H01M 4/56
Of lead
Official title: of lead
H01M4/56 (Of lead) appears on 225 US grants and 250 published applications in this corpus.
Search patents in H01M- Granted patents
- 225
- Published applications
- 250
- Assignees
- 140
- Inventors
- 540
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 6 | 0 |
| 1978 | 6 | 0 |
| 1979 | 4 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 6 | 0 |
| 1984 | 0 | 0 |
| 1985 | 2 | 0 |
| 1986 | 3 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 4 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 3 |
| 2002 | 1 | 2 |
| 2003 | 5 | 6 |
| 2004 | 2 | 4 |
| 2005 | 0 | 4 |
| 2006 | 3 | 12 |
| 2007 | 2 | 3 |
| 2008 | 1 | 7 |
| 2009 | 7 | 7 |
| 2010 | 1 | 10 |
| 2011 | 3 | 6 |
| 2012 | 7 | 6 |
| 2013 | 2 | 10 |
| 2014 | 5 | 20 |
| 2015 | 12 | 17 |
| 2016 | 13 | 18 |
| 2017 | 15 | 18 |
| 2018 | 14 | 8 |
| 2019 | 18 | 17 |
| 2020 | 4 | 14 |
| 2021 | 8 | 11 |
| 2022 | 7 | 14 |
| 2023 | 3 | 17 |
| 2024 | 9 | 7 |
| 2025 | 8 | 4 |
| 2026 | 7 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for direct oxide production29 Sep 2026US 12,747,511 B2Aqua Metals Inc.
- Multilayered anode and associated methods and systems2 Jun 2026US 12,646,723 B2Board of Regents, The University of Texas System
- Method of forming a composition and the composition formed therefrom12 May 2026US 12,626,905 B2
- Method for lead carbon compression moulding and applications thereof14 Apr 2026US 12,599,960 B2National Formosa University
- Lead-acid battery3 Mar 2026US 12,567,578 B2GS Yuasa International Ltd.
- Metal-carbon nanofiber composite electrodes for high performance lithium-ion and lead-acid batteries8 Oct 2026US 2026/0311992 A1The Curators of the University of Missouri
- Composite comprising conductive polymer and lignosulfonate, and electrode active materials and lead-acid battery comprising the same27 Aug 2026US 2026/0253899 A1Trojan Battery Company
- Electrochemical cells and methods of using thereof25 Jun 2026US 2026/0179990 A1Uchicago Argonne, LLC
- Active materials useful in balancing power and energy density of a battery assembly12 Mar 2026US 2026/0074182 A1Advanced Battery Concepts, LLC
- Titanium dioxide in flooded deep cycle lead-acid batteries19 Feb 2026US 2026/0051505 A1Trojan Battery Company
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
- Ionic gel electrolyte, energy storage devices, and methods of manufacture thereof72US 9,076,589 B2Imprint Energy, Inc. · 2015
- Electrodes containing conductive metal oxides62US 5,017,446 AGlobe-Union Inc. · 1991
- Electrically conductive, freestanding microporous polymer sheet46US 6,524,742 B1Amtek Research International LLC · 2003
- Carbon-lead blends for use in hybrid energy storage devices43US 10,522,836 B2BASF SE · 2019