H01M 2250/20
Fuel cells in motive systems
Official title: Fuel cells in motive systems, e.g. vehicle, ship, plane
H01M2250/20 (Fuel cells in motive systems) appears on 3,977 US grants and 5,828 published applications in this corpus.
Search patents in H01M- Granted patents
- 3,977
- Published applications
- 5,828
- Assignees
- 948
- Inventors
- 7,695
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 9 | 0 |
| 1998 | 7 | 0 |
| 1999 | 12 | 0 |
| 2000 | 17 | 0 |
| 2001 | 30 | 19 |
| 2002 | 29 | 78 |
| 2003 | 51 | 80 |
| 2004 | 40 | 106 |
| 2005 | 47 | 115 |
| 2006 | 54 | 126 |
| 2007 | 56 | 137 |
| 2008 | 56 | 145 |
| 2009 | 57 | 161 |
| 2010 | 95 | 184 |
| 2011 | 102 | 109 |
| 2012 | 114 | 111 |
| 2013 | 123 | 140 |
| 2014 | 145 | 157 |
| 2015 | 133 | 294 |
| 2016 | 147 | 368 |
| 2017 | 217 | 318 |
| 2018 | 237 | 307 |
| 2019 | 297 | 255 |
| 2020 | 290 | 296 |
| 2021 | 255 | 318 |
| 2022 | 304 | 415 |
| 2023 | 322 | 487 |
| 2024 | 230 | 395 |
| 2025 | 288 | 407 |
| 2026 | 203 | 300 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel cell vehicle with differential pressure flow meter for humidity measurement6 Oct 2026US 12,752,667 B2Ford Global Technologies, LLC
- Fuel cell vehicle and controlling method thereof6 Oct 2026US 12,752,668 B2Hyundai Motor Company
- Reactant-transport engineering for high-power direct liquid-fuel/oxidant fuel cells6 Oct 2026US 12,755,987 B2Washington University
- Fuel-cell exhaust system6 Oct 2026US 12,755,991 B2Purem GmbH
- Fuel cell power control system and method6 Oct 2026US 12,755,994 B2Hyundai Motor Cpompany
- Advanced power electronic circuit for fuel cell vehicles enabling independent cooling of various systems8 Oct 2026US 2026/0307542 A1Ford Global Technologies, LLC
- Wall element, especially for a safe chamber, as well as a safe chamber, an aircraft component and an aircraft equipped therewith8 Oct 2026US 2026/0307817 A1
- Purge air sealing valve8 Oct 2026US 2026/0309238 A1GM Global Technology Operations LLC
- Method for manufacturing a catalyst layer, and such a layer, as well as a fuel cell module, assembly, power unit, and vehicle incorporating the same8 Oct 2026US 2026/0312079 A1
- Fluid connector structure and hydrogen line for fuel cell8 Oct 2026US 2026/0312086 A1Nifco Inc.
Most cited
By later US patents
- Method and system for supplying hydrogen for use in fuel cells190US 6,348,278 B1Mobil Oil Corporation · 2002
- Hybrid drive for hydraulic power190US 7,900,724 B2Terex-Telelect, Inc. · 2011
- Power generation system and method129US 6,915,869 B2Delphi Technologies, Inc. · 2005
- Arrangement of a drive unit in an electric vehicle114US 5,641,031 ADaimler-Benz Aktiengesellschaft · 1997
- Off-board station and an electricity exchanging system suitable for use with a mobile vehicle power system114US 6,380,637 B1Ztek Corporation · 2002