F02M 21/0203
Characterised by the type of gaseous fuel
Official title: {characterised by the type of gaseous fuel}
F02M21/0203 (Characterised by the type of gaseous fuel) appears on 1,140 US grants and 1,307 published applications in this corpus.
Search patents in F02M- Granted patents
- 1,140
- Published applications
- 1,307
- Assignees
- 513
- Inventors
- 2,342
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 5 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 5 | 0 |
| 1983 | 4 | 0 |
| 1984 | 5 | 0 |
| 1985 | 9 | 0 |
| 1986 | 4 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 1 | 0 |
| 1991 | 10 | 0 |
| 1992 | 6 | 0 |
| 1993 | 4 | 0 |
| 1994 | 12 | 0 |
| 1995 | 17 | 0 |
| 1996 | 12 | 0 |
| 1997 | 13 | 0 |
| 1998 | 14 | 0 |
| 1999 | 13 | 0 |
| 2000 | 14 | 0 |
| 2001 | 18 | 3 |
| 2002 | 14 | 19 |
| 2003 | 16 | 21 |
| 2004 | 18 | 37 |
| 2005 | 21 | 30 |
| 2006 | 30 | 26 |
| 2007 | 22 | 24 |
| 2008 | 26 | 41 |
| 2009 | 17 | 40 |
| 2010 | 22 | 33 |
| 2011 | 22 | 50 |
| 2012 | 31 | 42 |
| 2013 | 27 | 53 |
| 2014 | 41 | 96 |
| 2015 | 53 | 74 |
| 2016 | 51 | 75 |
| 2017 | 65 | 61 |
| 2018 | 61 | 83 |
| 2019 | 70 | 53 |
| 2020 | 45 | 39 |
| 2021 | 37 | 36 |
| 2022 | 41 | 45 |
| 2023 | 59 | 67 |
| 2024 | 55 | 82 |
| 2025 | 71 | 95 |
| 2026 | 42 | 82 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Vented methane gas mitigation system with failure detection6 Oct 2026US 12,753,731 B1Caterpillar Inc.
- 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 System for an Internal Combustion Engine8 Oct 2026US 2026/0309107 A1Robert Bosch GmbH
- Fuel supply system, and vehicle1 Oct 2026US 2026/0298160 A1Isuzu Motors Limited
- 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
Most cited
By later US patents
- System comprising duel-fuel and after treatment for heavy-heavy duty diesel (HHDD) engines180US 10,287,943 B1Clean Power Technologies, LLC · 2019
- Remedial system: a pollution control device for utilizing and abating volatile organic compounds178US 8,776,734 B1Innovative Environmental Solutions, LLC · 2014
- Reformed natural gas for powering an internal combustion engine177US 6,508,209 B12003
- Fuel-conditioning skid147US 7,442,239 B2Ingersoll-Rand Energy Systems Corporation · 2008
- LNG delivery system for gas powered vehicles117US 5,127,230 AMinnesota Valley Engineering, Inc. · 1992