H01M 50/333
Spring-loaded vent valves
H01M50/333 (Spring-loaded vent valves) appears on 124 US grants and 224 published applications in this corpus.
Search patents in H01M- Granted patents
- 124
- Published applications
- 224
- Assignees
- 116
- Inventors
- 572
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 2 | 4 |
| 2003 | 3 | 1 |
| 2004 | 1 | 0 |
| 2005 | 2 | 3 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 3 |
| 2009 | 1 | 2 |
| 2010 | 1 | 1 |
| 2011 | 1 | 2 |
| 2012 | 0 | 2 |
| 2013 | 1 | 5 |
| 2014 | 1 | 3 |
| 2015 | 4 | 3 |
| 2016 | 3 | 5 |
| 2017 | 1 | 8 |
| 2018 | 4 | 5 |
| 2019 | 5 | 3 |
| 2020 | 5 | 5 |
| 2021 | 4 | 11 |
| 2022 | 6 | 17 |
| 2023 | 8 | 29 |
| 2024 | 11 | 36 |
| 2025 | 20 | 36 |
| 2026 | 20 | 40 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Battery cell with reversible vent valve6 Oct 2026US 12,756,055 B2GM Global Technology Operations LLC
- Emergency degassing device6 Oct 2026US 12,756,059 B2Bodo Konzelmann KG
- Vehicle having automatic vent gas discharge doors6 Oct 2026US 12,756,061 B2Fca US LLC
- Battery pack including valve structure having valve member biased toward inner surface of pack case by biasing member29 Sep 2026US 12,749,762 B2Prime Planet Energy & Solutions, Inc.
- Valve structure and power storage device15 Sep 2026US 12,738,591 B2Dai Nippon Printing Co.Ltd.
- Secondary Battery and Device Including the Same1 Oct 2026US 2026/0302504 A1LG Energy Solution, Ltd.
- On vehicle moisture purge system for battery enclosures24 Sep 2026US 2026/0290990 A1GM Global Technology Operations LLC
- Off vehicle moisture purge system for battery enclosures24 Sep 2026US 2026/0290991 A1GM Global Technology Operations LLC
- Relief valve24 Sep 2026US 2026/0290992 A1Pacific Industrial Co., Ltd.
- Power supply equipment24 Sep 2026US 2026/0290993 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Orthopedic drive assembly1,581US 4,728,876 AMinnesota Mining and Manufacturing Company · 1988
- Battery casing for armored vehicles45US 6,372,378 B1The United States of America as represented by the Secretary of the Army · 2002
- Zinc-air battery control valve43US 6,955,187 B1TiNi Alloy Company · 2005
- Resealable safety vent and a sealed alkaline rechargeable battery provided with the safety vent39US 5,554,455 AMatsushita Electric Industrial Co., Ltd. · 1996
- Vent valve for an amphibious equipment having a battery housing31US 5,538,807 ANikon Corporation · 1996