H01M 8/04953
Of auxiliary devices
Official title: {of auxiliary devices, e.g. batteries, capacitors}
H01M8/04953 (Of auxiliary devices) appears on 26 US grants and 40 published applications in this corpus.
Search patents in H01M- Granted patents
- 26
- Published applications
- 40
- Assignees
- 23
- Inventors
- 114
- Latest grant
- 30 Jul 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 2 |
| 2007 | 0 | 3 |
| 2008 | 0 | 1 |
| 2009 | 0 | 2 |
| 2010 | 2 | 3 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 2 | 2 |
| 2015 | 4 | 2 |
| 2016 | 0 | 3 |
| 2017 | 0 | 2 |
| 2018 | 2 | 5 |
| 2019 | 1 | 2 |
| 2020 | 4 | 0 |
| 2021 | 1 | 1 |
| 2022 | 2 | 3 |
| 2023 | 2 | 1 |
| 2024 | 1 | 3 |
| 2025 | 0 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Device for diagnosing valve failure of fuel cell system30 Jul 2024US 12,051,834 B2Hyundai Motor Company
- Fuel cell system with a vibration generator, and method for operating a fuel cell system with a vibration generator3 Oct 2023US 11,777,116 B2Robert Bosch GmbH
- Fuel cell system and control method at time of starting-up fuel cell system26 Sep 2023US 11,769,891 B2Honda Motor Co., Ltd.
- Fuel cell unit20 Sep 2022US 11,450,874 B2Toyota Jidosha Kabushiki Kaisha
- Fuel cell system, method of controlling fuel cell system, and fuel cell system-mounted vehicle5 Jul 2022US 11,380,913 B2Toyota Jidosha Kabushiki Kaisha
- Fuel cell vehicle and method of controlling the same9 Apr 2026US 2026/0100389 A1Hyundai Motor Company
- Fuel cell module4 Dec 2025US 2025/0372681 A1Kabushiki Kaisha Toyota Jidoshokki
- Device for diagnosing valve failure of fuel cell system17 Oct 2024US 2024/0347748 A1Hyundai Motor Company
- Method and module for controlling a valve for regulating the internal pressure of a fluid circuit in an electrochemical device22 Aug 2024US 2024/0282986 A1Safran Power Units
- Fuel cell system and method of controlling the same18 Apr 2024US 2024/0128484 A1Hyundai Motor Company
Most cited
By later US patents
- Generator system utilizing a fuel cell62US 4,839,574 AFuji Electric Co., Ltd. · 1989
- Cell discharging circuit for a fuel cell9US 5,105,142 AFuji Electric Co., Ltd. · 1992
- Shutdown operations for a sealed anode fuel cell system8US 8,048,579 B2GM Global Technology Operations LLC · 2011
- Induction heating device for fuel cell system5US 8,791,397 B2Hyundai Motor Company · 2014
- Method of shutting down fuel cell system5US 9,093,679 B2Honda Motor Co., Ltd. · 2015