H01M 4/68
For use in lead-acid accumulators
Official title: for use in lead-acid accumulators
H01M4/68 (For use in lead-acid accumulators) appears on 290 US grants and 271 published applications in this corpus.
Search patents in H01M- Granted patents
- 290
- Published applications
- 271
- Assignees
- 157
- Inventors
- 583
- Latest grant
- 3 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 6 | 0 |
| 1978 | 11 | 0 |
| 1979 | 9 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 8 | 0 |
| 1983 | 3 | 0 |
| 1984 | 8 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 3 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 7 | 0 |
| 1994 | 7 | 0 |
| 1995 | 2 | 0 |
| 1996 | 5 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 3 |
| 2002 | 9 | 10 |
| 2003 | 9 | 9 |
| 2004 | 6 | 10 |
| 2005 | 5 | 15 |
| 2006 | 3 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 6 |
| 2009 | 3 | 16 |
| 2010 | 3 | 13 |
| 2011 | 4 | 11 |
| 2012 | 2 | 8 |
| 2013 | 8 | 16 |
| 2014 | 4 | 9 |
| 2015 | 8 | 9 |
| 2016 | 6 | 9 |
| 2017 | 13 | 12 |
| 2018 | 9 | 15 |
| 2019 | 10 | 11 |
| 2020 | 9 | 12 |
| 2021 | 7 | 11 |
| 2022 | 7 | 9 |
| 2023 | 8 | 17 |
| 2024 | 6 | 24 |
| 2025 | 5 | 8 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Carbon fiber electrode with enhanced active material and lead acid battery having same3 Feb 2026US 12,542,283 B2CPS Technology Holdings LLC
- Battery electrode continuous casting shoe, machine and method9 Dec 2025US 12,494,475 B2Wirtz Manufacturing Company, Inc.
- Liquid-type lead storage battery4 Nov 2025US 12,463,257 B2The Furukawa Battery Co., Ltd.
- Battery grid21 Oct 2025US 12,451,493 B2CPS Technology Holdings LLC
- Separators for enhanced flooded batteries, batteries, and related methods12 Aug 2025US 12,388,155 B2Daramic, LLC
- Laser cutting metal battery components for battery manufacture11 Jun 2026US 2026/0158544 A1Wirtz Manufacturing Company, Inc.
- Battery electrode continuous casting shoe, machine and method26 Feb 2026US 2026/0058121 A1Wirtz Manufacturing Company, Inc.
- Titanium dioxide in flooded deep cycle lead-acid batteries19 Feb 2026US 2026/0051505 A1Trojan Battery Company
- Control of Lead Acid Paste Transference Through Use of Ultrasonics for Viscosity Regulation11 Dec 2025US 2025/0379204 A1Tbs Engineering Limited
- Multitubular gauntlet with overlapping lateral edges27 Nov 2025US 2025/0364572 A1Amer-Sil S.A.
Most cited
By later US patents
- Tin-clad substrates for use as current collectors, batteries comprised thereof and methods for preparing same115US 6,582,482 B2GP Batteries International Limited · 2003
- Battery plate containing filler with conductive coating64US 4,510,219 ACalifornia Institute of Technology · 1985
- Electrodes containing conductive metal oxides62US 5,017,446 AGlobe-Union Inc. · 1991
- Battery end connector57US 5,198,313 ABolder Battery, Inc. · 1993
- Electrodies containing a conductive metal oxide52US 5,045,170 AGlobe-Union Inc. · 1991