H01M 8/04604
Power, energy, capacity or load
Official title: {Power, energy, capacity or load}
H01M8/04604 (Power, energy, capacity or load) appears on 944 US grants and 1,412 published applications in this corpus.
Search patents in H01M- Granted patents
- 944
- Published applications
- 1,412
- Assignees
- 338
- Inventors
- 2,288
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 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 | 3 | 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 | 4 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 2 | 0 |
| 2001 | 8 | 6 |
| 2002 | 7 | 27 |
| 2003 | 10 | 32 |
| 2004 | 20 | 52 |
| 2005 | 15 | 71 |
| 2006 | 22 | 75 |
| 2007 | 26 | 65 |
| 2008 | 23 | 68 |
| 2009 | 30 | 62 |
| 2010 | 43 | 82 |
| 2011 | 42 | 42 |
| 2012 | 44 | 48 |
| 2013 | 53 | 46 |
| 2014 | 49 | 65 |
| 2015 | 41 | 51 |
| 2016 | 39 | 43 |
| 2017 | 41 | 31 |
| 2018 | 40 | 46 |
| 2019 | 44 | 62 |
| 2020 | 43 | 47 |
| 2021 | 51 | 55 |
| 2022 | 55 | 78 |
| 2023 | 66 | 86 |
| 2024 | 31 | 63 |
| 2025 | 47 | 56 |
| 2026 | 34 | 53 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel cell vehicle and controlling method thereof6 Oct 2026US 12,752,668 B2Hyundai Motor Company
- Hybrid hydrogen fuel cell combustor power system6 Oct 2026US 12,755,989 B2Caterpillar Inc.
- Electric energy managing system and method thereof29 Sep 2026US 12,746,853 B2Industrial Technology Research Institute
- Fuel cell system and method for stopping power generation in fuel cell system15 Sep 2026US 12,738,515 B2Honda Motor Co., Ltd.
- Method of controlling a cooling fan for a fuel cell stack8 Sep 2026US 12,731,802 B2Hyundai Motor Company
- Fuel cell system8 Oct 2026US 2026/0312094 A1Aisan Kogyo Kabushiki Kaisha
- System and method for generating electricity using pyrolysis of plastics8 Oct 2026US 2026/0312100 A1
- Fuel cell vehicle and regenerative electrical power consumption method for fuel cell vehicle1 Oct 2026US 2026/0296225 A1Honda Motor Co., Ltd.
- High-temperature fuel cell system and method of operating it1 Oct 2026US 2026/0302279 A1Cellcentric GmbH & Co. KG
- Systems and methods for monitoring a fuel cell24 Sep 2026US 2026/0290865 A1Hyster-Yale Materials Handling, Inc.
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 power generation system138US 5,658,681 AAisin Aw Co., Ltd. · 1997
- Method and system for controlling output of fuel cell power generator135US 5,637,414 AFuji Electric Co., Ltd. · 1997
- Fuel cell system controller115US 6,495,277 B1IdaTech, LLC · 2002