F02D 19/0689
For in-cylinder direct injection
Official title: {for in-cylinder direct injection}
F02D19/0689 (For in-cylinder direct injection) appears on 409 US grants and 447 published applications in this corpus.
Search patents in F02D- Granted patents
- 409
- Published applications
- 447
- Assignees
- 138
- Inventors
- 665
- Latest grant
- 7 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 1 | 0 |
| 2001 | 4 | 1 |
| 2002 | 5 | 8 |
| 2003 | 4 | 5 |
| 2004 | 6 | 5 |
| 2005 | 3 | 5 |
| 2006 | 6 | 4 |
| 2007 | 9 | 26 |
| 2008 | 17 | 28 |
| 2009 | 16 | 32 |
| 2010 | 29 | 45 |
| 2011 | 22 | 42 |
| 2012 | 34 | 28 |
| 2013 | 32 | 28 |
| 2014 | 25 | 38 |
| 2015 | 25 | 26 |
| 2016 | 24 | 17 |
| 2017 | 18 | 16 |
| 2018 | 14 | 6 |
| 2019 | 13 | 16 |
| 2020 | 16 | 11 |
| 2021 | 9 | 11 |
| 2022 | 6 | 5 |
| 2023 | 12 | 9 |
| 2024 | 10 | 10 |
| 2025 | 16 | 14 |
| 2026 | 3 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Systems and methods for at-cylinder fuel switching27 Jan 2026US 12,535,041 B2Caterpillar Inc.
- Fuel injector control strategy using fuel bulk modulus for fuel injector command determination13 Jan 2026US 12,523,182 B2Caterpillar Inc.
- Dual fuel system and operating strategy metering fuel via varied fuel pump output2 Dec 2025US 12,486,809 B2Caterpillar Inc.
- Dual fuel system and method feeding same fuel at two pressures to fuel injector2 Dec 2025US 12,486,810 B1Caterpillar Inc.
- Dual-fuel injector17 Sep 2026US 2026/0275946 A1Phinia Delphi Luxembourg Sarl
- Method and Apparatus for Non-Fossil Fuel Internal Combustion Engine27 Aug 2026US 2026/0251112 A1MayMaan Research, LLC
- Fuel for a compression engine20 Aug 2026US 2026/0243206 A1Eurenco France SAS
- Fuel type detection for internal combustion engine6 Aug 2026US 2026/0226868 A1Caterpillar Inc.
- Fueling system controls including detection of valve fully open condition16 Jul 2026US 2026/0201846 A1Cummins Inc.
Most cited
By later US patents
- 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
- Control system for two cycle direct injection engine and the method thereof165US 6,158,411 AFuji Jukogyo Kabushiki Kaisha · 2000
- System and method for engine starting160US 7,159,568 B1Ford Global Technologies, LLC · 2007
- Multiple operating mode engine and method of operation134US 6,561,157 B2Cummins Inc. · 2003
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines129US 7,225,787 B2Massachusetts Institute of Technology · 2007