H01M 2250/40
Combination of fuel cells with other energy production systems
H01M2250/40 (Combination of fuel cells with other energy production systems) appears on 524 US grants and 864 published applications in this corpus.
Search patents in H01M- Granted patents
- 524
- Published applications
- 864
- Assignees
- 350
- Inventors
- 1,713
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 16 |
| 2003 | 4 | 23 |
| 2004 | 12 | 30 |
| 2005 | 15 | 32 |
| 2006 | 22 | 29 |
| 2007 | 20 | 47 |
| 2008 | 17 | 28 |
| 2009 | 16 | 41 |
| 2010 | 20 | 40 |
| 2011 | 23 | 26 |
| 2012 | 20 | 41 |
| 2013 | 27 | 30 |
| 2014 | 29 | 59 |
| 2015 | 14 | 54 |
| 2016 | 31 | 34 |
| 2017 | 39 | 32 |
| 2018 | 31 | 36 |
| 2019 | 32 | 17 |
| 2020 | 25 | 24 |
| 2021 | 8 | 15 |
| 2022 | 28 | 23 |
| 2023 | 16 | 40 |
| 2024 | 19 | 42 |
| 2025 | 23 | 56 |
| 2026 | 17 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Electric energy managing system and method thereof29 Sep 2026US 12,746,853 B2Industrial Technology Research Institute
- Photovoltaic power generation systems and methods regarding same8 Sep 2026US 12,732,131 B2Brilliant Light Power, Inc.
- Outlet power architecture for vehicle1 Sep 2026US 12,722,496 B2GM Global Technology Operations LLC
- Power net apparatus of a fuel cell and control method thereof14 Jul 2026US 12,679,229 B2Hyundai Motor Company
- Afterburners including methods of making and operating7 Jul 2026US 12,676,325 B2WATT Fuel Cell Corp.
- Wall element, especially for a safe chamber, as well as a safe chamber, an aircraft component and an aircraft equipped therewith8 Oct 2026US 2026/0307817 A1
- Fuel cell system8 Oct 2026US 2026/0312094 A1Aisan Kogyo Kabushiki Kaisha
- Fuel cell vehicle and regenerative electrical power consumption method for fuel cell vehicle1 Oct 2026US 2026/0296225 A1Honda Motor Co., Ltd.
- Afterburners including methods of making and operating1 Oct 2026US 2026/0302276 A1WATT Fuel Cell Corp.
- Apparatus for heat transfer between, within, and amongst electrochemical cells, electrochemical cell stacks, and thermochemical reactors, such as a carbon reactors, in carbon-oxygen batteries as well as other devices and uses thereof24 Sep 2026US 2026/0290859 A1Noon Energy
Most cited
By later US patents
- Apparatus and method for heating subterranean formations using fuel cells241US 6,684,948 B12004
- Modular hybrid low emissions power for hydrocarbon extraction229US 10,008,880 B2BJ Services Company · 2018
- Method and system for supplying hydrogen for use in fuel cells190US 6,348,278 B1Mobil Oil Corporation · 2002
- Energy supply system for optimizing energy cost, energy consumption and emission of pollutants187US 5,432,710 AOsaka Gas Co., Ltd. · 1995
- Fuel cell system controller115US 6,495,277 B1IdaTech, LLC · 2002