H01M 8/04097
With recycling of the reactants
Official title: {with recycling of the reactants (H01M8/04119, H01M8/04104 take precedence)}
H01M8/04097 (With recycling of the reactants) appears on 1,207 US grants and 1,786 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,207
- Published applications
- 1,786
- Assignees
- 423
- Inventors
- 2,715
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 3 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 4 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 9 | 0 |
| 2001 | 6 | 7 |
| 2002 | 12 | 38 |
| 2003 | 23 | 49 |
| 2004 | 19 | 53 |
| 2005 | 25 | 84 |
| 2006 | 31 | 71 |
| 2007 | 21 | 95 |
| 2008 | 26 | 79 |
| 2009 | 38 | 99 |
| 2010 | 60 | 76 |
| 2011 | 59 | 64 |
| 2012 | 69 | 51 |
| 2013 | 59 | 53 |
| 2014 | 57 | 95 |
| 2015 | 48 | 63 |
| 2016 | 58 | 81 |
| 2017 | 61 | 50 |
| 2018 | 49 | 62 |
| 2019 | 54 | 54 |
| 2020 | 63 | 74 |
| 2021 | 59 | 54 |
| 2022 | 53 | 71 |
| 2023 | 72 | 107 |
| 2024 | 36 | 111 |
| 2025 | 61 | 85 |
| 2026 | 31 | 60 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell system including ejector6 Oct 2026US 12,755,990 B2Versa Power Systems, Ltd.
- Method for operating a fuel cell system, and fuel cell system15 Sep 2026US 12,738,514 B2Robert Bosch GmbH
- Oxygen-enriched combustion for natural gas combined cycle operation4 Aug 2026US 12,697,580 B2ExxonMobil Technology and Engineering Company
- Fuel cell system and method for generating inert gas for a fuel cell system28 Jul 2026US 12,695,106 B2Airbus Operations GmbH
- Method for protecting components of a fuel cell system21 Jul 2026US 12,689,048 B2Robert Bosch GmbH
- Fuel cell system and control method therefor8 Oct 2026US 2026/0312102 A1Nissan Motor Co., Ltd.
- Co2 capture and hydrogen recovery from fuel cell anode off gas8 Oct 2026US 2026/0312104 A1Uop LLC
- Integration of fuel cell system and co2 capture unit for hydrogen production8 Oct 2026US 2026/0312105 A1Uop LLC
- Fuel cell system1 Oct 2026US 2026/0302293 A1Aisan Kogyo Kabushiki Kaisha
- Use of a fuel cell to decarbonize a hydrocarbon cracking system17 Sep 2026US 2026/0279863 A1Chevron Phillips Chemical Company LP
Most cited
By later US patents
- Process and system for converting carbonaceous feedstocks into energy without greenhouse gas emissions283US 6,187,465 B12001
- Fuel cell gas management system240US 6,013,385 AEmprise Corporation · 2000
- Solid oxide fuel cell generator with removable modular fuel cell stack configurations188US 5,741,605 AWestinghouse Electric Corp. · 1998
- Electrochemical fuel cell system with a regulated vacuum ejector for recirculation of the fluid fuel stream173US 5,441,821 ABallard Power Systems Inc. · 1995
- High temperature fuel cell power plant165US 7,097,925 B2QuestAir Technologies Inc. · 2006