H01M 10/4228
Leak testing of cells or batteries
Official title: {Leak testing of cells or batteries}
H01M10/4228 (Leak testing of cells or batteries) appears on 180 US grants and 284 published applications in this corpus.
Search patents in H01M- Granted patents
- 180
- Published applications
- 284
- Assignees
- 150
- Inventors
- 790
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 0 |
| 2003 | 1 | 4 |
| 2004 | 1 | 1 |
| 2005 | 0 | 5 |
| 2006 | 1 | 4 |
| 2007 | 0 | 2 |
| 2008 | 3 | 3 |
| 2009 | 1 | 2 |
| 2010 | 3 | 2 |
| 2011 | 3 | 5 |
| 2012 | 2 | 5 |
| 2013 | 5 | 7 |
| 2014 | 2 | 11 |
| 2015 | 2 | 11 |
| 2016 | 7 | 5 |
| 2017 | 9 | 5 |
| 2018 | 7 | 14 |
| 2019 | 11 | 12 |
| 2020 | 11 | 9 |
| 2021 | 11 | 14 |
| 2022 | 7 | 15 |
| 2023 | 14 | 25 |
| 2024 | 15 | 36 |
| 2025 | 21 | 38 |
| 2026 | 16 | 48 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermal runaway detection system for batteries within enclosures28 Jul 2026US 12,695,125 B2Amphenol Thermometrics, Inc.
- Functionally testing a leak detection device for checking the sealing tightness of an inspection object filled with a liquid21 Jul 2026US 12,687,450 B2Inficon GmbH
- Method to automate gas leak detection in battery manufacturing using data from optical gas imaging system26 May 2026US 12,639,805 B2GM Global Technology Operations LLC
- Secondary battery internal pressure measurement method26 May 2026US 12,640,403 B2SK On Co., Ltd.
- Leak inspection apparatus and method for secondary battery cell19 May 2026US 12,631,515 B2Hana Technology Co., Ltd.
- Method and system for detecting gas in battery packs8 Oct 2026US 2026/0309571 A1Samsung SDI.Co., Ltd.
- Leak detection system for battery cells1 Oct 2026US 2026/0302377 A1GM Global Technology Operations LLC
- Self-maintained lead acid battery system and method1 Oct 2026US 2026/0302395 A1Saudi Arabian Oil Company
- Battery system with fire extinguishing pump24 Sep 2026US 2026/0284455 A1Samsung SDI.Co., Ltd.
- Battery module17 Sep 2026US 2026/0279961 A1Panasonic Intellectual Property Management Co., Ltd.
Most cited
By later US patents
- Battery leakage sensing system52US 5,824,883 ASamsung Display Devices Co., Ltd. · 1998
- Battery case leakage detector34US 5,399,445 AAER Energy Resources, Inc. · 1995
- Battery pack with leakage detection and current interrupting means32US 6,337,559 B12002
- Electrical device and battery pack for preventing polarity reversal of battery23US 7,768,236 B2Panasonic Corporation · 2010
- Nonaqueous battery construction22US 4,184,007 AUnion Carbide Corporation · 1980