H01M 50/541
For lead-acid accumulators
Official title: for lead-acid accumulators
H01M50/541 (For lead-acid accumulators) appears on 106 US grants and 71 published applications in this corpus.
Search patents in H01M- Granted patents
- 106
- Published applications
- 71
- Assignees
- 65
- Inventors
- 236
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 6 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 4 |
| 2003 | 1 | 1 |
| 2004 | 2 | 2 |
| 2005 | 0 | 4 |
| 2006 | 1 | 1 |
| 2007 | 1 | 6 |
| 2008 | 1 | 0 |
| 2009 | 3 | 2 |
| 2010 | 0 | 4 |
| 2011 | 3 | 1 |
| 2012 | 1 | 4 |
| 2013 | 3 | 1 |
| 2014 | 2 | 2 |
| 2015 | 0 | 5 |
| 2016 | 4 | 4 |
| 2017 | 2 | 3 |
| 2018 | 2 | 3 |
| 2019 | 3 | 2 |
| 2020 | 3 | 3 |
| 2021 | 3 | 1 |
| 2022 | 2 | 2 |
| 2023 | 1 | 5 |
| 2024 | 2 | 4 |
| 2025 | 1 | 7 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Electrode lead made of dissimilar metals and method of manufacturing the same16 Jun 2026US 12,658,536 B2LG Energy Solution, Ltd.
- Liquid-type lead storage battery4 Nov 2025US 12,463,257 B2The Furukawa Battery Co., Ltd.
- Battery terminal bushing and lead acid battery11 Jun 2024US 12,009,549 B2CPS Technology Holdings LLC
- Method for producing a battery and battery13 Feb 2024US 11,901,563 B2Clarios Germany GmbH & Co. KG
- Rechargeable electrical storage devices26 Dec 2023US 11,855,293 B2Lukatit Investments 12 (Pty) Ltd
- Methods for smart battery assembly23 Oct 2025US 2025/0329889 A1
- Lug align head clamp1 May 2025US 2025/0140888 A1Tbs Engineering Limited
- Intelligent lead-acid battery module and method of operating the same16 Jan 2025US 2025/0023122 A1
- Intelligent lead-acid battery module and method of operating the same16 Jan 2025US 2025/0023123 A1
- Intelligent lead-acid battery module and method of operating the same16 Jan 2025US 2025/0023124 A1
Most cited
By later US patents
- Modular, multicell lead-acid batteries48US 5,256,502 AGNB Incorporated · 1993
- Ultra-thin plate electrochemical cell43US 5,047,300 ABolder Battery, Inc. · 1991
- Multicell recombinant lead-acid battery with vibration resistant intercell connector41US 4,780,379 AGates Energy Products, Inc. · 1988
- Method for the manufacture of lead-acid batteries and an associated apparatus and associated lead-acid battery40US 4,982,482 ACaltec International, Inc. · 1991
- Bipolar battery assembly40US 8,357,469 B2Advanced Battery Concepts, LLC · 2013