F02B 9/02
Engines characterised by other types of ignition: with compression ignition
Official title: with compression ignition (engines characterised by fuel-air mixture compression with compression ignition F02B1/12; engines characterised by air compression and subsequent fuel addition with compression ignition F02B3/06)
F02B9/02 (Engines characterised by other types of ignition: with compression ignition) appears on 61 US grants and 72 published applications in this corpus.
Search patents in F02B- Granted patents
- 61
- Published applications
- 72
- Assignees
- 36
- Inventors
- 159
- Latest grant
- 7 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 2 |
| 2008 | 2 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 2 | 5 |
| 2016 | 2 | 12 |
| 2017 | 5 | 6 |
| 2018 | 7 | 6 |
| 2019 | 7 | 4 |
| 2020 | 7 | 7 |
| 2021 | 9 | 9 |
| 2022 | 8 | 3 |
| 2023 | 1 | 2 |
| 2024 | 2 | 3 |
| 2025 | 2 | 1 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture7 Jul 2026US 12,674,409 B2Climate Energy Investments, LLC
- Lubricating fluid for internal combustion engines fueled with alternative combustion fuels having high auto-ignition temperatures23 Jun 2026US 12,662,646 B2Afton Chemical Corporation
- Work vehicle power system with dynamic auto-ignition assistance compression ratios17 Feb 2026US 12,553,395 B2Deere & Company
- Systems and methods for coordinating an air blend valve with an intake air heater14 Oct 2025US 12,442,352 B1Saudi Arabian Oil Company
- Compression ignition engine with igniter and pilot injector28 Jan 2025US 12,209,532 B2Wisconsin Alumni Research Foundation
- Lubricating fluid for internal combustion engines fueled with alternative combustion fuels having high auto-ignition temperatures17 Sep 2026US 2026/0275226 A1Afton Chemical Corporation
- Multi-stage emission system for large displacement compression ignition non-road diesel, diesel-natural gas or alternative fuel mixture generator systems for emergency and non-emergency stationary power applications17 Sep 2026US 2026/0275892 A1Bluefin ESI, Inc.
- 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.
- Lubricating fluid for internal combustion engines fueled with alternative combustion fuels having high auto-ignition temperatures30 Apr 2026US 2026/0117140 A1Afton Chemical Corporation
- Systems and methods for combusting unconventional fuel chemistries in a diesel engine architecture23 Jan 2025US 2025/0027440 A1ClearFlame Engines, Inc.
Most cited
By later US patents
- Thermal ignition combustion system37US 4,738,227 AAdiabatics, Inc. · 1988
- Flex fuel field generator28US 9,175,601 B2INI Power Systems, Inc. · 2015
- Compression ignition initiation device and internal combustion engine using same13US 7,398,743 B2Caterpillar Inc. · 2008
- Control system of compression-ignition engine11US 10,487,720 B2Mazda Motor Corporation · 2019
- Ethanol engine system10US 10,197,019 B2Hitachi, Ltd. · 2019