H01M 8/04268
Heating of fuel cells during the start-up of the fuel cells
Official title: {Heating of fuel cells during the start-up of the fuel cells}
H01M8/04268 (Heating of fuel cells during the start-up of the fuel cells) appears on 463 US grants and 647 published applications in this corpus.
Search patents in H01M- Granted patents
- 463
- Published applications
- 647
- Assignees
- 200
- Inventors
- 1,208
- Latest grant
- 4 Aug 2026
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| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
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| 1992 | 0 | 0 |
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| 2001 | 2 | 6 |
| 2002 | 4 | 15 |
| 2003 | 4 | 18 |
| 2004 | 9 | 25 |
| 2005 | 8 | 30 |
| 2006 | 12 | 31 |
| 2007 | 13 | 30 |
| 2008 | 14 | 39 |
| 2009 | 16 | 47 |
| 2010 | 21 | 52 |
| 2011 | 35 | 29 |
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| 2015 | 20 | 35 |
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| 2017 | 25 | 15 |
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| 2023 | 23 | 37 |
| 2024 | 12 | 22 |
| 2025 | 23 | 24 |
| 2026 | 10 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Systems and methods for controlling the thermal management system in a fuel cell powertrain system16 Jun 2026US 12,658,459 B2Cummins Inc.
- Method for intelligent heating of a fuel cell system and vehicle9 Jun 2026US 12,649,390 B2Daimler Truck AG
- Heat management system for a fuel cell vehicle5 May 2026US 12,617,314 B2Volvo Construction Equipment AB
- Fuel cell system and control method therefor8 Oct 2026US 2026/0312102 A1Nissan Motor Co., Ltd.
- Thermal management system for a fuel cell vehicle24 Sep 2026US 2026/0290863 A1AB Volvo Penta
- Fuel cell system20 Aug 2026US 2026/0245929 A1Aisin Corporation
- Fuel cell system6 Aug 2026US 2026/0229567 A1Honda Motor Co., Ltd.
- Power supply system for a propulsion system of an aircraft25 Jun 2026US 2026/0179981 A1
Most cited
By later US patents
- Off-board station and an electricity exchanging system suitable for use with a mobile vehicle power system114US 6,380,637 B1Ztek Corporation · 2002
- High temperature fuel cell system and method of operating same76US 7,422,810 B2Bloom Energy Corporation · 2008
- Integrated solid oxide fuel cell mechanization and method of using for transportation industry applications69US 6,562,496 B2Bayerische Motoren Werke Aktiengesellschaft · 2003
- Electrochemical engine60US 6,195,999 B1General Motors Corporation · 2001
- Fuel cell power supply system56US 5,858,568 AZtek Corporation · 1999