H02J 7/14
Circuit arrangements for charging or discharging batteries or for supplying loads from
Official title: for charging batteries from dynamo-electric generators driven at varying speed, e.g. on vehicle
H02J7/14 (Circuit arrangements for charging or discharging batteries or for supplying loads from) appears on 3,581 US grants and 3,342 published applications in this corpus.
Search patents in H02J- Granted patents
- 3,581
- Published applications
- 3,342
- Assignees
- 1,133
- Inventors
- 6,613
- Latest grant
- 22 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 21 | 0 |
| 1977 | 16 | 0 |
| 1978 | 21 | 0 |
| 1979 | 15 | 0 |
| 1980 | 25 | 0 |
| 1981 | 29 | 0 |
| 1982 | 34 | 0 |
| 1983 | 31 | 0 |
| 1984 | 29 | 0 |
| 1985 | 23 | 0 |
| 1986 | 28 | 0 |
| 1987 | 36 | 0 |
| 1988 | 20 | 0 |
| 1989 | 23 | 0 |
| 1990 | 26 | 0 |
| 1991 | 34 | 0 |
| 1992 | 47 | 0 |
| 1993 | 43 | 0 |
| 1994 | 37 | 0 |
| 1995 | 27 | 0 |
| 1996 | 44 | 0 |
| 1997 | 52 | 0 |
| 1998 | 58 | 0 |
| 1999 | 48 | 0 |
| 2000 | 43 | 0 |
| 2001 | 56 | 19 |
| 2002 | 52 | 61 |
| 2003 | 61 | 62 |
| 2004 | 64 | 74 |
| 2005 | 41 | 69 |
| 2006 | 50 | 62 |
| 2007 | 51 | 90 |
| 2008 | 46 | 85 |
| 2009 | 60 | 88 |
| 2010 | 57 | 109 |
| 2011 | 80 | 81 |
| 2012 | 80 | 92 |
| 2013 | 64 | 156 |
| 2014 | 86 | 118 |
| 2015 | 117 | 140 |
| 2016 | 118 | 154 |
| 2017 | 139 | 178 |
| 2018 | 166 | 255 |
| 2019 | 180 | 278 |
| 2020 | 235 | 230 |
| 2021 | 233 | 216 |
| 2022 | 180 | 197 |
| 2023 | 183 | 165 |
| 2024 | 170 | 142 |
| 2025 | 129 | 124 |
| 2026 | 73 | 97 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02J 7/1423With multiple batteries1,049
- H02J 7/16Regulation of the charging current or voltage by variation of field685
- H02J 7/1438In combination with power supplies for loads other than batteries471
- H02J 7/1469Regulation of the charging current or voltage otherwise than by variation of459
- H02J 7/1446In response to parameters of a vehicle386
- H02J 7/1415With a generator driven by a prime mover other than the motor372
- H02J 7/143With multiple generators159
- H02J 7/1407On vehicles not being driven by a motor60
Recent patents
- Battery power management apparatus and method22 Sep 2026US 12,741,603 B2
- Charging system22 Sep 2026US 12,744,393 B2Toyota Jidosha Kabushiki Kaisha
- System and method for delivering electric power22 Sep 2026US 12,744,406 B2
- Circuit combining functions of charging and activating motorcycle screen projection without an additional wearable device15 Sep 2026US 12,735,137 B1
- Battery self-heating device and method, and vehicle8 Sep 2026US 12,731,825 B2BYD Company Limited
- Charge control device8 Oct 2026US 2026/0312416 A1Suzuki Motor Corporation
- Power management device1 Oct 2026US 2026/0296264 A1Hino Motors, Ltd.
- Battery module for an electrically-driven aircraft, method for manufacturing a battery module and electrically-driven aircraft powered by a battery module1 Oct 2026US 2026/0296265 A1H55 SA
- Electric apparatus1 Oct 2026US 2026/0302799 A1Honda Motor Co., Ltd.
- Automobile battery remote charging and maintenance system24 Sep 2026US 2026/0291258 A1
Most cited
By later US patents
- Electrical system for a motor vehicle, including at least one supercapacitor1,516US 5,260,637 AMagneti Marelli S.p.A. · 1993
- Power management system320US 5,712,795 AAlaris Medical Systems, Inc. · 1998
- Linear motion electric power generator301US 5,347,186 AKAB Laboratories Inc. · 1994
- Apparatus for monitoring the state of charge of a battery272US 4,968,941 A1990
- Energy management system for automotive vehicle271US 6,331,762 B1Midtronics, Inc. · 2001