H01M 8/04074
Heat exchange unit structures specially adapted for fuel cell
Official title: {Heat exchange unit structures specially adapted for fuel cell}
H01M8/04074 (Heat exchange unit structures specially adapted for fuel cell) appears on 826 US grants and 1,067 published applications in this corpus.
Search patents in H01M- Granted patents
- 826
- Published applications
- 1,067
- Assignees
- 359
- Inventors
- 2,177
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 5 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 6 | 0 |
| 1999 | 11 | 0 |
| 2000 | 15 | 0 |
| 2001 | 16 | 6 |
| 2002 | 13 | 16 |
| 2003 | 16 | 25 |
| 2004 | 13 | 44 |
| 2005 | 13 | 62 |
| 2006 | 25 | 41 |
| 2007 | 23 | 43 |
| 2008 | 15 | 41 |
| 2009 | 25 | 38 |
| 2010 | 27 | 52 |
| 2011 | 21 | 31 |
| 2012 | 18 | 21 |
| 2013 | 31 | 18 |
| 2014 | 31 | 46 |
| 2015 | 23 | 51 |
| 2016 | 36 | 35 |
| 2017 | 34 | 27 |
| 2018 | 27 | 31 |
| 2019 | 34 | 37 |
| 2020 | 32 | 45 |
| 2021 | 35 | 53 |
| 2022 | 46 | 66 |
| 2023 | 55 | 86 |
| 2024 | 57 | 53 |
| 2025 | 44 | 57 |
| 2026 | 39 | 42 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Thermal energy storage system coupled with a solid oxide electrolysis system6 Oct 2026US 12,753,710 B2Rondo Energy, Inc.
- Thermal energy storage system coupled with thermal power cycle systems8 Sep 2026US 12,729,632 B1Rondo Energy, Inc.
- Fuel cell stack, fuel cell device and fuel cell vehicle8 Sep 2026US 12,731,799 B2kraftwerk ASSETS Inc.
- Thermal energy storage systems for use in material processing1 Sep 2026US 12,723,524 B2Rondo Energy, Inc.
- Method of nacelle air heat exchanger integration for a hydrogen fueled fuel cell powered aircraft25 Aug 2026US 12,716,394 B2The Boeing Company
- Busbar Arrangement, and Fuel Cell24 Sep 2026US 2026/0290855 A1Bayerische Motoren Werke Aktiengesellschaft
- Apparatus for heat transfer between, within, and amongst electrochemical cells, electrochemical cell stacks, and thermochemical reactors, such as a carbon reactors, in carbon-oxygen batteries as well as other devices and uses thereof24 Sep 2026US 2026/0290859 A1Noon Energy
- Fuel cell-equipped cargo vehicle17 Sep 2026US 2026/0274058 A1Honda Motor Co., Ltd.
- Fuel cell stack17 Sep 2026US 2026/0279871 A1Honda Motor Co., Ltd.
- Wing tank vaporizer for solid oxide fuel cell on unmanned aircraft27 Aug 2026US 2026/0250009 A1Lockheed Martin Corporation
Most cited
By later US patents
- Active microchannel heat exchanger165US 6,200,536 B1Battelle Memorial Institute · 2001
- Brazed bipolar plates for PEM fuel cells144US 5,776,624 AGeneral Motors Corporation · 1998
- Laminated fluid flow field assembly for electrochemical fuel cells126US 5,300,370 ABallard Power Systems Inc. · 1994
- Lightweight fuel cell membrane electrode assembly with integral reactant flow passages123US 5,252,410 ABallard Power Systems Inc. · 1993
- Convection transfer system120US 5,310,440 AInternational Business Machines Corporation · 1994