H01M 8/2495
Of fuel cells of different types
Official title: of fuel cells of different types
H01M8/2495 (Of fuel cells of different types) appears on 58 US grants and 67 published applications in this corpus.
Search patents in H01M- Granted patents
- 58
- Published applications
- 67
- Assignees
- 50
- Inventors
- 164
- Latest grant
- 19 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 1 | 4 |
| 2003 | 1 | 1 |
| 2004 | 0 | 7 |
| 2005 | 1 | 3 |
| 2006 | 3 | 2 |
| 2007 | 1 | 6 |
| 2008 | 4 | 4 |
| 2009 | 2 | 3 |
| 2010 | 5 | 4 |
| 2011 | 5 | 1 |
| 2012 | 0 | 1 |
| 2013 | 2 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 2 |
| 2016 | 1 | 2 |
| 2017 | 1 | 1 |
| 2018 | 1 | 6 |
| 2019 | 1 | 0 |
| 2020 | 4 | 3 |
| 2021 | 2 | 0 |
| 2022 | 1 | 1 |
| 2023 | 1 | 9 |
| 2024 | 3 | 4 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell power plant heat exchanger19 May 2026US 12,633,550 B2Honda Motor Co., Ltd.
- Fuel cell deployment systems and apparatus13 Jan 2026US 12,525,628 B2Microsoft Technology Licensing, LLC
- Hybrid fuel cell system for load following and backup in a microgrid and method of operating thereof23 Jul 2024US 12,046,897 B2Bloom Energy Corporation
- Fuel cell deployment systems and apparatus21 May 2024US 11,990,653 B2Microsoft Technology Licensing, LLC
- Reversible fuel cell system architecture5 Mar 2024US 11,923,578 B2Cummins Inc.
- Redox flow battery7 Nov 2024US 2024/0372123 A1Mitsubishi Heavy Industries, Ltd.
- Fuel cell deployment systems and apparatus8 Aug 2024US 2024/0266565 A1Microsoft Technology Licensing, LLC
- Solid oxide fuel cell stack for an aircraft engine9 May 2024US 2024/0154144 A1Airbus Operations GmbH
- Fuel cell-based multiple power supply system8 Feb 2024US 2024/0047717 A1Fci
- Fuel cell power plant7 Sep 2023US 2023/0282842 A1Honda Motor Co., Ltd.
Most cited
By later US patents
- Internal reforming fuel cell system requiring no recirculated cooling and providing a high fuel process gas utilization151US 4,917,971 AEnergy Research Corporation · 1990
- Indirect-fired gas turbine dual fuel cell power cycle108US 5,541,014 AThe United States of America as represented by the United States Department of Energy · 1996
- Power control system for a fuel cell powered vehicle94US 5,991,670 ADBB Fuel Cell Engines GmbH · 1999
- Power control system for a fuel cell powered vehicle86US 5,771,476 ADBB Fuel Cell Engines GmbH · 1998
- Fuel cell stacks for ultra-high efficiency power systems80US 6,458,477 B1Ztek Corporation · 2002