H01M 8/04626
Of auxiliary devices
Official title: {of auxiliary devices, e.g. batteries, capacitors}
H01M8/04626 (Of auxiliary devices) appears on 310 US grants and 466 published applications in this corpus.
Search patents in H01M- Granted patents
- 310
- Published applications
- 466
- Assignees
- 143
- Inventors
- 804
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 3 |
| 2002 | 4 | 14 |
| 2003 | 6 | 17 |
| 2004 | 11 | 15 |
| 2005 | 7 | 22 |
| 2006 | 7 | 30 |
| 2007 | 10 | 35 |
| 2008 | 4 | 31 |
| 2009 | 13 | 27 |
| 2010 | 20 | 24 |
| 2011 | 15 | 12 |
| 2012 | 23 | 18 |
| 2013 | 22 | 12 |
| 2014 | 16 | 11 |
| 2015 | 9 | 12 |
| 2016 | 9 | 7 |
| 2017 | 9 | 5 |
| 2018 | 9 | 15 |
| 2019 | 6 | 21 |
| 2020 | 11 | 16 |
| 2021 | 18 | 19 |
| 2022 | 14 | 18 |
| 2023 | 17 | 24 |
| 2024 | 10 | 18 |
| 2025 | 19 | 20 |
| 2026 | 10 | 20 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell vehicle and controlling method thereof6 Oct 2026US 12,752,668 B2Hyundai Motor Company
- Electric energy managing system and method thereof29 Sep 2026US 12,746,853 B2Industrial Technology Research Institute
- Method of controlling a cooling fan for a fuel cell stack8 Sep 2026US 12,731,802 B2Hyundai Motor Company
- Fuel cell electric vehicle and method of controlling same28 Jul 2026US 12,695,104 B2Hyundai Motor Company
- System and method for renewable energy based EV charging and hydrogen fueling30 Jun 2026US 12,668,144 B2BWR Innovations LLC
- 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.
- Fuel Cell System And Method Of Returning From Idle Stop Operation To Normal Operation3 Sep 2026US 2026/0260917 A1Honda Motor Co., Ltd.
- Method for Controlling Stack and Battery Output and Apparatus Therefor27 Aug 2026US 2026/0249745 A1Hyundai Motor Company
- A computer-implemented method for controlling a cooling system of a power assembly2 Jul 2026US 2026/0184234 A1Volvo Truck Corporation
Most cited
By later US patents
- Power supply apparatus with fuel cell and method of controlling the same162US 7,883,808 B2Hitachi, Ltd. · 2011
- Method for controlling a fuel cell141US 4,904,548 AFuji Electric Co., Ltd. · 1990
- Fuel cell system controller115US 6,495,277 B1IdaTech, LLC · 2002
- Fuel system using redox flow battery108US 8,778,552 B224M Technologies, Inc. · 2014
- Fuel cell/battery hybrid power system for vehicle104US 5,631,532 AAisin Aw Co., Ltd. · 1997