F02M 21/0206
Non-hydrocarbon fuels
Official title: {Non-hydrocarbon fuels, e.g. hydrogen, ammonia or carbon monoxide}
F02M21/0206 (Non-hydrocarbon fuels) appears on 361 US grants and 524 published applications in this corpus.
Search patents in F02M- Granted patents
- 361
- Published applications
- 524
- Assignees
- 211
- Inventors
- 929
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 1 | 4 |
| 2003 | 2 | 7 |
| 2004 | 5 | 10 |
| 2005 | 4 | 5 |
| 2006 | 13 | 12 |
| 2007 | 8 | 11 |
| 2008 | 6 | 19 |
| 2009 | 7 | 10 |
| 2010 | 7 | 17 |
| 2011 | 4 | 20 |
| 2012 | 14 | 12 |
| 2013 | 7 | 15 |
| 2014 | 11 | 17 |
| 2015 | 14 | 17 |
| 2016 | 15 | 14 |
| 2017 | 12 | 15 |
| 2018 | 9 | 8 |
| 2019 | 12 | 17 |
| 2020 | 9 | 9 |
| 2021 | 9 | 9 |
| 2022 | 9 | 23 |
| 2023 | 29 | 36 |
| 2024 | 35 | 66 |
| 2025 | 56 | 81 |
| 2026 | 34 | 70 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydrogen mixed-combustion electronic control device and power generation system using same15 Sep 2026US 12,736,014 B2Hitachi, Ltd.
- Injector for gaseous fuel8 Sep 2026US 12,729,660 B2Phinia Delphi Luxembourg Sarl
- Hydrogen engine1 Sep 2026US 12,723,558 B2Toyota Jidosha Kabushiki Kaisha
- Systems and methods for supplying gaseous ammonia to serially-connected ammonia cracking units1 Sep 2026US 12,723,559 B2First Ammonia Motors, Inc.
- Hydrogen supply device11 Aug 2026US 12,706,319 B2Toyota Jidosha Kabushiki Kaisha
- Hydrogen Supply System for an Internal Combustion Engine8 Oct 2026US 2026/0309107 A1Robert Bosch GmbH
- Integrated fuel supply and injection system suitable for ammonia-hydrogen blending1 Oct 2026US 2026/0298180 A1Tianjin University
- Enhanced feedstock reforming via electrical resistance heating24 Sep 2026US 2026/0285678 A1Blaze Energy Technologies Corporation
- Method for operating a tank unit, and tank unit for storing a gaseous fuel24 Sep 2026US 2026/0286918 A1Robert Bosch GmbH
- Gas fuel flow device and engine24 Sep 2026US 2026/0286920 A1Yanmar Holdings Co., Ltd.
Most cited
By later US patents
- Multifuel storage, metering and ignition system92US 7,628,137 B12009
- Internal combustion engine with SCR and integrated ammonia production68US 6,739,125 B1Collier Technologies, Inc. · 2004
- Self-regenerating system of removing oxygen and water impurities from hydrogen gas64US 4,343,770 ABillings Energy Corporation · 1982
- Advanced high efficiency, ultra-low emission, thermochemically recuperated reciprocating internal combustion engine55US 7,210,467 B2Gas Technology Institute · 2007
- Hydrogen gas fuel and management system for an internal combustion engine utilizing hydrogen gas fuel48US 5,293,857 A1994