F02D 23/02
The engines being of fuel-injection type
Official title: the engines being of fuel-injection type
F02D23/02 (The engines being of fuel-injection type) appears on 313 US grants and 270 published applications in this corpus.
Search patents in F02D- Granted patents
- 313
- Published applications
- 270
- Assignees
- 130
- Inventors
- 732
- Latest grant
- 22 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 0 | 0 |
| 1982 | 3 | 0 |
| 1983 | 1 | 0 |
| 1984 | 7 | 0 |
| 1985 | 11 | 0 |
| 1986 | 0 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 6 | 1 |
| 2002 | 5 | 8 |
| 2003 | 8 | 10 |
| 2004 | 13 | 11 |
| 2005 | 12 | 13 |
| 2006 | 10 | 16 |
| 2007 | 13 | 13 |
| 2008 | 10 | 15 |
| 2009 | 5 | 8 |
| 2010 | 6 | 19 |
| 2011 | 8 | 12 |
| 2012 | 15 | 13 |
| 2013 | 13 | 17 |
| 2014 | 8 | 10 |
| 2015 | 5 | 13 |
| 2016 | 19 | 25 |
| 2017 | 16 | 20 |
| 2018 | 24 | 11 |
| 2019 | 16 | 18 |
| 2020 | 21 | 7 |
| 2021 | 4 | 2 |
| 2022 | 4 | 4 |
| 2023 | 5 | 1 |
| 2024 | 2 | 2 |
| 2025 | 2 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Cold start catalyst bypass system22 Apr 2025US 12,281,606 B1Fca US LLC
- Systems and methods for purging fuel in a combustion engine4 Feb 2025US 12,215,640 B2Caterpillar Inc.
- Control system for diesel engine, diesel engine, and control method for diesel engine15 Oct 2024US 12,116,943 B2Mitsubishi Heavy Industries, Ltd.
- Hydrogen-powered opposed-piston engine13 Feb 2024US 11,898,448 B2Achates Power, Inc.
- Fuel supply device19 Sep 2023US 11,761,382 B2IHI Corporation
- Supercharging assist device and supercharging assist method27 Aug 2026US 2026/0251089 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
- Systems and methods for purging fuel in a combustion engine28 Nov 2024US 2024/0392730 A1Caterpillar Inc.
- Control system for diesel engine, diesel engine, and control method for diesel engine30 May 2024US 2024/0175402 A1Mitsubishi Heavy Industries, Ltd.
- Hydrogen-powered opposed-piston engine26 Jan 2023US 2023/0025982 A1Achates Power, Inc.
- Methods and systems for a turbo gas engine driven welder24 Nov 2022US 2022/0372923 A1Illinois Tool Works Inc.
Most cited
By later US patents
- Multivariable control for an engine131US 7,328,577 B2Honeywell International Inc. · 2008
- Optimized fuel management system for direct injection ethanol enhancement of gasoline engines129US 7,225,787 B2Massachusetts Institute of Technology · 2007
- Coordinated multivariable control of fuel and air in engines127US 7,275,374 B2Honeywell International Inc. · 2007
- Operating techniques for internal combustion engines116US 6,408,625 B1Cummins Engine Company, Inc. · 2002
- Apparatus for controlling internal combustion engine with supercharging device93US 6,279,551 B1Nissan Motor Co., Ltd. · 2001