H01M 8/04567
Of auxiliary devices
Official title: {of auxiliary devices, e.g. batteries, capacitors}
H01M8/04567 (Of auxiliary devices) appears on 201 US grants and 266 published applications in this corpus.
Search patents in H01M- Granted patents
- 201
- Published applications
- 266
- Assignees
- 113
- Inventors
- 511
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 12 |
| 2003 | 4 | 15 |
| 2004 | 6 | 11 |
| 2005 | 9 | 20 |
| 2006 | 11 | 19 |
| 2007 | 7 | 21 |
| 2008 | 5 | 14 |
| 2009 | 8 | 16 |
| 2010 | 13 | 14 |
| 2011 | 11 | 13 |
| 2012 | 10 | 8 |
| 2013 | 9 | 2 |
| 2014 | 13 | 5 |
| 2015 | 4 | 4 |
| 2016 | 4 | 2 |
| 2017 | 4 | 7 |
| 2018 | 2 | 7 |
| 2019 | 7 | 9 |
| 2020 | 7 | 6 |
| 2021 | 4 | 10 |
| 2022 | 11 | 8 |
| 2023 | 12 | 19 |
| 2024 | 8 | 9 |
| 2025 | 9 | 9 |
| 2026 | 9 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell power control system and method6 Oct 2026US 12,755,994 B2Hyundai Motor Cpompany
- Electrical energy supply system for mobile platforms and vehicle having an electrical energy supply system1 Sep 2026US 12,725,815 B2Airbus SAS
- Vehicle25 Aug 2026US 12,719,072 B2Toyota Jidosha Kabushiki Kaisha
- Redox flow battery system and method for operating redox flow battery14 Jul 2026US 12,683,175 B2Sumitomo Electric Industries, Ltd.
- Electrical power generating system16 Jun 2026US 12,658,711 B2BWR Innovations LLC
- Electrical Power Generating System1 Oct 2026US 2026/0302793 A1BWR Innovations LLC
- Remotely Controlled Electrical Power Generating System16 Jul 2026US 2026/0204917 A1BWR Innovations LLC
- Method of controlling opening degree of air flow rate control valve in fuel cell stack and apparatus4 Jun 2026US 2026/0155413 A1Hyundai Motor Company
- Control method for fuel cell system, control program for fuel cell system, fuel cell system, and monogeneration device5 Mar 2026US 2026/0066319 A1Yanmar Holdings Co., Ltd.
- Method for restoring performance20 Nov 2025US 2025/0357513 A1LIVA Power Management Systems GmbH
Most cited
By later US patents
- Power supply apparatus with fuel cell and method of controlling the same162US 7,883,808 B2Hitachi, Ltd. · 2011
- Hybrid fuel battery system and the operation method thereof97US 5,334,463 ASanyo Electric Co., Ltd. · 1994
- System and method for controlling the humidity level of a fuel cell92US 6,376,111 B1General Motors Corporation · 2002
- Power supply system, electric vehicle with power supply system mounted thereon, and method of regulating amount of fuel supply90US 5,964,309 AAisin Aw Co., Ltd. · 1999
- Control unit of fuel cell generating system65US 4,883,724 AFuji Electric Co., Ltd. · 1989