H01M 10/121
Valve regulated lead acid batteries [vrla]
Official title: {Valve regulated lead acid batteries [VRLA]}
H01M10/121 (Valve regulated lead acid batteries [vrla]) appears on 91 US grants and 129 published applications in this corpus.
Search patents in H01M- Granted patents
- 91
- Published applications
- 129
- Assignees
- 77
- Inventors
- 268
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 5 | 1 |
| 2002 | 3 | 3 |
| 2003 | 6 | 5 |
| 2004 | 4 | 1 |
| 2005 | 2 | 4 |
| 2006 | 1 | 3 |
| 2007 | 0 | 5 |
| 2008 | 2 | 3 |
| 2009 | 2 | 3 |
| 2010 | 2 | 8 |
| 2011 | 2 | 5 |
| 2012 | 5 | 11 |
| 2013 | 2 | 6 |
| 2014 | 3 | 10 |
| 2015 | 6 | 3 |
| 2016 | 4 | 6 |
| 2017 | 5 | 4 |
| 2018 | 6 | 2 |
| 2019 | 5 | 7 |
| 2020 | 1 | 5 |
| 2021 | 2 | 10 |
| 2022 | 4 | 2 |
| 2023 | 3 | 7 |
| 2024 | 3 | 4 |
| 2025 | 2 | 5 |
| 2026 | 6 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Separator for lead acid batteries14 Apr 2026US 12,603,389 B2Entek Asia Inc
- Battery assembly, method of preparation, and thermal control thereof7 Apr 2026US 12,597,648 B2Advanced Battery Concepts, LLC
- Lead-acid battery24 Mar 2026US 12,586,821 B2GS Yuasa International Ltd.
- Lead acid electrochemical cells with pumped electrolytes and methods of making and using the same3 Mar 2026US 12,567,599 B2Uchicago Argonne, LLC
- Separator for lead acid battery24 Feb 2026US 12,562,433 B2Nippon Sheet Glass Co., Ltd.
- Improved flooded battery cells24 Sep 2026US 2026/0290924 A1Philadelphia Scientific LLC
- Electrochemical cells and methods of using thereof25 Jun 2026US 2026/0179990 A1Uchicago Argonne, LLC
- Embossed separators19 Mar 2026US 2026/0081303 A1Hollingsworth & Vose Company
- Separators for vrla batteries and methods relating thereto12 Mar 2026US 2026/0074368 A1Daramic, LLC
- Separator for lead acid battery using glass fiber and heat-fusible organic fiber12 Feb 2026US 2026/0045639 A1Entek Asia Inc
Most cited
By later US patents
- Selectable capacity fixed footprint lead-acid battery racking system with horizontal plates50US 6,475,659 B1C&D Charter Holdings, Inc. · 2002
- Optimised energy storage device having capacitor material on lead based negative electrode46US 9,666,860 B2Commonwealth Scientific and Industrial Research Organisation · 2017
- Multicell electric storage battery45US 6,007,937 ASociedad Espanola del Acumulador Tudor, S.A. · 1999
- Glass fiber separators for lead-acid batteries34US 6,495,286 B2Hollingsworth & Vose Company · 2002
- Sealant composition, cell and battery cover, and cell battery prepared therewith28US 5,709,967 AGNB Technologies, Inc. · 1998