H01M 8/1004
Characterised by membrane-electrode assemblies [mea]
Official title: characterised by membrane-electrode assemblies [MEA] (H01M8/12 takes precedence)
H01M8/1004 (Characterised by membrane-electrode assemblies [mea]) appears on 2,947 US grants and 4,316 published applications in this corpus.
Search patents in H01M- Granted patents
- 2,947
- Published applications
- 4,316
- Assignees
- 978
- Inventors
- 6,656
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 4 | 0 |
| 1989 | 9 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 14 | 0 |
| 1993 | 11 | 0 |
| 1994 | 14 | 0 |
| 1995 | 13 | 0 |
| 1996 | 11 | 0 |
| 1997 | 16 | 0 |
| 1998 | 23 | 0 |
| 1999 | 33 | 0 |
| 2000 | 32 | 0 |
| 2001 | 43 | 21 |
| 2002 | 47 | 98 |
| 2003 | 53 | 139 |
| 2004 | 70 | 170 |
| 2005 | 66 | 204 |
| 2006 | 73 | 209 |
| 2007 | 59 | 195 |
| 2008 | 76 | 165 |
| 2009 | 82 | 184 |
| 2010 | 135 | 197 |
| 2011 | 115 | 120 |
| 2012 | 117 | 95 |
| 2013 | 104 | 105 |
| 2014 | 90 | 124 |
| 2015 | 94 | 134 |
| 2016 | 95 | 165 |
| 2017 | 101 | 151 |
| 2018 | 109 | 195 |
| 2019 | 153 | 175 |
| 2020 | 182 | 176 |
| 2021 | 141 | 255 |
| 2022 | 183 | 248 |
| 2023 | 181 | 243 |
| 2024 | 145 | 187 |
| 2025 | 132 | 192 |
| 2026 | 92 | 169 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for preparing porous carbon structure having increased surface area and total pore volume, and porous carbon structure prepared using same6 Oct 2026US 12,753,079 B2Kolon Industries, Inc.
- Bipolar plate and fuel cell stack6 Oct 2026US 12,755,988 B2Robert Bosch GmbH
- 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.
- Electrochemical catalyst of core-shell structure and manufacturing method thereof22 Sep 2026US 12,744,222 B2Korea Institute of Science and Technology
- Electrode catalyst layer, membrane electrode assembly, and polymer electrolyte fuel cell22 Sep 2026US 12,744,224 B2Toppan Inc.
- Oxygen evolution reaction catalyst and method for its preparation8 Oct 2026US 2026/0308786 A1Johnson Matthey Public Limited Company
- Multi-metallic oxygen reduction reaction (orr) cu-pt-au catalyst in high-temperature proton exchange membrane fuel cells8 Oct 2026US 2026/0312076 A1Brown University
- Oxygen reduction catalyst and use thereof8 Oct 2026US 2026/0312077 A1Toyota Jidosha Kabushiki Kaisha
- Membrane electrode assembly with protected edges8 Oct 2026US 2026/0312106 A1GM Global Technology Operations LLC
- Separator for fuel cell with excellent corrosion resistance and conductivity and coating method therefor8 Oct 2026US 2026/0312107 A1Hyundai Motor Company
Most cited
By later US patents
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998
- Membrane electrode assembly181US 5,879,828 AMinnesota Mining and Manufacturing Company · 1999
- Aqueous liquid feed organic fuel cell using solid polymer electrolyte membrane173US 5,599,638 ACalifornia Institute of Technology · 1997
- Nanowire-based membrane electrode assemblies for fuel cells164US 7,179,561 B2Nanosys, Inc. · 2007
- Electrode assembly for use in a solid polymer electrolyte fuel cell163US 4,876,115 AUnited States Department of Energy · 1989