H02J 7/40
Circuit arrangements for charging or discharging batteries or for supplying loads from
Official title: characterised by the exchange of charge or discharge related data
H02J7/40 (Circuit arrangements for charging or discharging batteries or for supplying loads from) appears on 6,943 US grants and 9,210 published applications in this corpus.
Search patents in H02J- Granted patents
- 6,943
- Published applications
- 9,210
- Assignees
- 2,085
- Inventors
- 13,238
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 6 | 0 |
| 1992 | 9 | 0 |
| 1993 | 16 | 0 |
| 1994 | 17 | 0 |
| 1995 | 25 | 0 |
| 1996 | 37 | 0 |
| 1997 | 46 | 0 |
| 1998 | 40 | 0 |
| 1999 | 52 | 0 |
| 2000 | 49 | 0 |
| 2001 | 42 | 9 |
| 2002 | 16 | 16 |
| 2003 | 17 | 27 |
| 2004 | 20 | 27 |
| 2005 | 19 | 49 |
| 2006 | 22 | 63 |
| 2007 | 19 | 69 |
| 2008 | 25 | 65 |
| 2009 | 41 | 80 |
| 2010 | 58 | 122 |
| 2011 | 62 | 164 |
| 2012 | 77 | 242 |
| 2013 | 104 | 330 |
| 2014 | 177 | 464 |
| 2015 | 290 | 495 |
| 2016 | 379 | 618 |
| 2017 | 474 | 702 |
| 2018 | 602 | 650 |
| 2019 | 732 | 584 |
| 2020 | 534 | 703 |
| 2021 | 529 | 663 |
| 2022 | 558 | 724 |
| 2023 | 513 | 763 |
| 2024 | 555 | 634 |
| 2025 | 509 | 582 |
| 2026 | 251 | 365 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H02J 7/42With electronic devices having internal batteries3,620
- H02J 7/44Between battery management systems and power sources1,582
- H02J 7/47Arrangements for checking compatibility or authentication between one component1,252
- H02J 7/443Using passive battery identification means753
- H02J 7/45Between battery management systems and external servers18
- H02J 7/46Leader-follower arrangements14
Recent patents
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- Electronic device with hybrid power source and method for hybrid power supply6 Oct 2026US 12,755,115 B2Getac Technology Corporation
- Charging device and charging system6 Oct 2026US 12,756,210 B2Nanjing Chervon Industry Co., Ltd.
- Charging control method and charging control system6 Oct 2026US 12,756,222 B2Nissan Motor Co., Ltd.
- Wireless power distribution system6 Oct 2026US 12,756,239 B2Wi-Charge Ltd.
- An Assembly Comprising a Portable Charging Device and an Aerosol Generating Device, and a Method of Controlling the Same8 Oct 2026US 2026/0305727 A1JT International SA
- Methods and systems for charging and monitoring electronic devices in confinement institutions8 Oct 2026US 2026/0310778 A1Confinement Telephony Technology, LLC
- Method and Devices for Operating Deep Discharge-Proof Battery Packs for Electric Processing Tools8 Oct 2026US 2026/0312159 A1Andreas Stihl AG & CO.KG
- Operating Scheme for Power Tool Wireless Mesh Network8 Oct 2026US 2026/0313024 A1Milwaukee Electric Tool Corporation
- Power distribution and communications for electric vehicle1 Oct 2026US 2026/0296252 A1Cisco Technology, Inc.
Most cited
By later US patents
- Cordless power system1,824US 7,688,028 B2Black & Decker Inc. · 2010
- Battery charger capable of evaluating battery charge state based on the charging history of the battery1,529US 6,331,761 B1Stryker Corporation · 2001
- Battery pack including input and output waveform modification capability1,522US 6,324,339 B1Eveready Battery Company, Inc. · 2001
- Reinforced battery for a surgical instrument1,484US 9,931,118 B2Ethicon Endo-Surgery, Inc. · 2018
- Rechargeable battery pack and operating system1,445US 7,941,865 B2Black & Decker Inc. · 2011