H01M 8/24
Grouping of fuel cells
Official title: Grouping of fuel cells, e.g. stacking of fuel cells
H01M8/24 (Grouping of fuel cells) appears on 6,433 US grants and 8,349 published applications in this corpus.
Search patents in H01M- Granted patents
- 6,433
- Published applications
- 8,349
- Assignees
- 1,489
- Inventors
- 10,707
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 8 | 0 |
| 1978 | 6 | 0 |
| 1979 | 6 | 0 |
| 1980 | 9 | 0 |
| 1981 | 10 | 0 |
| 1982 | 11 | 0 |
| 1983 | 20 | 0 |
| 1984 | 17 | 0 |
| 1985 | 15 | 0 |
| 1986 | 26 | 0 |
| 1987 | 32 | 0 |
| 1988 | 33 | 0 |
| 1989 | 35 | 0 |
| 1990 | 28 | 0 |
| 1991 | 25 | 0 |
| 1992 | 28 | 0 |
| 1993 | 43 | 0 |
| 1994 | 41 | 0 |
| 1995 | 30 | 0 |
| 1996 | 46 | 0 |
| 1997 | 22 | 0 |
| 1998 | 53 | 0 |
| 1999 | 77 | 0 |
| 2000 | 82 | 0 |
| 2001 | 88 | 44 |
| 2002 | 119 | 204 |
| 2003 | 131 | 310 |
| 2004 | 155 | 460 |
| 2005 | 162 | 448 |
| 2006 | 174 | 428 |
| 2007 | 169 | 423 |
| 2008 | 181 | 420 |
| 2009 | 211 | 449 |
| 2010 | 339 | 438 |
| 2011 | 305 | 366 |
| 2012 | 315 | 283 |
| 2013 | 258 | 284 |
| 2014 | 293 | 268 |
| 2015 | 263 | 367 |
| 2016 | 245 | 285 |
| 2017 | 242 | 232 |
| 2018 | 240 | 313 |
| 2019 | 282 | 308 |
| 2020 | 296 | 291 |
| 2021 | 251 | 259 |
| 2022 | 267 | 309 |
| 2023 | 246 | 381 |
| 2024 | 162 | 278 |
| 2025 | 204 | 266 |
| 2026 | 129 | 235 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01M 8/2465Details of groupings of fuel cells4,294
- H01M 8/241With solid or matrix-supported electrolytes3,733
- H01M 8/2457With both reactants being gaseous or vaporised1,186
- H01M 8/249Comprising two or more groupings of fuel cells792
- H01M 8/2404Processes or apparatus for grouping fuel cells469
- H01M 8/2455With liquid, solid or electrolyte-charged reactants201
- H01M 8/2459Comprising electrode layers with interposed electrolyte compartment with possible electrolyte supply or86
Recent patents
- Cell, cell stack device, module, and module housing device6 Oct 2026US 12,755,997 B2KYOCERA Corporation
- SOC stack comprising integrated interconnect and spacer6 Oct 2026US 12,755,998 B2Topsoe A/S
- Fuel cell assembly29 Sep 2026US 12,749,691 B2Powercell Sweden AB
- Fuel cell stack having casting material and method for producing a fuel cell stack15 Sep 2026US 12,738,524 B2Audi AG
- Hybrid elastomeric material8 Sep 2026US 12,729,305 B2CHT Germany GmbH
- Fuel cell system and control method therefor8 Oct 2026US 2026/0312102 A1Nissan Motor Co., Ltd.
- Fuel cell device8 Oct 2026US 2026/0312110 A1Toyota Jidosha Kabushiki Kaisha
- Power generation cell and fuel cell stack1 Oct 2026US 2026/0302271 A1Honda Motor Co., Ltd.
- Solid-oxide stack structure with improved cooling1 Oct 2026US 2026/0302272 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- End unit of fuel cell1 Oct 2026US 2026/0302282 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Method and apparatus for monitoring fuel cell performance359US 5,170,124 AMinister of National Defence of Her Majesty's Canadian Government · 1992
- Generating electricity from coal in situ328US 4,250,230 AIn Situ Technology, Inc. · 1981
- Application of fuel cells to power generation systems246US 5,401,589 ACJBD Limited · 1995
- Apparatus and method for heating subterranean formations using fuel cells241US 6,684,948 B12004
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998