1154 |
| 2020 | 1032 | 1192 |
| 2021 | 1174 | 1027 |
| 2022 | 1057 | 1080 |
| 2023 | 946 | 996 |
| 2024 | 972 | 1047 |
| 2025 | 856 | 961 |
| 2026 | 624 | 842 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Main groups
Granted patents with any code in the group
- H02H 3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired9,557
- H02H 7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines8,305
- H02H 9/00Emergency protective circuit arrangements for limiting excess current or voltage without disconnection6,614
- H02H 1/00Details of emergency protective circuit arrangements4,287
- H02H 5/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired1,652
- H02H 11/00Emergency protective circuit arrangements for preventing the switching-on in case an undesired903
- H02H 6/00Emergency protective circuit arrangements responsive to undesired changes from normal non-electric working285
- H02H 99/00Subject matter not provided for in other groups of this subclass0
Recent patents
- High voltage cable routing for electrified vehicle6 Oct 2026US 12,752,140 B2Oshkosh Corporation
- Monitoring device for a high-voltage onboard electrical system, and method for operating a monitoring device6 Oct 2026US 12,754,224 B2Infineon Technologies AG
- Self-test auto monitor ground fault circuit interrupter (GFCI) with power denial6 Oct 2026US 12,754,232 B2Hubbell Incorporated
- Display device having a short circuit protection part to output a shutdown signal6 Oct 2026US 12,755,687 B2Samsung Display Co., Ltd.
- Power line protection coordination schemes using pivotable multi-fuse assemblies6 Oct 2026US 12,755,920 B2Saudi Arabian Oil Company
- High voltage cable routing for electrified vehicle8 Oct 2026US 2026/0306888 A1Oshkosh Corporation
- Power distribution unit8 Oct 2026US 2026/0307610 A1Autonetworks Technologies, 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
- Over-voltage transient protection in electrical circuit8 Oct 2026US 2026/0312396 A1Cisco Technology, Inc.
- Vehicle battery protection device, and method for thermal management of same8 Oct 2026US 2026/0312397 A1Clarity Development LLC
Most cited
By later US patents
- Surgical generator and related method for mitigating overcurrent conditions1,564US 9,099,863 B2Covidien LP · 2015
- Multiple sensors with one sensor affecting a second sensor's output or interpretation1,559US 9,757,128 B2Ethicon, Inc. · 2017
- Multiple motor control for powered medical device1,555US 9,788,836 B2Ethicon, Inc. · 2017
- Surgical instrument control circuit having a safety processor1,553US 9,690,362 B2Ethicon, Inc. · 2017
- Adjunct with integrated sensors to quantify tissue compression1,540US 9,724,094 B2Ethicon, Inc. · 2017