F02M 25/03
Into the cylinder or the pre-combustion chamber
Official title: into the cylinder {or the pre-combustion chamber}
F02M25/03 (Into the cylinder or the pre-combustion chamber) appears on 227 US grants and 246 published applications in this corpus.
Search patents in F02M- Granted patents
- 227
- Published applications
- 246
- Assignees
- 100
- Inventors
- 436
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 5 | 0 |
| 2002 | 8 | 3 |
| 2003 | 4 | 4 |
| 2004 | 3 | 5 |
| 2005 | 1 | 4 |
| 2006 | 5 | 6 |
| 2007 | 4 | 7 |
| 2008 | 6 | 9 |
| 2009 | 5 | 8 |
| 2010 | 6 | 9 |
| 2011 | 6 | 8 |
| 2012 | 4 | 11 |
| 2013 | 7 | 13 |
| 2014 | 6 | 11 |
| 2015 | 9 | 9 |
| 2016 | 3 | 13 |
| 2017 | 6 | 20 |
| 2018 | 19 | 22 |
| 2019 | 28 | 17 |
| 2020 | 12 | 20 |
| 2021 | 23 | 14 |
| 2022 | 9 | 9 |
| 2023 | 7 | 9 |
| 2024 | 6 | 2 |
| 2025 | 4 | 7 |
| 2026 | 2 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Controller for internal combustion engine and non-transitory computer-readable storage medium storing program for internal combustion engine9 Jun 2026US 12,650,103 B2Toyota Jidosha Kabushiki Kaisha
- System and method for injecting condensate in cylinder of a reciprocating engine21 Apr 2026US 12,607,151 B2Innio Jenbacher GmbH & Co OG
- Hydrogen-fueled four-stroke internal combustion engine29 Jul 2025US 12,372,025 B2Dma Tech S.à R.L.
- Internal combustion engine and controller for internal combustion engine1 Apr 2025US 12,264,632 B2Toyota Jidosha Kabushiki Kaisha
- Methods and devices for reducing NOx emissions produced by diesel engines11 Feb 2025US 12,221,942 B2
- Feeding and exhaust system for internal combustion engine, or thermal unit, and respective method of operation13 Aug 2026US 2026/0235064 A1Rhapis S.R.L.
- Engine and operating strategy augmenting tumble flow to increase fuel-air mixing30 Jul 2026US 2026/0218671 A1Caterpillar Inc.
- Methods and Devices for Reducing NOx Emissions Produced by Diesel Engines2 Jul 2026US 2026/0185497 A1
- Method for controlling the injection of coolant into an internal combustion engine of a motor vehicle and related vehicle and computer program product25 Jun 2026US 2026/0177021 A1Ferrari S.P. A.
- Method for diagnosing a water injection system of an internal combustion engine of a hybrid electric vehicle, and hybrid electric vehicle19 Feb 2026US 2026/0049586 A1Dr. Ing. h,c.F. Porsche Aktiengesellschaft
Most cited
By later US patents
- Premixed charge compression ignition engine with optimal combustion control196US 6,276,334 B1Cummins Engine Company, Inc. · 2001
- Apparatus and method for reducing emissions in a dual combustion mode diesel engine156US 5,875,743 ASouthwest Research Institute · 1999
- Internal combustion engine102US 4,805,571 AHumphrey Cycle Engine Partners, L.P. · 1989
- Water injection amount control system for fuel and water injection engine89US 6,112,705 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 2000
- Method of hydrating the intake air of an internal combustion engine86US 6,698,387 B12004