F02D 19/0694
Operating with a plurality of fuels
Official title: {operating with a plurality of fuels}
F02D19/0694 (Operating with a plurality of fuels) appears on 282 US grants and 309 published applications in this corpus.
Search patents in F02D- Granted patents
- 282
- Published applications
- 309
- Assignees
- 107
- Inventors
- 479
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 3 | 0 |
| 2002 | 5 | 7 |
| 2003 | 3 | 0 |
| 2004 | 4 | 5 |
| 2005 | 2 | 3 |
| 2006 | 4 | 4 |
| 2007 | 2 | 7 |
| 2008 | 6 | 9 |
| 2009 | 4 | 12 |
| 2010 | 11 | 13 |
| 2011 | 12 | 18 |
| 2012 | 11 | 13 |
| 2013 | 10 | 24 |
| 2014 | 16 | 41 |
| 2015 | 26 | 16 |
| 2016 | 25 | 29 |
| 2017 | 12 | 15 |
| 2018 | 17 | 10 |
| 2019 | 15 | 20 |
| 2020 | 17 | 9 |
| 2021 | 11 | 6 |
| 2022 | 8 | 5 |
| 2023 | 10 | 5 |
| 2024 | 12 | 9 |
| 2025 | 12 | 15 |
| 2026 | 6 | 14 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Fuel system having dual fuel quill connector and quill connector installation method26 May 2026US 12,637,994 B2Caterpillar Inc.
- Fuel supply system for supplying a fuel emulsion to a fuel injection system of an engine14 Apr 2026US 12,601,305 B2Caterpillar Motoren GmbH & Co. KG
- Apparatus and method for regulating gaseous fuel pressure and mitigating emissions in an internal combustion engine system7 Apr 2026US 12,595,772 B2Cespira Canada LP
- Asymmetric fuel injection window and fuel metering window17 Mar 2026US 12,577,918 B2Caterpillar Inc.
- Systems and methods for at-cylinder fuel switching27 Jan 2026US 12,535,041 B2Caterpillar Inc.
- Dual fuel injector, design method therefor, and injection control method therefor27 Aug 2026US 2026/0251096 A1Weichai Power Co., Ltd.
- Fuel type detection for internal combustion engine6 Aug 2026US 2026/0226868 A1Caterpillar Inc.
- Dual fuel injector, engine, and control method for a dual fuel injector4 Jun 2026US 2026/0153058 A1Weichai Power Co., Ltd.
- Method of operating a hybrid ammonia-diesel compression ignition propulsion system and/or power generation system and controlling the power output and emissions thereof14 May 2026US 2026/0132750 A1Analytical Engineering, Inc.
- Dual fuel injector for injection control and fuel metering, and method for operating same7 May 2026US 2026/0126025 A1Caterpillar Inc.
Most cited
By later US patents
- Method and apparatus for operating a dual fuel internal combustion engine226US 7,627,416 B2Westport Power Inc. · 2009
- Dual fuel supply system for a direct-injection system of a diesel engine with on-board mixing169US 8,973,560 B2Dgc Industries Pty Ltd · 2015
- Dual fuel system for an internal combustion engine167US 9,212,643 B2Delia Ltd. · 2015
- Fuel blending system method and apparatus134US 5,469,830 ACessna Aircraft Company · 1995
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines129US 7,225,787 B2Massachusetts Institute of Technology · 2007