H01M 4/685
Lead alloys
Official title: {Lead alloys}
H01M4/685 (Lead alloys) appears on 153 US grants and 137 published applications in this corpus.
Search patents in H01M- Granted patents
- 153
- Published applications
- 137
- Assignees
- 93
- Inventors
- 345
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 8 | 0 |
| 1979 | 6 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 5 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 4 | 0 |
| 2000 | 6 | 0 |
| 2001 | 3 | 1 |
| 2002 | 8 | 9 |
| 2003 | 7 | 6 |
| 2004 | 6 | 7 |
| 2005 | 2 | 14 |
| 2006 | 2 | 3 |
| 2007 | 1 | 2 |
| 2008 | 1 | 4 |
| 2009 | 2 | 7 |
| 2010 | 3 | 5 |
| 2011 | 3 | 4 |
| 2012 | 1 | 4 |
| 2013 | 3 | 4 |
| 2014 | 2 | 2 |
| 2015 | 3 | 5 |
| 2016 | 1 | 3 |
| 2017 | 6 | 4 |
| 2018 | 3 | 6 |
| 2019 | 6 | 5 |
| 2020 | 2 | 7 |
| 2021 | 1 | 4 |
| 2022 | 4 | 5 |
| 2023 | 3 | 10 |
| 2024 | 4 | 12 |
| 2025 | 3 | 1 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Metal oxides in lead-acid batteries12 Nov 2024US 12,142,767 B2Trojan Battery Company
- Device for the production of lead grid electrodes for lead acid batteries in a continuous casting process3 Sep 2024US 12,076,783 B2Engineering Office Dr. Nitsche Ltd.
- 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
- Bipolar Storage Battery9 Jan 2025US 2025/0015422 A1Furukawa Electric Co., Ltd.
- An Improved Battery Grid and Electrode Thereof Vehicle29 Aug 2024US 2024/0290989 A1ATOA Scientific Technologies Pvt. Ltd
Most cited
By later US patents
- Positive lead-acid battery grids and cells and batteries using such grids49US 5,958,625 AGNB Technologies, Inc. · 1999
- Battery and grid for positive electrode for lead storage batteries42US 4,107,407 AAktiebolaget Tudor · 1978
- Lead-acid battery having a grid base of a lead-calcium alloy and a layer of lead-antimony-stannum alloy roll-bonded to the grid base41US 4,906,540 AMatsushita Electric Industrial Co., Ltd. · 1990
- Battery grids and plates and lead-acid batteries made using such grids and plates41US 5,434,025 AGNB Battery Technologies Inc. · 1995
- Grid for use in lead acid batteries and process for producing same40US 4,939,051 AMatsushita Electric Industrial Co., Ltd. · 1990