H02H 7/00
Emergency protective circuit arrangements specially adapted for specific types of electric machines
Official title: Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
H02H7/00 (Emergency protective circuit arrangements specially adapted for specific types of electric machines) appears on 8,305 US grants and 7,476 published applications in this corpus.
Search patents in H02H- Granted patents
- 8,305
- Published applications
- 7,476
- Assignees
- 2,835
- Inventors
- 16,212
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 82 | 0 |
| 1977 | 103 | 0 |
| 1978 | 65 | 0 |
| 1979 | 46 | 0 |
| 1980 | 73 | 0 |
| 1981 | 67 | 0 |
| 1982 | 60 | 0 |
| 1983 | 59 | 0 |
| 1984 | 71 | 0 |
| 1985 | 66 | 0 |
| 1986 | 54 | 0 |
| 1987 | 97 | 0 |
| 1988 | 70 | 0 |
| 1989 | 88 | 0 |
| 1990 | 72 | 0 |
| 1991 | 55 | 0 |
| 1992 | 50 | 0 |
| 1993 | 69 | 0 |
| 1994 | 61 | 0 |
| 1995 | 74 | 0 |
| 1996 | 121 | 0 |
| 1997 | 110 | 0 |
| 1998 | 141 | 0 |
| 1999 | 122 | 0 |
| 2000 | 100 | 0 |
| 2001 | 114 | 24 |
| 2002 | 98 | 84 |
| 2003 | 98 | 141 |
| 2004 | 114 | 133 |
| 2005 | 93 | 128 |
| 2006 | 105 | 117 |
| 2007 | 106 | 171 |
| 2008 | 104 | 162 |
| 2009 | 131 | 156 |
| 2010 | 130 | 156 |
| 2011 | 131 | 162 |
| 2012 | 102 | 202 |
| 2013 | 170 | 315 |
| 2014 | 228 | 368 |
| 2015 | 256 | 431 |
| 2016 | 313 | 352 |
| 2017 | 375 | 396 |
| 2018 | 361 | 453 |
| 2019 | 487 | 517 |
| 2020 | 439 | 503 |
| 2021 | 508 | 454 |
| 2022 | 428 | 482 |
| 2023 | 409 | 415 |
| 2024 | 430 | 428 |
| 2025 | 359 | 411 |
| 2026 | 240 | 315 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02H 7/08Emergency protective circuit arrangements specially adapted for specific types of electric machines2,217
- H02H 7/10Emergency protective circuit arrangements specially adapted for specific types of electric machines1,876
- H02H 7/26Sectionalised protection of cable or line systems1,511
- H02H 7/18Emergency protective circuit arrangements specially adapted for specific types of electric machines705
- H02H 7/20Emergency protective circuit arrangements specially adapted for specific types of electric machines681
- H02H 7/22Emergency protective circuit arrangements specially adapted for specific types of electric machines658
- H02H 7/06Emergency protective circuit arrangements specially adapted for specific types of electric machines428
- H02H 7/04Emergency protective circuit arrangements specially adapted for specific types of electric machines324
All 15 subgroupsShow fewer
- H02H 7/16Emergency protective circuit arrangements specially adapted for specific types of electric machines175
- H02H 7/001Emergency protective circuit arrangements specially adapted for specific types of electric machines145
- H02H 7/008Emergency protective circuit arrangements specially adapted for specific types of electric machines79
- H02H 7/005Emergency protective circuit arrangements specially adapted for specific types of electric machines45
- H02H 7/003Emergency protective circuit arrangements specially adapted for specific types of electric machines38
- H02H 7/24Emergency protective circuit arrangements specially adapted for specific types of electric machines14
- H02H 7/006Emergency protective circuit arrangements specially adapted for specific types of electric machines5
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