H01M 8/0247
Characterised by the form
Official title: characterised by the form (characterised by a channel configuration H01M8/0258)
H01M8/0247 (Characterised by the form) appears on 1,919 US grants and 2,679 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,919
- Published applications
- 2,679
- Assignees
- 698
- Inventors
- 4,263
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 4 | 0 |
| 1990 | 6 | 0 |
| 1991 | 9 | 0 |
| 1992 | 4 | 0 |
| 1993 | 7 | 0 |
| 1994 | 12 | 0 |
| 1995 | 8 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 16 | 0 |
| 1999 | 23 | 0 |
| 2000 | 19 | 0 |
| 2001 | 32 | 17 |
| 2002 | 42 | 79 |
| 2003 | 44 | 97 |
| 2004 | 51 | 166 |
| 2005 | 53 | 168 |
| 2006 | 54 | 149 |
| 2007 | 61 | 159 |
| 2008 | 66 | 146 |
| 2009 | 80 | 152 |
| 2010 | 125 | 136 |
| 2011 | 93 | 119 |
| 2012 | 111 | 83 |
| 2013 | 80 | 84 |
| 2014 | 84 | 84 |
| 2015 | 75 | 82 |
| 2016 | 77 | 75 |
| 2017 | 52 | 71 |
| 2018 | 79 | 90 |
| 2019 | 76 | 101 |
| 2020 | 91 | 79 |
| 2021 | 74 | 85 |
| 2022 | 74 | 106 |
| 2023 | 62 | 96 |
| 2024 | 44 | 89 |
| 2025 | 55 | 90 |
| 2026 | 42 | 76 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel cell separator and method for manufacturing same6 Oct 2026US 12,755,986 B2Dongwoo Hst Co., Ltd.
- Fuel cell assembly29 Sep 2026US 12,749,691 B2Powercell Sweden AB
- Bipolar plate, method of production, and use thereof8 Sep 2026US 12,731,796 B2EKPO Fuel Cell Technologies GmbH
- Bipolar plate for a fuel cell system8 Sep 2026US 12,731,797 B2Robert Bosch GmbH
- Separator integrated with gasket for fuel cell and method for manufacturing the same25 Aug 2026US 12,719,065 B2Hyundai Motor Company
- Method for producing separator8 Oct 2026US 2026/0312084 A1Nok Corporation
- Separator for fuel cell and method of manufacturing separator for fuel cell1 Oct 2026US 2026/0302270 A1Toyota Jidosha Kabushiki Kaisha
- Power generation cell and fuel cell stack1 Oct 2026US 2026/0302271 A1Honda Motor Co., Ltd.
- Fuel cell1 Oct 2026US 2026/0302275 A1Toyota Jidosha Kabushiki Kaisha
- End unit of fuel cell1 Oct 2026US 2026/0302282 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Low cost bipolar current collector-separator for electrochemical cells160US 4,214,969 AGeneral Electric Company · 1980
- Solid oxide fuel cell stack156US 7,465,512 B2ROLLS-ROYCE plc · 2008
- Brazed bipolar plates for PEM fuel cells144US 5,776,624 AGeneral Motors Corporation · 1998
- Solid electrolyte fuel cell125US 4,910,100 AFuji Electric Co., Ltd. · 1990
- Membrane electrode assemblies115US 5,910,378 AMinnesota Mining and Manufacturing Company · 1999