H01M 8/04731
Of other components of a fuel cell or fuel cell stacks
Official title: {of other components of a fuel cell or fuel cell stacks}
H01M8/04731 (Of other components of a fuel cell or fuel cell stacks) appears on 285 US grants and 389 published applications in this corpus.
Search patents in H01M- Granted patents
- 285
- Published applications
- 389
- Assignees
- 157
- Inventors
- 840
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 3 |
| 2003 | 5 | 9 |
| 2004 | 5 | 5 |
| 2005 | 3 | 22 |
| 2006 | 5 | 21 |
| 2007 | 10 | 25 |
| 2008 | 7 | 18 |
| 2009 | 7 | 23 |
| 2010 | 12 | 25 |
| 2011 | 6 | 14 |
| 2012 | 17 | 12 |
| 2013 | 20 | 13 |
| 2014 | 18 | 17 |
| 2015 | 17 | 16 |
| 2016 | 11 | 17 |
| 2017 | 11 | 21 |
| 2018 | 9 | 20 |
| 2019 | 17 | 23 |
| 2020 | 20 | 16 |
| 2021 | 21 | 10 |
| 2022 | 16 | 12 |
| 2023 | 12 | 19 |
| 2024 | 9 | 11 |
| 2025 | 10 | 9 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for cooling a fuel cell assembly2 Jun 2026US 12,646,726 B2Liebherr-Aerospace Toulouse SAS
- Electrochemical cell magnetic electrocatalyst19 May 2026US 12,633,555 B2Robert Bosch GmbH
- Hydrogen fuel cell cooling10 Mar 2026US 12,573,644 B2Caterpillar Inc.
- Heat insulation structure for high-temperature reaction room10 Mar 2026US 12,573,646 B2Mitsubishi Heavy Industries, Ltd.
- Fuel tank heat dissipation system for fuel cell cooling3 Feb 2026US 12,542,287 B2ZeroAvia, Inc.
- Fuel cell system and control method therefor8 Oct 2026US 2026/0312102 A1Nissan Motor Co., Ltd.
- Method for the model-based operation of a coolant system, control unit, and fuel cell system13 Aug 2026US 2026/0237700 A1Robert Bosch GmbH
- Solid-state hydrogen storage device18 Jun 2026US 2026/0171444 A1Hyundai Motor Company
- Fuel cell system23 Apr 2026US 2026/0112666 A1Aisan Kogyo Kabushiki Kaisha
- Fuel cell system and method for controlling a heating current for temperature control of a fuel cell stack of a fuel cell system16 Apr 2026US 2026/0106193 A1Robert Bosch GmbH
Most cited
By later US patents
- Hydrocarbon fueled solid polymer fuel cell electric power generation system168US 5,360,679 ABallard Power Systems Inc. · 1994
- Temperature regulating system for a fuel cell powered vehicle97US 6,186,254 B1Xcelliss Fuel Cell Engines Inc. · 2001
- Fuel cell with proton conducting membrane97US 6,492,047 B1Ramot University Authority for Applied Research and Industrial Development Ltd. · 2002
- Fuel-cells generator system and method of generating electricity from fuel cells75US 5,925,476 AToyota Jidosha Kabushiki Kaisha · 1999
- Fuel cell with proton conducting membrane with a pore size less than 30 nm56US 6,447,943 B1Ramot University Authority for Applied Research and Industrial Development Ltd. · 2002