H01M 8/04007
Related to heat exchange
Official title: related to heat exchange
H01M8/04007 (Related to heat exchange) appears on 4,498 US grants and 6,064 published applications in this corpus.
Search patents in H01M- Granted patents
- 4,498
- Published applications
- 6,064
- Assignees
- 1,175
- Inventors
- 8,638
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 11 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 4 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 7 | 0 |
| 1986 | 8 | 0 |
| 1987 | 17 | 0 |
| 1988 | 12 | 0 |
| 1989 | 16 | 0 |
| 1990 | 9 | 0 |
| 1991 | 11 | 0 |
| 1992 | 8 | 0 |
| 1993 | 20 | 0 |
| 1994 | 26 | 0 |
| 1995 | 13 | 0 |
| 1996 | 29 | 0 |
| 1997 | 14 | 0 |
| 1998 | 30 | 0 |
| 1999 | 51 | 0 |
| 2000 | 63 | 0 |
| 2001 | 76 | 42 |
| 2002 | 90 | 183 |
| 2003 | 98 | 253 |
| 2004 | 148 | 322 |
| 2005 | 142 | 347 |
| 2006 | 155 | 320 |
| 2007 | 149 | 335 |
| 2008 | 147 | 300 |
| 2009 | 136 | 313 |
| 2010 | 211 | 278 |
| 2011 | 211 | 203 |
| 2012 | 216 | 167 |
| 2013 | 180 | 164 |
| 2014 | 172 | 202 |
| 2015 | 129 | 211 |
| 2016 | 142 | 173 |
| 2017 | 170 | 180 |
| 2018 | 141 | 177 |
| 2019 | 171 | 189 |
| 2020 | 176 | 192 |
| 2021 | 168 | 184 |
| 2022 | 191 | 251 |
| 2023 | 212 | 308 |
| 2024 | 172 | 292 |
| 2025 | 196 | 291 |
| 2026 | 126 | 187 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- H01M 8/04014Heat exchange using gaseous fluids1,777
- H01M 8/04029Heat exchange using liquids1,494
- H01M 8/04067Heat exchange or temperature measuring elements, thermal insulation1,352
- H01M 8/04037Electrical heating344
- H01M 8/04052Storage of heat in the fuel cell system168
- H01M 8/04059Evaporative processes for the cooling of a fuel cell150
- H01M 8/04044Purification of heat exchange media132
Recent patents
- Thermal energy storage system coupled with a solid oxide electrolysis system6 Oct 2026US 12,753,710 B2Rondo Energy, Inc.
- Mounting device for a fan unit6 Oct 2026US 12,753,777 B2Spectronik Pte. Ltd.
- Hybrid hydrogen fuel cell combustor power system6 Oct 2026US 12,755,989 B2Caterpillar Inc.
- Fuel-cell exhaust system6 Oct 2026US 12,755,991 B2Purem GmbH
- Apparatus for controlling temperature and pressure of aircraft29 Sep 2026US 12,747,023 B2Hyundai Motor Company
- Advanced power electronic circuit for fuel cell vehicles enabling independent cooling of various systems8 Oct 2026US 2026/0307542 A1Ford Global Technologies, LLC
- Propylene Carbonate Based Heat Transfer Fluid8 Oct 2026US 2026/0308436 A1CCI North America Corporation
- Fuel cell system with improved humidifier8 Oct 2026US 2026/0312088 A1Plastic Omnium New Energies France
- Method for operating a fuel cell system, and control device8 Oct 2026US 2026/0312093 A1Robert Bosch GmbH
- System and method for generating electricity using pyrolysis of plastics8 Oct 2026US 2026/0312100 A1
Most cited
By later US patents
- Remote power recharge for electronic equipment421US 7,068,991 B22006
- Remote charging system for a vehicle374US 5,982,139 A1999
- Carbonate fuel cell system with thermally integrated gasification359US 5,554,453 AEnergy Research Corporation · 1996
- Coal gasification and hydrogen production system and method301US 5,955,039 ASiemens Westinghouse Power Corporation · 1999
- Remote charging system for a vehicle290US 6,114,834 A2000