H01M 8/04014
Heat exchange using gaseous fluids
Official title: Heat exchange using gaseous fluids; Heat exchange by combustion of reactants
H01M8/04014 (Heat exchange using gaseous fluids) appears on 1,777 US grants and 2,328 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,777
- Published applications
- 2,328
- Assignees
- 586
- Inventors
- 3,733
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 9 | 0 |
| 1988 | 6 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 5 | 0 |
| 1992 | 5 | 0 |
| 1993 | 6 | 0 |
| 1994 | 11 | 0 |
| 1995 | 5 | 0 |
| 1996 | 14 | 0 |
| 1997 | 7 | 0 |
| 1998 | 16 | 0 |
| 1999 | 18 | 0 |
| 2000 | 26 | 0 |
| 2001 | 25 | 23 |
| 2002 | 30 | 77 |
| 2003 | 41 | 90 |
| 2004 | 47 | 104 |
| 2005 | 55 | 144 |
| 2006 | 60 | 112 |
| 2007 | 49 | 105 |
| 2008 | 51 | 124 |
| 2009 | 52 | 99 |
| 2010 | 81 | 78 |
| 2011 | 83 | 75 |
| 2012 | 69 | 64 |
| 2013 | 57 | 64 |
| 2014 | 73 | 92 |
| 2015 | 51 | 92 |
| 2016 | 66 | 65 |
| 2017 | 75 | 72 |
| 2018 | 55 | 69 |
| 2019 | 63 | 71 |
| 2020 | 73 | 91 |
| 2021 | 70 | 60 |
| 2022 | 71 | 120 |
| 2023 | 91 | 131 |
| 2024 | 90 | 121 |
| 2025 | 84 | 126 |
| 2026 | 52 | 59 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
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.
- Gas conveying unit, system consisting of a gas conveying unit and a water separating device, and fuel cell system15 Sep 2026US 12,738,513 B2Robert Bosch GmbH
- Thermal energy storage system coupled with thermal power cycle systems8 Sep 2026US 12,729,632 B1Rondo Energy, Inc.
- Solid-oxide stack structure with improved cooling1 Oct 2026US 2026/0302272 A1Commissariat A L' Energie Atomique Et Aux Energies Alternatives
- Afterburners including methods of making and operating1 Oct 2026US 2026/0302276 A1WATT Fuel Cell Corp.
- Control method for fuel cell system and control device for fuel cell system1 Oct 2026US 2026/0302290 A1Nissan Motor Co., Ltd.
- System and method for processing syngas from fuel cell system exhaust1 Oct 2026US 2026/0302297 A1Bloom Energy Corporation
- Assembly for aircraft, comprising a specific architecture for the distribution of fuel composition and electricity24 Sep 2026US 2026/0285498 A1
Most cited
By later US patents
- 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
- Apparatus and method for heating subterranean formations using fuel cells241US 6,684,948 B12004
- Fuel cell gas management system240US 6,013,385 AEmprise Corporation · 2000
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998