H01M 8/04373
Of auxiliary devices
Official title: {of auxiliary devices, e.g. reformers, compressors, burners}
H01M8/04373 (Of auxiliary devices) appears on 438 US grants and 634 published applications in this corpus.
Search patents in H01M- Granted patents
- 438
- Published applications
- 634
- Assignees
- 185
- Inventors
- 1,114
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 4 |
| 2002 | 3 | 12 |
| 2003 | 9 | 11 |
| 2004 | 9 | 20 |
| 2005 | 7 | 33 |
| 2006 | 8 | 24 |
| 2007 | 14 | 40 |
| 2008 | 7 | 36 |
| 2009 | 14 | 22 |
| 2010 | 14 | 41 |
| 2011 | 20 | 32 |
| 2012 | 26 | 24 |
| 2013 | 27 | 28 |
| 2014 | 28 | 32 |
| 2015 | 20 | 17 |
| 2016 | 17 | 22 |
| 2017 | 16 | 27 |
| 2018 | 23 | 29 |
| 2019 | 21 | 27 |
| 2020 | 28 | 26 |
| 2021 | 28 | 15 |
| 2022 | 25 | 18 |
| 2023 | 13 | 38 |
| 2024 | 10 | 18 |
| 2025 | 27 | 25 |
| 2026 | 12 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- SOE-SOFC-CCS hybrid system26 May 2026US 12,640,384 B2Fci
- Fuel-consuming power generator-based control method, control device and well-site stimulation method19 May 2026US 12,631,101 B2Yantai Jereh Petroleum Equipment & Technologies Co., Ltd.
- Fuel cell system and control method therefor8 Oct 2026US 2026/0312102 A1Nissan Motor Co., Ltd.
- Control method for fuel cell system and control device for fuel cell system1 Oct 2026US 2026/0302290 A1Nissan Motor Co., Ltd.
- Heat energy recovery system for fuel cell exhaust gas27 Aug 2026US 2026/0253921 A1Samjungtech Co., Ltd
- Fuel cell system13 Aug 2026US 2026/0237694 A1AVL List GmbH
- Thermal management system for a fuel cell vehicle25 Jun 2026US 2026/0175743 A1Hyundai Motor Company
Most cited
By later US patents
- Fuel cell power generation system138US 5,658,681 AAisin Aw Co., Ltd. · 1997
- Hybrid electrical power system114US 5,968,680 AAlliedSignal Inc. · 1999
- Direct methanol feed fuel cell and system113US 5,773,162 ACalifornia Institute of Technology · 1998
- Hybrid fuel battery system and the operation method thereof97US 5,334,463 ASanyo Electric Co., Ltd. · 1994
- Power supply system, electric vehicle with power supply system mounted thereon, and method of charging storage battery included in power supply system65US 6,158,537 AToyota Jidosha Kabushiki Kaisha · 2000