H01M 8/04805
Of fuel cell exhausts
Official title: {of fuel cell exhausts}
H01M8/04805 (Of fuel cell exhausts) appears on 92 US grants and 133 published applications in this corpus.
Search patents in H01M- Granted patents
- 92
- Published applications
- 133
- Assignees
- 53
- Inventors
- 262
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 3 |
| 2006 | 0 | 1 |
| 2007 | 1 | 2 |
| 2008 | 0 | 7 |
| 2009 | 2 | 4 |
| 2010 | 4 | 5 |
| 2011 | 1 | 5 |
| 2012 | 5 | 3 |
| 2013 | 2 | 3 |
| 2014 | 4 | 27 |
| 2015 | 10 | 5 |
| 2016 | 12 | 5 |
| 2017 | 7 | 7 |
| 2018 | 5 | 2 |
| 2019 | 3 | 3 |
| 2020 | 5 | 8 |
| 2021 | 4 | 6 |
| 2022 | 6 | 6 |
| 2023 | 11 | 9 |
| 2024 | 4 | 5 |
| 2025 | 4 | 9 |
| 2026 | 0 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Systems and methods to measure or control fuel cell stack excess hydrogen flow using ejector mixing state16 Dec 2025US 12,500,253 B2Cummins Inc.
- Carbon dioxide production from carbonate fuel cells18 Nov 2025US 12,476,267 B2FuelCell Energy, Inc.
- Systems and methods to measure or control fuel cell stack excess hydrogen flow using humidity5 Aug 2025US 12,381,238 B2Cummins Inc.
- Relight of a propulsion system with a fuel cell21 Jan 2025US 12,202,616 B2General Electric Company
- Anode exhaust processing for molten carbonate fuel cells22 Oct 2024US 12,126,063 B2ExxonMobil Technology and Engineering Company
- Electrochemical cell systems including particulate thermal storage material6 Aug 2026US 2026/0229563 A1Bloom Energy Corporation
- Fuel cell system28 May 2026US 2026/0149016 A1Toyota Boshoku Kabushiki Kaisha
- Fuel cell system including silicon species trapping material or silicon species tolerant catalyst and method of operating thereof14 May 2026US 2026/0135130 A1Bloom Energy Corporation
- Fuel cell system23 Apr 2026US 2026/0112667 A1Aisan Kogyo Kabushiki Kaisha
- Fuel cell exhaust dilution control16 Apr 2026US 2026/0106191 A1GM Global Technology Operations LLC
Most cited
By later US patents
- Method for reducing fuel cell output voltage to permit low power operation27US 4,202,933 AUnited Technologies Corporation · 1980
- Integrated power generation and chemical production using fuel cells19US 9,077,007 B2ExxonMobil Research and Engineering Company · 2015
- Integrated power generation and carbon capture using fuel cells14US 9,077,006 B2ExxonMobil Research and Engineering Company · 2015
- Derivation of control parameters of fuel cell systems for flexible fuel operation13US 8,211,583 B2Bloom Energy Corporation · 2012
- Integration of molten carbonate fuel cells with fermentation processes11US 9,520,607 B2ExxonMobil Research and Engineering Company · 2016