H01M 50/668
Means for preventing spilling of liquid or electrolyte
Official title: {Means for preventing spilling of liquid or electrolyte, e.g. when the battery is tilted or turned over}
H01M50/668 (Means for preventing spilling of liquid or electrolyte) appears on 68 US grants and 97 published applications in this corpus.
Search patents in H01M- Granted patents
- 68
- Published applications
- 97
- Assignees
- 68
- Inventors
- 274
- Latest grant
- 20 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 2 |
| 2004 | 2 | 0 |
| 2005 | 1 | 1 |
| 2006 | 0 | 1 |
| 2007 | 0 | 2 |
| 2008 | 0 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 3 | 3 |
| 2015 | 3 | 1 |
| 2016 | 1 | 4 |
| 2017 | 1 | 5 |
| 2018 | 5 | 3 |
| 2019 | 2 | 3 |
| 2020 | 5 | 5 |
| 2021 | 4 | 7 |
| 2022 | 8 | 8 |
| 2023 | 2 | 9 |
| 2024 | 6 | 6 |
| 2025 | 7 | 13 |
| 2026 | 2 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Flat-shaped battery and method for manufacturing same20 Jan 2026US 12,531,318 B2Maxell, Ltd.
- Battery including insulation piece having drainage groove and electrical device including the same6 Jan 2026US 12,519,192 B2Contemporary Amperex Technology (Hong Kong) Limited
- End cover assembly, battery cell, battery pack and device23 Dec 2025US 12,506,203 B2Contemporary Amperex Technology (Hong Kong) Limited
- Battery and electric apparatus having same23 Dec 2025US 12,506,229 B2Ningde Amperex Technology Limited
- Packaging material for solid-state batteries and solid-state battery including the packaging material2 Dec 2025US 12,489,141 B2Toppan Inc.
- Battery Pack and Vehicle Including the Same1 Oct 2026US 2026/0302523 A1LG Energy Solution, Ltd.
- Battery cell and battery cell manufacturing method24 Sep 2026US 2026/0291041 A1SK On Co., Ltd.
- Lithium ion secondary battery and lithium ion battery pack10 Sep 2026US 2026/0269439 A1Vehicle Energy Japan Inc.
- Battery Pack and Vehicle Including the Same27 Aug 2026US 2026/0254043 A1LG Energy Solution, Ltd.
- Filling method, filling line and filling kit for filling containers with viscous fluids, particularly for filling batteries with electrolyte27 Aug 2026US 2026/0254074 A1I.M.A. Industria Macchine Automatiche S.P.A In Sigla Ima S.P.A.
Most cited
By later US patents
- Diffusion vent for a rechargeable metal-air cell78US 5,362,577 AAER Energy Resources, Inc. · 1994
- Flooded lead acid battery with roll-over capability53US 6,110,617 AExide Corporation · 2000
- Dual weld plug for an electrochemical cell25US 10,109,844 B2Greatbatch Ltd. · 2018
- Anti-spill device for electrolyte battery23US 4,348,466 AVarta Batteries Ltd. · 1982
- Lead accumulator17US 5,380,604 AAccumulatorenwerke Hoppecke Carl Zoellner & Sohn GmbH & Co. KG · 1995