H01M 8/043
Applied during specific periods
Official title: applied during specific periods
H01M8/043 (Applied during specific periods) appears on 1,178 US grants and 1,702 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,178
- Published applications
- 1,702
- Assignees
- 338
- Inventors
- 2,615
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 3 | 0 |
| 1999 | 6 | 0 |
| 2000 | 10 | 0 |
| 2001 | 8 | 10 |
| 2002 | 17 | 46 |
| 2003 | 20 | 52 |
| 2004 | 24 | 56 |
| 2005 | 29 | 67 |
| 2006 | 30 | 59 |
| 2007 | 20 | 54 |
| 2008 | 28 | 60 |
| 2009 | 23 | 65 |
| 2010 | 37 | 83 |
| 2011 | 46 | 60 |
| 2012 | 39 | 40 |
| 2013 | 44 | 54 |
| 2014 | 44 | 40 |
| 2015 | 46 | 53 |
| 2016 | 42 | 61 |
| 2017 | 56 | 79 |
| 2018 | 49 | 82 |
| 2019 | 73 | 83 |
| 2020 | 79 | 68 |
| 2021 | 65 | 76 |
| 2022 | 86 | 86 |
| 2023 | 81 | 124 |
| 2024 | 43 | 83 |
| 2025 | 64 | 88 |
| 2026 | 33 | 73 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hybrid hydrogen fuel cell combustor power system6 Oct 2026US 12,755,989 B2Caterpillar Inc.
- Method for controlling a drying process of a fuel cell system6 Oct 2026US 12,755,992 B2Robert Bosch GmbH
- Hydrogen leak sensing device and method for fuel cell vehicle29 Sep 2026US 12,749,695 B2Hyundai Motor Company
- Connected fuel cell vehicle predictive freeze wake scheduling18 Aug 2026US 12,712,189 B2Ford Global Technologies, LLC
- Fuel cell stack diagnostics using crowdsourcing for connected fuel cell vehicle4 Aug 2026US 12,700,601 B2Ford Global Technologies, LLC
- Managing a fuel cell system in a fuel cell vehicle8 Oct 2026US 2026/0312087 A1Volvo Truck Corporation
- Conditioning method and conditioning device8 Oct 2026US 2026/0312092 A1Robert Bosch GmbH
- Solid polymer fuel battery activation method1 Oct 2026US 2026/0302286 A1Honda Motor Co., Ltd.
- Fuel cell system and control method thereof1 Oct 2026US 2026/0302294 A1Honda Motor Co., Ltd.
- Apparatus for Controlling Valve of Fuel Cell System, Method Thereof and Vehicle Including Same1 Oct 2026US 2026/0302296 A1Hyundai Motor Company
Most cited
By later US patents
- Method and apparatus for monitoring fuel cell performance359US 5,170,124 AMinister of National Defence of Her Majesty's Canadian Government · 1992
- Fuel cell gas management system240US 6,013,385 AEmprise Corporation · 2000
- Purge gas protected transportable pressurized fuel cell modules and their operation in a power plant195US 5,573,867 AWestinghouse Electric Corp. · 1996
- Method and system for supplying hydrogen for use in fuel cells190US 6,348,278 B1Mobil Oil Corporation · 2002
- Method for controlling a fuel cell141US 4,904,548 AFuji Electric Co., Ltd. · 1990