H02J 7/52
For charge balancing
Official title: for charge balancing, e.g. equalisation of charge between batteries
H02J7/52 (For charge balancing) appears on 3,531 US grants and 4,705 published applications in this corpus.
Search patents in H02J- Granted patents
- 3,531
- Published applications
- 4,705
- Assignees
- 1,504
- Inventors
- 7,259
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 1 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 4 | 0 |
| 1996 | 21 | 0 |
| 1997 | 36 | 0 |
| 1998 | 35 | 0 |
| 1999 | 35 | 0 |
| 2000 | 35 | 0 |
| 2001 | 39 | 10 |
| 2002 | 32 | 16 |
| 2003 | 22 | 32 |
| 2004 | 30 | 51 |
| 2005 | 23 | 64 |
| 2006 | 27 | 75 |
| 2007 | 30 | 53 |
| 2008 | 37 | 87 |
| 2009 | 70 | 130 |
| 2010 | 72 | 142 |
| 2011 | 69 | 163 |
| 2012 | 118 | 225 |
| 2013 | 103 | 258 |
| 2014 | 125 | 270 |
| 2015 | 230 | 223 |
| 2016 | 209 | 231 |
| 2017 | 200 | 258 |
| 2018 | 221 | 238 |
| 2019 | 223 | 253 |
| 2020 | 237 | 280 |
| 2021 | 236 | 271 |
| 2022 | 224 | 317 |
| 2023 | 219 | 309 |
| 2024 | 219 | 309 |
| 2025 | 200 | 263 |
| 2026 | 119 | 177 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Battery balancing apparatus using piezoelectric transformers and related device6 Oct 2026US 12,754,249 B2Huawei Digital Power Technologies Co., Ltd.
- Electronic device with hybrid power source and method for hybrid power supply6 Oct 2026US 12,755,115 B2Getac Technology Corporation
- Portable jump starter and air compressor device6 Oct 2026US 12,756,187 B2The Noco Company
- Method for operating a switching arrangement6 Oct 2026US 12,756,206 B2Volvo Truck Corporation
- Battery management apparatus and operating method thereof6 Oct 2026US 12,756,207 B2LG Energy Solution, Ltd.
- Vehicle battery cell balancing8 Oct 2026US 2026/0307535 A1Ford Global Technologies, LLC
- Battery management system and operation method therefor8 Oct 2026US 2026/0309795 A1Hyundai Motor Company
- Wireless communication system and wireless communication method8 Oct 2026US 2026/0312152 A1Astemo, Ltd.
- Battery management device and battery balancing method thereby8 Oct 2026US 2026/0312153 A1LG Energy Solution, Ltd.
- Current distribution method and analog circuit1 Oct 2026US 2026/0302805 A1Pylon Technologies Co., Ltd.
Most cited
By later US patents
- Reinforced battery for a surgical instrument1,484US 9,931,118 B2Ethicon Endo-Surgery, Inc. · 2018
- Surgical instrument system comprising an inspection station1,419US 10,045,779 B2Ethicon, Inc. · 2018
- Surgical apparatus configured to assess whether a performance parameter of the surgical apparatus is within an acceptable performance band1,320US 10,180,463 B2Ethicon, Inc. · 2019
- Charging system that enables emergency resolutions for charging a battery1,313US 10,182,816 B2Ethicon, Inc. · 2019
- Surgical apparatus configured to track an end-of-life parameter1,278US 10,159,483 B2Ethicon, Inc. · 2018