H01M 8/2484
Characterised by external manifolds
Official title: characterised by external manifolds
H01M8/2484 (Characterised by external manifolds) appears on 1,087 US grants and 1,308 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,087
- Published applications
- 1,308
- Assignees
- 412
- Inventors
- 2,532
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 8 | 0 |
| 1985 | 8 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 8 | 0 |
| 1989 | 7 | 0 |
| 1990 | 12 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 10 | 0 |
| 1997 | 2 | 0 |
| 1998 | 10 | 0 |
| 1999 | 2 | 0 |
| 2000 | 10 | 0 |
| 2001 | 9 | 8 |
| 2002 | 18 | 19 |
| 2003 | 25 | 54 |
| 2004 | 22 | 62 |
| 2005 | 29 | 69 |
| 2006 | 29 | 60 |
| 2007 | 27 | 64 |
| 2008 | 21 | 69 |
| 2009 | 33 | 55 |
| 2010 | 50 | 75 |
| 2011 | 53 | 80 |
| 2012 | 45 | 34 |
| 2013 | 45 | 50 |
| 2014 | 49 | 52 |
| 2015 | 47 | 57 |
| 2016 | 45 | 50 |
| 2017 | 45 | 37 |
| 2018 | 38 | 56 |
| 2019 | 47 | 45 |
| 2020 | 56 | 55 |
| 2021 | 32 | 40 |
| 2022 | 52 | 53 |
| 2023 | 47 | 52 |
| 2024 | 29 | 43 |
| 2025 | 32 | 34 |
| 2026 | 17 | 35 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Solid oxide cell stack18 Aug 2026US 12,712,191 B2Samsung Electro-Mechanics Co., Ltd.
- Fuel cell system4 Aug 2026US 12,700,605 B2LG Electronics Inc.
- Separator module for fuel cells and unit cell for fuel cells including the same21 Jul 2026US 12,689,041 B2Hyundai Motor Company
- Fuel cell module14 Jul 2026US 12,683,181 B2Toyota Jidosha Kabushiki Kaisha
- Fuel cell vehicle2 Jun 2026US 12,646,731 B2Hyundai Motor Company
- Fuel cell device8 Oct 2026US 2026/0312110 A1Toyota Jidosha Kabushiki Kaisha
- Fuel cell stack1 Oct 2026US 2026/0302305 A1Honda Motor Co., Ltd.
- Stacked electrochemical cell systems1 Oct 2026US 2026/0302306 A1Bloom Energy Corporation
- Soc stack comprising connection plate24 Sep 2026US 2026/0286545 A1Topsoe A/S
- Fuel cell sealing structure24 Sep 2026US 2026/0290856 A1Toyota Jidosha Kabushiki Kaisha
Most cited
By later US patents
- Solid electrolyte fuel cells197US 5,273,837 ACorning Incorporated · 1993
- Thermally enhanced compact reformer179US 5,858,314 AZtek Corporation · 1999
- Fuel cell system utilizing ion exchange membranes and bipolar plates150US 4,175,165 AEngelhard Minerals & Chemicals Corporation · 1979
- Electrochemical cell apparatus having axially distributed entry of a fuel-spent fuel mixture transverse to the cell lengths136US 4,983,471 AWestinghouse Electric Corp. · 1991
- Electrochemical generator apparatus containing modified high temperature insulation and coated surfaces for use with hydrocarbon fuels121US 4,898,792 AWestinghouse Electric Corp. · 1990