H01M 6/42
Grouping of primary cells into batteries
Official title: Grouping of primary cells into batteries (H01M6/40 takes precedence)
H01M6/42 (Grouping of primary cells into batteries) appears on 1,037 US grants and 798 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,037
- Published applications
- 798
- Assignees
- 477
- Inventors
- 2,166
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 18 | 0 |
| 1978 | 22 | 0 |
| 1979 | 15 | 0 |
| 1980 | 16 | 0 |
| 1981 | 16 | 0 |
| 1982 | 12 | 0 |
| 1983 | 7 | 0 |
| 1984 | 11 | 0 |
| 1985 | 15 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 5 | 0 |
| 1989 | 8 | 0 |
| 1990 | 12 | 0 |
| 1991 | 9 | 0 |
| 1992 | 11 | 0 |
| 1993 | 17 | 0 |
| 1994 | 17 | 0 |
| 1995 | 29 | 0 |
| 1996 | 20 | 0 |
| 1997 | 25 | 0 |
| 1998 | 25 | 0 |
| 1999 | 30 | 0 |
| 2000 | 22 | 0 |
| 2001 | 38 | 12 |
| 2002 | 33 | 35 |
| 2003 | 38 | 52 |
| 2004 | 27 | 69 |
| 2005 | 19 | 49 |
| 2006 | 29 | 55 |
| 2007 | 28 | 35 |
| 2008 | 25 | 48 |
| 2009 | 34 | 44 |
| 2010 | 35 | 46 |
| 2011 | 41 | 55 |
| 2012 | 33 | 55 |
| 2013 | 41 | 51 |
| 2014 | 37 | 38 |
| 2015 | 42 | 29 |
| 2016 | 44 | 27 |
| 2017 | 24 | 16 |
| 2018 | 15 | 20 |
| 2019 | 14 | 12 |
| 2020 | 22 | 18 |
| 2021 | 10 | 6 |
| 2022 | 7 | 4 |
| 2023 | 8 | 8 |
| 2024 | 1 | 8 |
| 2025 | 3 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Battery management systems and methods9 Jun 2026US 12,651,755 B2The Boeing Company
- Reinforced bipolar battery assembly6 Jan 2026US 12,519,186 B2Advanced Battery Concepts, LLC
- High voltage cathode materials for non-aqueous ammonia based9 Dec 2025US 12,494,494 B2Maxpower, Inc.
- Button-type battery20 May 2025US 12,308,450 B2Guangdong Mic-Power New Energy Co., Ltd.
- Electric tool powered by a plurality of battery packs and adapter therefor1 Apr 2025US 12,266,956 B2Makita Corporation
- Liquid metal oxide composites as a source of electrochemical energy and uses thereof30 Apr 2026US 2026/0121081 A1Trustees of Boston University
- Biodegradable battery system with modular energy pods1 Jan 2026US 2026/0005261 A1Magvolts Energy, Inc.
- Method and apparatus for assembling energy storage pack, and energy storage pack20 Nov 2025US 2025/0357522 A1Rimac Technology LLC
- Battery pack4 Sep 2025US 2025/0279520 A1Samsung SDI.Co., Ltd.
- Pre-stacking mechanism for battery module and battery production line7 Aug 2025US 2025/0253471 A1Contemporary Amperex Technology (Hong Kong) Limited
Most cited
By later US patents
- Cordless power system1,824US 7,688,028 B2Black & Decker Inc. · 2010
- Terminal cover for a battery pack1,514US 5,200,280 ABlack & Decker Inc. · 1993
- Battery powered surgical tool with guide wire1,046US 8,974,932 B2Warsaw Orthopedic, Inc. · 2015
- Thermal deferred action battery with interconnecting, foldable electrodes1,018US 4,034,143 ACatalyst Research Corporation · 1977
- Battery device and electronic equipment employing the battery device as power source682US 5,626,979 ASony Corporation · 1997