F02M 21/0215
Mixtures of gaseous fuels
Official title: {Mixtures of gaseous fuels; Natural gas; Biogas; Mine gas; Landfill gas}
F02M21/0215 (Mixtures of gaseous fuels) appears on 459 US grants and 507 published applications in this corpus.
Search patents in F02M- Granted patents
- 459
- Published applications
- 507
- Assignees
- 234
- Inventors
- 975
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 4 | 0 |
| 1997 | 7 | 0 |
| 1998 | 13 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 2 |
| 2002 | 12 | 10 |
| 2003 | 10 | 9 |
| 2004 | 5 | 13 |
| 2005 | 9 | 12 |
| 2006 | 5 | 7 |
| 2007 | 6 | 7 |
| 2008 | 11 | 17 |
| 2009 | 5 | 13 |
| 2010 | 5 | 13 |
| 2011 | 10 | 13 |
| 2012 | 11 | 15 |
| 2013 | 10 | 30 |
| 2014 | 13 | 52 |
| 2015 | 26 | 38 |
| 2016 | 23 | 41 |
| 2017 | 39 | 31 |
| 2018 | 33 | 53 |
| 2019 | 32 | 26 |
| 2020 | 28 | 23 |
| 2021 | 21 | 14 |
| 2022 | 22 | 10 |
| 2023 | 21 | 18 |
| 2024 | 11 | 11 |
| 2025 | 10 | 16 |
| 2026 | 7 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and system for processing gas in a gas storage facility for a gas tanker11 Aug 2026US 12,704,323 B2Gaztransport Et Technigaz
- Systems and method for vehicle thermal management28 Jul 2026US 12,692,812 B2
- Systems and methods for venting a pressurized fluid used as a fuel in an engine23 Jun 2026US 12,662,971 B2Caterpillar Inc.
- Fuel gas heating system19 May 2026US 12,631,158 B2Hanwha Ocean Co., Ltd.
- System and method for capturing and utilizing fugitive combustible gases during natural gas production28 Apr 2026US 12,612,885 B1Oasis Emission Consultants, Inc.
- Fuel supply system, and vehicle1 Oct 2026US 2026/0298160 A1Isuzu Motors Limited
- Multi-stage emission system for large displacement compression ignition non-road diesel, diesel-natural gas or alternative fuel mixture generator systems for emergency and non-emergency stationary power applications17 Sep 2026US 2026/0275892 A1Bluefin ESI, Inc.
- Flow device, internal combustion engine, and method for merging two fluid flows by way of such a flow device3 Sep 2026US 2026/0258771 A1Rolls-Royce Solutions GmbH
- Integrated monitoring platform with predictive analytics for natural gas production equipment6 Aug 2026US 2026/0227372 A1Oasis Emission Consultants, Inc.
- System and method for enhanced predictive failure analysis of natural gas equipment using ai-driven sensor and emissions data integration23 Jul 2026US 2026/0210925 A1Oasis Emission Consultants, Inc.
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
- 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
- Operating techniques for internal combustion engines116US 6,408,625 B1Cummins Engine Company, Inc. · 2002