F02D 41/3827
For diesel engines
Official title: {for diesel engines}
F02D41/3827 (For diesel engines) appears on 190 US grants and 119 published applications in this corpus.
Search patents in F02D- Granted patents
- 190
- Published applications
- 119
- Assignees
- 99
- Inventors
- 447
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 4 | 0 |
| 1997 | 3 | 0 |
| 1998 | 13 | 0 |
| 1999 | 7 | 0 |
| 2000 | 15 | 0 |
| 2001 | 12 | 3 |
| 2002 | 12 | 8 |
| 2003 | 9 | 2 |
| 2004 | 8 | 8 |
| 2005 | 3 | 3 |
| 2006 | 2 | 4 |
| 2007 | 2 | 5 |
| 2008 | 4 | 0 |
| 2009 | 4 | 6 |
| 2010 | 2 | 2 |
| 2011 | 2 | 2 |
| 2012 | 0 | 0 |
| 2013 | 1 | 5 |
| 2014 | 1 | 6 |
| 2015 | 2 | 4 |
| 2016 | 2 | 8 |
| 2017 | 7 | 7 |
| 2018 | 7 | 12 |
| 2019 | 9 | 10 |
| 2020 | 8 | 4 |
| 2021 | 7 | 5 |
| 2022 | 5 | 3 |
| 2023 | 3 | 4 |
| 2024 | 5 | 4 |
| 2025 | 2 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- System and method for adaptive control of air-to-fuel ratio18 Aug 2026US 12,710,014 B2Caterpillar Inc.
- Diagnosing and remediating fuel injection drift utilizing fuel rail pressure measurements19 May 2026US 12,631,153 B2Caterpillar Inc.
- Apparatus and method for injecting a pilot fuel into an internal combustion engine2 Sep 2025US 12,404,818 B2HPDI Technology LP
- Hydro-diesel engine system having separate agitation mixing and chemical mixing of hydrogen gas into liquid diesel fuel29 Jul 2025US 12,370,505 B2H2Diesel, Inc.
- Method and device for the use of biodiesel in internal combustion engines with diesel cycle24 Dec 2024US 12,173,663 B2Refuel Solutions S.R.L.
- System and method for adaptive control of air-to-fuel ratio18 Jun 2026US 2026/0168452 A1Caterpillar Inc.
- Apparatus and method for injecting a pilot fuel into an internal combustion engine12 Feb 2026US 2026/0043371 A1Cespira Canada Limited Partnership
- Hydro-diesel engine system having separate agitation mixing and chemical mixing of hydrogen gas into liquid diesel fuel10 Apr 2025US 2025/0114752 A1H2Diesel, Inc.
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture23 Jan 2025US 2025/0027440 A1ClearFlame Engines, Inc.
- Fuel Injection System and Method of Controlling a Fuel Injection System31 Oct 2024US 2024/0360800 A1Perkins Engines Company Limited
Most cited
By later US patents
- Optimized lambda and compression temperature control for compression ignition engines133US 6,273,076 B1Servojet Products International · 2001
- Method and apparatus for operating a diesel engine109US 5,771,686 AMercedes-Benz AG · 1998
- Exhaust gas purification device for an internal combustion engine105US 5,732,554 AToyota Jidosha Kabushiki Kaisha · 1998
- System and methods for electronic control of an accumulator fuel system101US 5,678,521 ACummins Engine Company, Inc. · 1997
- Spark-assist type self-ignition engine92US 6,293,246 B1Toyota Jidosha Kabushiki Kaisha · 2001