H01M 8/04708
Of fuel cell reactants
Official title: {of fuel cell reactants}
H01M8/04708 (Of fuel cell reactants) appears on 177 US grants and 261 published applications in this corpus.
Search patents in H01M- Granted patents
- 177
- Published applications
- 261
- Assignees
- 127
- Inventors
- 644
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2002 | 1 | 4 |
| 2003 | 0 | 2 |
| 2004 | 5 | 9 |
| 2005 | 2 | 7 |
| 2006 | 8 | 10 |
| 2007 | 3 | 12 |
| 2008 | 3 | 5 |
| 2009 | 2 | 8 |
| 2010 | 3 | 8 |
| 2011 | 4 | 8 |
| 2012 | 3 | 3 |
| 2013 | 7 | 12 |
| 2014 | 5 | 7 |
| 2015 | 9 | 7 |
| 2016 | 7 | 5 |
| 2017 | 6 | 10 |
| 2018 | 9 | 8 |
| 2019 | 7 | 24 |
| 2020 | 15 | 19 |
| 2021 | 17 | 19 |
| 2022 | 14 | 14 |
| 2023 | 21 | 15 |
| 2024 | 7 | 12 |
| 2025 | 13 | 16 |
| 2026 | 6 | 17 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Method for controlling a drying process of a fuel cell system6 Oct 2026US 12,755,992 B2Robert Bosch GmbH
- Fuel cell system and method of controlling same2 Jun 2026US 12,646,730 B2Hyundai Motor Company
- Method and fuel cell power system to identify and compensate for fuel composition variations in a fuel cell stack or system19 May 2026US 12,633,558 B2GE Vernova Infrastructure Technology LLC
- Hydrogen release/storage system, hydrogen release/storage method, ammonia production equipment, gas turbine, fuel cell, and steel mill24 Mar 2026US 12,582,953 B2Mitsubishi Heavy Industries, Ltd.
- Fuel cell system10 Mar 2026US 12,573,643 B2Honda Motor Co., Ltd.
- Conditioning method and conditioning device8 Oct 2026US 2026/0312092 A1Robert Bosch GmbH
- Automatically openable and closable overpressure hydrogen discharge apparatus for hydrogen electric vehicle1 Oct 2026US 2026/0298412 A1Hyundai Motor Company
- Fuel cell activation device1 Oct 2026US 2026/0302287 A1Honda Motor Co., Ltd.
- Swelling reduction system1 Oct 2026US 2026/0302291 A1Subaru Corporation
- 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
Most cited
By later US patents
- Fuel cell power systems, direct current voltage converters, fuel cell power generation methods, power conditioning methods and direct current power conditioning methods46US 6,428,918 B1Avista Laboratories, Inc. · 2002
- Fuel cell secondary power and thermal management systems36US 10,978,723 B2Honeywell International Inc. · 2021
- Alternative path cooling of a high temperature fuel cell33US 10,069,150 B2The Boeing Company · 2018
- Device and method for monitoring fuel cell performance and controlling a fuel cell system33US 6,762,587 B1Recon Industrial Controls Corp. · 2004
- Temperature zones in a solid oxide fuel cell auxiliary power unit32US 7,279,243 B2Delphi Technologies, Inc. · 2007