H01M 8/0271
Sealing or supporting means around electrodes, matrices or membranes
H01M8/0271 (Sealing or supporting means around electrodes, matrices or membranes) appears on 2,684 US grants and 3,686 published applications in this corpus.
Search patents in H01M- Granted patents
- 2,684
- Published applications
- 3,686
- Assignees
- 882
- Inventors
- 5,764
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 4 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 4 | 0 |
| 1986 | 9 | 0 |
| 1987 | 6 | 0 |
| 1988 | 15 | 0 |
| 1989 | 9 | 0 |
| 1990 | 12 | 0 |
| 1991 | 6 | 0 |
| 1992 | 8 | 0 |
| 1993 | 14 | 0 |
| 1994 | 19 | 0 |
| 1995 | 20 | 0 |
| 1996 | 19 | 0 |
| 1997 | 10 | 0 |
| 1998 | 16 | 0 |
| 1999 | 20 | 0 |
| 2000 | 33 | 0 |
| 2001 | 35 | 18 |
| 2002 | 43 | 82 |
| 2003 | 43 | 110 |
| 2004 | 66 | 177 |
| 2005 | 55 | 171 |
| 2006 | 72 | 185 |
| 2007 | 74 | 186 |
| 2008 | 71 | 173 |
| 2009 | 82 | 209 |
| 2010 | 131 | 189 |
| 2011 | 113 | 162 |
| 2012 | 142 | 126 |
| 2013 | 120 | 135 |
| 2014 | 127 | 155 |
| 2015 | 136 | 159 |
| 2016 | 107 | 119 |
| 2017 | 96 | 106 |
| 2018 | 109 | 150 |
| 2019 | 148 | 158 |
| 2020 | 136 | 143 |
| 2021 | 109 | 137 |
| 2022 | 131 | 133 |
| 2023 | 96 | 141 |
| 2024 | 67 | 127 |
| 2025 | 67 | 128 |
| 2026 | 58 | 107 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Membrane-electrode assembly capable of satisfying both of two requirements of excellent performance and high durability, and fuel cell including same6 Oct 2026US 12,755,996 B2Kolon Industries, Inc.
- 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
- Bipolar separator for electrochemical reactor22 Sep 2026US 12,744,225 B2Alstom HydrogèNe SAS
- Fuel cell stack having casting material and method for producing a fuel cell stack15 Sep 2026US 12,738,524 B2Audi AG
- Method for producing separator8 Oct 2026US 2026/0312084 A1Nok Corporation
- Fluid connector structure and hydrogen line for fuel cell8 Oct 2026US 2026/0312086 A1Nifco Inc.
- Membrane electrode assembly with protected edges8 Oct 2026US 2026/0312106 A1GM Global Technology Operations LLC
- Solid oxide fuel cell1 Oct 2026US 2026/0302263 A1Nissan Motor Co., Ltd.
- Spacer member and fuel cell1 Oct 2026US 2026/0302274 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Solid electrolyte fuel cells197US 5,273,837 ACorning Incorporated · 1993
- Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant195US 5,573,867 AWestinghouse Electric Corp. · 1996
- Solid oxide electrolyte fuel cell136US 5,501,914 AMitsubishi Jukogyo Kabushiki Kaisha · 1996
- Solid electrolyte fuel cell125US 4,910,100 AFuji Electric Co., Ltd. · 1990
- Electrochemical cell with a porous support plate119US 6,024,848 AInternational Fuel Cells Corporation · 2000