H02J 7/04
Regulation of charging current or voltage
H02J7/04 (Regulation of charging current or voltage) appears on 2,109 US grants and 2,851 published applications in this corpus.
Search patents in H02J- Granted patents
- 2,109
- Published applications
- 2,851
- Assignees
- 963
- Inventors
- 5,046
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 6 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 2 |
| 2002 | 4 | 6 |
| 2003 | 6 | 6 |
| 2004 | 9 | 15 |
| 2005 | 10 | 20 |
| 2006 | 6 | 27 |
| 2007 | 14 | 22 |
| 2008 | 20 | 49 |
| 2009 | 25 | 41 |
| 2010 | 31 | 58 |
| 2011 | 31 | 90 |
| 2012 | 43 | 105 |
| 2013 | 59 | 167 |
| 2014 | 84 | 145 |
| 2015 | 126 | 162 |
| 2016 | 144 | 217 |
| 2017 | 152 | 222 |
| 2018 | 166 | 256 |
| 2019 | 264 | 209 |
| 2020 | 194 | 184 |
| 2021 | 148 | 189 |
| 2022 | 145 | 123 |
| 2023 | 120 | 153 |
| 2024 | 104 | 138 |
| 2025 | 90 | 145 |
| 2026 | 81 | 100 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vehicle and charging system6 Oct 2026US 12,752,661 B2Toyota Jidosha Kabushiki Kaisha
- Low voltage charging system for high voltage rechargeable energy storage system6 Oct 2026US 12,756,204 B2GM Global Technology Operations LLC
- Methods and systems for multi-phase AC generation using inverter6 Oct 2026US 12,756,205 B2Instagrid GmbH
- Power supply device6 Oct 2026US 12,756,216 B2Panasonic Energy Co., Ltd.
- Power battery charging method, motor control circuit, and vehicle29 Sep 2026US 12,749,912 B2BYD Company Limited
- Charge control device8 Oct 2026US 2026/0312416 A1Suzuki Motor Corporation
- Wireless Charger and Receiving Load of Backward Compatibility That Automatically Identifies Fast and Slow Charging8 Oct 2026US 2026/0312430 A1Pi Power Product(Shenzhen)Company Limited
- Power distribution and direct current charging1 Oct 2026US 2026/0296238 A1Amazon Technologies, Inc.
- Temperature-based control of battery charger1 Oct 2026US 2026/0302798 A1Intel Corporation
- Systems, apparatuses and methods for appliances with integrated energy storage1 Oct 2026US 2026/0302819 A1Impulse Labs, Inc.
Most cited
By later US patents
- Methods of charging battery packs for cordless power tool systems1,472US 7,656,131 B2Black & Decker Inc. · 2010
- Method and device for voltage detection and charging of electric battery826US 8,575,895 B2Rally Manufacturing, Inc. · 2013
- Autonomous robot auto-docking and energy management systems and methods436US 7,332,890 B2iRobot Corporation · 2008
- Electric charger and power supply device for portable terminal307US 7,183,748 B1Fujitsu Limited · 2007
- Apparatus and method for displaying capacity and charge/discharge state of battery in portable device298US 8,569,997 B2Samsung Electronics Co., Ltd. · 2013