H01M 8/0447
Of cathode exhausts
Official title: {of cathode exhausts}
H01M8/0447 (Of cathode exhausts) appears on 64 US grants and 104 published applications in this corpus.
Search patents in H01M- Granted patents
- 64
- Published applications
- 104
- Assignees
- 58
- Inventors
- 236
- Latest grant
- 27 Jan 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 2 | 5 |
| 2004 | 1 | 1 |
| 2005 | 1 | 4 |
| 2006 | 0 | 2 |
| 2007 | 1 | 5 |
| 2008 | 4 | 7 |
| 2009 | 3 | 7 |
| 2010 | 1 | 1 |
| 2011 | 3 | 3 |
| 2012 | 4 | 5 |
| 2013 | 2 | 3 |
| 2014 | 3 | 5 |
| 2015 | 6 | 3 |
| 2016 | 1 | 2 |
| 2017 | 3 | 2 |
| 2018 | 0 | 1 |
| 2019 | 3 | 2 |
| 2020 | 4 | 3 |
| 2021 | 0 | 8 |
| 2022 | 3 | 4 |
| 2023 | 8 | 11 |
| 2024 | 1 | 9 |
| 2025 | 7 | 7 |
| 2026 | 1 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Anode recovery system of fuel cell27 Jan 2026US 12,537,208 B2Asia Hydrogen Energy
- Method for operating a fuel cell system, and analysis unit for a fuel cell system30 Dec 2025US 12,512,492 B2Robert Bosch GmbH
- System including fuel cell assembly voltage monitor9 Sep 2025US 12,412,913 B2FuelCell Energy, Inc.
- Method for operating a fuel cell system and control device for same2 Sep 2025US 12,407,007 B2Robert Bosch GmbH
- Flow field baffle for molten carbonate fuel cell cathode29 Jul 2025US 12,374,703 B2ExxonMobil Technology and Engineering Company
- Fuel cell system and purging method for inerting a fuel cell system8 Oct 2026US 2026/0312091 A1
- Drive control system and method for fuel cell vehicle25 Jun 2026US 2026/0175695 A1Hyundai Motor Company
- Method and Apparatus for Controlling a Power Transmission Device and a Fuel Cell Power System11 Jun 2026US 2026/0163036 A1Robert Bosch GmbH
- Method and control unit for determining the hydrogen proportion in the exhaust gas stream of a hydrogen-powered assembly25 Dec 2025US 2025/0391894 A1
- Cathode collector structures for molten carbonate fuel cell27 Nov 2025US 2025/0364574 A1ExxonMobil Technology and Engineering Company
Most cited
By later US patents
- PEM fuel cell monitoring system167US 5,763,113 AGeneral Motors Corporation · 1998
- Derivation of control parameters of fuel cell systems for flexible fuel operation13US 8,211,583 B2Bloom Energy Corporation · 2012
- Method for determining the substance conversion during electrochemical reactions and electrochemical unit10US 6,036,838 ADeutsches Zentrum fuer Luft- und Raumfahrt e. V. · 2000
- Gas sensor, gas sensor system, and controlling method thereof8US 7,568,375 B2Honda Motor Co., Ltd. · 2009
- Fuel cell system and method7US 6,696,190 B2Plug Power Inc. · 2004