H01M 8/248
Means for compression of the fuel cell stacks
H01M8/248 (Means for compression of the fuel cell stacks) appears on 587 US grants and 896 published applications in this corpus.
Search patents in H01M- Granted patents
- 587
- Published applications
- 896
- Assignees
- 269
- Inventors
- 1,596
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 2 |
| 2002 | 3 | 14 |
| 2003 | 7 | 19 |
| 2004 | 14 | 42 |
| 2005 | 9 | 39 |
| 2006 | 11 | 41 |
| 2007 | 20 | 31 |
| 2008 | 14 | 51 |
| 2009 | 17 | 63 |
| 2010 | 39 | 44 |
| 2011 | 30 | 43 |
| 2012 | 30 | 31 |
| 2013 | 33 | 21 |
| 2014 | 23 | 24 |
| 2015 | 25 | 39 |
| 2016 | 29 | 27 |
| 2017 | 13 | 22 |
| 2018 | 30 | 29 |
| 2019 | 34 | 30 |
| 2020 | 29 | 39 |
| 2021 | 25 | 41 |
| 2022 | 33 | 39 |
| 2023 | 30 | 51 |
| 2024 | 31 | 34 |
| 2025 | 26 | 42 |
| 2026 | 19 | 38 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell stack having casting material and method for producing a fuel cell stack15 Sep 2026US 12,738,524 B2Audi AG
- Fuel cell stack, fuel cell device and fuel cell vehicle8 Sep 2026US 12,731,799 B2kraftwerk ASSETS Inc.
- Fuel cell dry end with o-ring compression seal1 Sep 2026US 12,725,810 B2GM Global Technology Operations LLC
- Clamping and holding apparatus11 Aug 2026US 12,706,320 B2
- End plate, fastening bar, and fuel cell stack including the same4 Aug 2026US 12,700,607 B2Hyundai Motor Company
- End unit of fuel cell1 Oct 2026US 2026/0302282 A1Honda Motor Co., Ltd.
- Fuel cell stack17 Sep 2026US 2026/0279849 A1Honda Motor Co., Ltd.
- Tie rod spring assembly for an electrochemical system3 Sep 2026US 2026/0260923 A1New Hydrogen IP, LLC
- Fuel cell and method of manufacturing fuel cell27 Aug 2026US 2026/0253919 A1Honda Motor Co., Ltd.
- Fuel cell stack assembly with compression means27 Aug 2026US 2026/0253933 A1Powercell Sweden AB
Most cited
By later US patents
- Membrane electrode assembly for an electrochemical fuel cell and a method of making an improved membrane electrode assembly110US 6,057,054 ABallard Power Systems Inc. · 2000
- Electrochemical fuel cell stack with compression mechanism extending through interior manifold headers103US 5,484,666 ABallard Power Systems Inc. · 1996
- Electrochemical fuel cell stack with improved reactant manifolding and sealing82US 6,066,409 ABallard Power Systems Inc. · 2000
- Electrochemical fuel cell stack with compression bands71US 5,789,091 ABallard Power Systems Inc. · 1998
- Multi-function energy system operable as a fuel cell, reformer, or thermal plant49US 7,311,986 B2Ztek Corporation · 2007