H01M 8/0441
Of cathode exhausts
Official title: {of cathode exhausts}
H01M8/0441 (Of cathode exhausts) appears on 109 US grants and 176 published applications in this corpus.
Search patents in H01M- Granted patents
- 109
- Published applications
- 176
- Assignees
- 72
- Inventors
- 373
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2001 | 0 | 1 |
| 2002 | 0 | 3 |
| 2003 | 1 | 2 |
| 2004 | 1 | 2 |
| 2005 | 2 | 8 |
| 2006 | 2 | 7 |
| 2007 | 2 | 8 |
| 2008 | 2 | 7 |
| 2009 | 3 | 7 |
| 2010 | 3 | 13 |
| 2011 | 5 | 10 |
| 2012 | 5 | 9 |
| 2013 | 7 | 6 |
| 2014 | 8 | 5 |
| 2015 | 6 | 6 |
| 2016 | 7 | 3 |
| 2017 | 7 | 6 |
| 2018 | 5 | 8 |
| 2019 | 2 | 12 |
| 2020 | 11 | 6 |
| 2021 | 9 | 9 |
| 2022 | 3 | 8 |
| 2023 | 11 | 8 |
| 2024 | 4 | 6 |
| 2025 | 3 | 9 |
| 2026 | 0 | 7 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Electric power generation system based on pressurized fuel cell power system with air cooling and recirculation and method for electric power generation by the system30 Dec 2025US 12,512,486 B2ZeroAvia, Inc.
- Oxygen-fed fuel cell system and method of using same16 Sep 2025US 12,418,036 B2
- System including fuel cell assembly voltage monitor9 Sep 2025US 12,412,913 B2FuelCell Energy, Inc.
- Reforming catalyst pattern for fuel cell operated with enhanced CO2 utilization17 Sep 2024US 12,095,129 B2ExxonMobil Technology and Engineering Company
- Fuel cell vehicle with bypass valve control for clearing exhaust23 Apr 2024US 11,967,744 B2Ford Global Technologies, LLC
- Method of diagnosing and preventing disconnection of fuel cell humidifier6 Aug 2026US 2026/0229562 A1Hyundai Motor Company
- Inverted centrifugal blower system and fuel cell incorporating same9 Jul 2026US 2026/0196534 A1WATT Fuel Cell Corp.
- Method for operating a fuel cell system18 Jun 2026US 2026/0171438 A1
- Startup process control method and device for fuel cell system18 Jun 2026US 2026/0171448 A1Bosch Hydrogen Powertrain Systems (Chongqing) Co., Ltd.
- Fuel cell system4 Jun 2026US 2026/0155411 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- System and method for optimizing efficiency and power output from a vanadium redox battery energy storage system13US 8,277,964 B2JD Holding Inc. · 2012
- Fuel reforming system12US 7,189,371 B2Nissan Motor Co., Ltd. · 2007
- Electrochemical cell system output control method and apparatus9US 6,833,205 B2Proton Energy Systems, Inc. · 2004
- System, computer program product and method for controlling a fuel cell testing device7US 6,889,147 B2Hydrogenics Corporation · 2005
- Solid-oxide fuel cell assembly having an electronic control unit within a structural enclosure6US 6,974,646 B2Delphi Technologies, Inc. · 2005