H01M 8/04246
Short circuiting means for defective fuel cells
Official title: {Short circuiting means for defective fuel cells (detection of defective fuel cells H01M8/04664, methods for shunting fuel cells H01M8/04955)}
H01M8/04246 (Short circuiting means for defective fuel cells) appears on 62 US grants and 83 published applications in this corpus.
Search patents in H01M- Granted patents
- 62
- Published applications
- 83
- Assignees
- 48
- Inventors
- 206
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 1 |
| 2003 | 0 | 3 |
| 2004 | 2 | 7 |
| 2005 | 1 | 10 |
| 2006 | 2 | 6 |
| 2007 | 4 | 9 |
| 2008 | 7 | 9 |
| 2009 | 4 | 3 |
| 2010 | 3 | 6 |
| 2011 | 7 | 6 |
| 2012 | 4 | 3 |
| 2013 | 1 | 0 |
| 2014 | 4 | 2 |
| 2015 | 4 | 1 |
| 2016 | 0 | 0 |
| 2017 | 0 | 1 |
| 2018 | 1 | 3 |
| 2019 | 1 | 1 |
| 2020 | 2 | 3 |
| 2021 | 2 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 3 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell array and fuel cell inspection method2 Jun 2026US 12,646,734 B2Hitachi High-Tech Corporation
- Connections for redox battery integration31 Mar 2026US 12,592,405 B2Standard Energy Inc.
- Fuel cell assembly and associated method of operation15 Oct 2024US 12,119,524 B2Intelligent Energy Limited
- Fuel cell, fuel cell stack and method of operating a fuel cell stack8 Aug 2023US 11,721,817 B2Robert Bosch GmbH
- Power supply device having a fuel cell arrangement and method for lowering voltage in a fuel cell arrangement19 Jul 2022US 11,390,170 B2Audi AG
- Connections for redox battery integration23 Jul 2026US 2026/0213242 A1Standard Energy Inc.
- Method for restoring performance20 Nov 2025US 2025/0357513 A1LIVA Power Management Systems GmbH
- Sealing device configured to be mounted in a fluid flow channel of a fuel cell stack, and sealing method17 Apr 2025US 2025/0125382 A1Safran Power Units
- Module for an electrochemical device, having a longer useful life9 Jan 2025US 2025/0015314 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Connections for redox battery integration23 Feb 2023US 2023/0057780 A1Standard Energy Inc.
Most cited
By later US patents
- Fuel cell and method for controlling same103US 6,096,449 AAvista Labs · 2000
- Fuel cell power generation system and method of controlling the same48US 5,462,815 AFuji Electric Co., Ltd. · 1995
- Fuel cell power systems, direct current voltage converters, fuel cell power generation methods, power conditioning methods and direct current power conditioning methods46US 6,428,918 B1Avista Laboratories, Inc. · 2002
- Device and method for monitoring fuel cell performance and controlling a fuel cell system33US 6,762,587 B1Recon Industrial Controls Corp. · 2004
- Zinc-chlorine battery plant system and method32US 4,287,267 AEnergy Development Associates, Inc. · 1981