H02J 3/00
Circuit arrangements for ac mains or ac distribution networks
Official title: Circuit arrangements for AC mains or AC distribution networks
H02J3/00 (Circuit arrangements for ac mains or ac distribution networks) appears on 17,646 US grants and 22,121 published applications in this corpus.
Search patents in H02J- Granted patents
- 17,646
- Published applications
- 22,121
- Assignees
- 5,266
- Inventors
- 33,218
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 37 | 0 |
| 1977 | 41 | 0 |
| 1978 | 34 | 0 |
| 1979 | 36 | 0 |
| 1980 | 30 | 0 |
| 1981 | 38 | 0 |
| 1982 | 56 | 0 |
| 1983 | 44 | 0 |
| 1984 | 45 | 0 |
| 1985 | 32 | 0 |
| 1986 | 33 | 0 |
| 1987 | 46 | 0 |
| 1988 | 37 | 0 |
| 1989 | 42 | 0 |
| 1990 | 32 | 0 |
| 1991 | 23 | 0 |
| 1992 | 32 | 0 |
| 1993 | 47 | 0 |
| 1994 | 62 | 0 |
| 1995 | 69 | 0 |
| 1996 | 70 | 0 |
| 1997 | 93 | 0 |
| 1998 | 90 | 0 |
| 1999 | 85 | 0 |
| 2000 | 79 | 0 |
| 2001 | 81 | 24 |
| 2002 | 87 | 124 |
| 2003 | 98 | 193 |
| 2004 | 100 | 209 |
| 2005 | 115 | 193 |
| 2006 | 149 | 155 |
| 2007 | 123 | 210 |
| 2008 | 147 | 245 |
| 2009 | 141 | 330 |
| 2010 | 196 | 489 |
| 2011 | 261 | 742 |
| 2012 | 377 | 998 |
| 2013 | 536 | 1164 |
| 2014 | 655 | 1132 |
| 2015 | 748 | 1161 |
| 2016 | 885 | 1234 |
| 2017 | 1046 | 1173 |
| 2018 | 1078 | 1169 |
| 2019 | 1323 | 1205 |
| 2020 | 1162 | 1410 |
| 2021 | 1241 | 1294 |
| 2022 | 1141 | 1483 |
| 2023 | 1152 | 1577 |
| 2024 | 1332 | 1526 |
| 2025 | 1347 | 1493 |
| 2026 | 892 | 1188 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02J 3/38Arrangements for feeding a single network from two or more generators or8,694
- H02J 3/28Arrangements for balancing of the load in networks by storage of energy3,826
- H02J 3/12Arrangements for adjusting voltage in ac networks by changing a characteristic of3,196
- H02J 3/18Arrangements for adjusting, eliminating or compensating reactive power in networks1,902
- H02J 3/001Arrangements for handling faults or abnormalities1,627
- H02J 3/003Load forecast1,269
- H02J 3/007Arrangements for selectively connecting one or more loads to one or more882
- H02J 3/36Arrangements for transfer of electric power between ac networks via high-voltage dc815
All 19 subgroupsShow fewer
- H02J 3/004Generation forecast657
- H02J 3/04Arrangements for connecting networks of the same frequency but supplied from different628
- H02J 3/01Arrangements for reducing harmonics or ripples596
- H02J 3/008Circuit arrangements for power supply or distribution technologies responsive to energy trading583
- H02J 3/17Demand-responsive operation of ac power transmission or distribution networks532
- H02J 3/26Arrangements for eliminating or reducing asymmetry in polyphase networks305
- H02J 3/02Circuit arrangements for ac mains or ac distribution networks: using a single226
- H02J 3/34Arrangements for transfer of electric power between networks of substantially different frequency124
- H02J 3/11Arrangements for adjusting frequency in ac networks54
- H02J 3/002Flicker reduction40
- H02J 3/10Current-controlled supply systems37
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