H01M 8/04858
Electric variables
H01M8/04858 (Electric variables) appears on 1,848 US grants and 2,639 published applications in this corpus.
Search patents in H01M- Granted patents
- 1,848
- Published applications
- 2,639
- Assignees
- 535
- Inventors
- 3,808
- 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 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 2 | 0 |
| 1995 | 0 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 5 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 8 | 11 |
| 2002 | 15 | 35 |
| 2003 | 28 | 46 |
| 2004 | 26 | 82 |
| 2005 | 23 | 100 |
| 2006 | 42 | 123 |
| 2007 | 32 | 114 |
| 2008 | 30 | 96 |
| 2009 | 52 | 106 |
| 2010 | 69 | 144 |
| 2011 | 74 | 88 |
| 2012 | 86 | 95 |
| 2013 | 85 | 67 |
| 2014 | 93 | 80 |
| 2015 | 74 | 95 |
| 2016 | 73 | 93 |
| 2017 | 66 | 102 |
| 2018 | 86 | 116 |
| 2019 | 101 | 122 |
| 2020 | 102 | 112 |
| 2021 | 111 | 130 |
| 2022 | 117 | 149 |
| 2023 | 151 | 196 |
| 2024 | 85 | 117 |
| 2025 | 100 | 110 |
| 2026 | 70 | 110 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fuel cell system and fuel cell vehicle6 Oct 2026US 12,752,643 B2Kabushiki Kaisha Toyota Jidoshokki
- Fuel cell vehicle and controlling method thereof6 Oct 2026US 12,752,668 B2Hyundai Motor Company
- Method for controlling a drying process of a fuel cell system6 Oct 2026US 12,755,992 B2Robert Bosch GmbH
- Fuel cell power control system and method6 Oct 2026US 12,755,994 B2Hyundai Motor Cpompany
- Power management system6 Oct 2026US 12,756,197 B2Techwin Co., Ltd.
- Conditioning method and conditioning device8 Oct 2026US 2026/0312092 A1Robert Bosch GmbH
- Fuel cell system8 Oct 2026US 2026/0312094 A1Aisan Kogyo Kabushiki Kaisha
- Fuel Cell System8 Oct 2026US 2026/0312096 A1Hyundai Motor Company
- 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
Most cited
By later US patents
- Power supply apparatus220US 6,882,131 B1Matsushita Electric Industrial Co., Ltd. · 2005
- Surface replica fuel cell for micro fuel cell electrical power pack208US 5,759,712 A1998
- Automatic voltage imbalance detector205US 4,424,491 AThe United States of America as represented by the United States Department of Energy · 1984
- Power supply system and electronic device196US 7,538,451 B2Sony Corporation · 2009
- Fuel cell system and control method182US 7,064,967 B2Hitachi Home & Life Solutions, Inc. · 2006