H01M 8/2483
Characterised by internal manifolds
Official title: characterised by internal manifolds
H01M8/2483 (Characterised by internal manifolds) appears on 2,070 US grants and 2,557 published applications in this corpus.
Search patents in H01M- Granted patents
- 2,070
- Published applications
- 2,557
- Assignees
- 569
- Inventors
- 3,780
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 10 | 0 |
| 1989 | 5 | 0 |
| 1990 | 10 | 0 |
| 1991 | 6 | 0 |
| 1992 | 6 | 0 |
| 1993 | 15 | 0 |
| 1994 | 9 | 0 |
| 1995 | 8 | 0 |
| 1996 | 23 | 0 |
| 1997 | 5 | 0 |
| 1998 | 20 | 0 |
| 1999 | 20 | 0 |
| 2000 | 35 | 0 |
| 2001 | 39 | 18 |
| 2002 | 39 | 69 |
| 2003 | 45 | 127 |
| 2004 | 62 | 180 |
| 2005 | 63 | 165 |
| 2006 | 60 | 147 |
| 2007 | 65 | 130 |
| 2008 | 72 | 142 |
| 2009 | 83 | 184 |
| 2010 | 142 | 158 |
| 2011 | 110 | 123 |
| 2012 | 135 | 110 |
| 2013 | 91 | 95 |
| 2014 | 105 | 92 |
| 2015 | 103 | 140 |
| 2016 | 99 | 78 |
| 2017 | 81 | 56 |
| 2018 | 82 | 53 |
| 2019 | 80 | 76 |
| 2020 | 69 | 56 |
| 2021 | 54 | 55 |
| 2022 | 55 | 55 |
| 2023 | 44 | 75 |
| 2024 | 29 | 57 |
| 2025 | 31 | 63 |
| 2026 | 27 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- SOC stack comprising integrated interconnect and spacer6 Oct 2026US 12,755,998 B2Topsoe A/S
- Three-dimensional plates with curving fluid channels for stack systems25 Aug 2026US 12,719,064 B2Plug Power Inc.
- Gas diffusion method for use with fuel cell stack25 Aug 2026US 12,719,069 B2Intelligent Energy Limited
- Fuel cell stack and fuel gas release method21 Jul 2026US 12,689,052 B2Honda Motor Co., Ltd.
- Fuel cell9 Jun 2026US 12,651,756 B2Hyundai Motor Company
- Manifold insert for an electrochemical system1 Oct 2026US 2026/0302304 A1New Hydrogen IP, LLC
- Electrochemical cell24 Sep 2026US 2026/0290861 A1Saudi Arabian Oil Company
- Manifold structure in fuel cell24 Sep 2026US 2026/0290871 A1Honda Motor Co., Ltd.
- Fuel cell stack17 Sep 2026US 2026/0279849 A1Honda Motor Co., Ltd.
- Fuel cell stack17 Sep 2026US 2026/0279871 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998
- Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant195US 5,573,867 AWestinghouse Electric Corp. · 1996
- Thermally enhanced compact reformer179US 5,858,314 AZtek Corporation · 1999
- Electrochemical fuel cell generator having an internal and leak tight hydrocarbon fuel reformer153US 5,733,675 AWestinghouse Electric Corp. · 1998
- Brazed bipolar plates for PEM fuel cells144US 5,776,624 AGeneral Motors Corporation · 1998