F02B 3/02
Engines characterised by air compression and subsequent fuel addition: with positive ignition
Official title: with positive ignition (with non-timed positive ignition F02B9/06)
F02B3/02 (Engines characterised by air compression and subsequent fuel addition: with positive ignition) appears on 63 US grants and 42 published applications in this corpus.
Search patents in F02B- Granted patents
- 63
- Published applications
- 42
- Assignees
- 40
- Inventors
- 124
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 3 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 1 |
| 2002 | 0 | 1 |
| 2003 | 2 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 1 | 3 |
| 2011 | 0 | 2 |
| 2012 | 0 | 4 |
| 2013 | 4 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 1 |
| 2017 | 0 | 1 |
| 2018 | 1 | 1 |
| 2019 | 2 | 5 |
| 2020 | 4 | 2 |
| 2021 | 2 | 3 |
| 2022 | 2 | 0 |
| 2023 | 2 | 6 |
| 2024 | 5 | 4 |
| 2025 | 2 | 1 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Split cycle engine2 Jun 2026US 12,644,406 B2Fpt Industrial S.P.A.
- Fuel bypass system for gaseous-fueled engine12 May 2026US 12,624,655 B2Generac Power Systems, Inc.
- Internal combustion engine with a high-pressure fuel pump29 Jul 2025US 12,372,013 B2
- Internal combustion engine for gaseous fuel18 Mar 2025US 12,253,046 B2Volvo Truck Corporation
- Fuel bypass system for gaseous-fueled engine26 Nov 2024US 12,152,529 B2Generac Power Systems, Inc.
- Fuel bypass system for gaseous-fueled engine17 Apr 2025US 2025/0122824 A1Generac Power Systems, Inc.
- Internal Combustion Engine with a High-Pressure Fuel Pump5 Dec 2024US 2024/0401505 A1
- Split Cycle Engine17 Oct 2024US 2024/0344478 A1Dolphin N2 Limited
- Fuel bypass system for gaseous-fueled engine1 Aug 2024US 2024/0254912 A1Generac Power Systems, Inc.
- Internal combustion engine for gaseous fuel29 Feb 2024US 2024/0068426 A1Volvo Truck Corporation
Most cited
By later US patents
- Internal combustion engines76US 5,531,199 AUnited Fuels Limited · 1996
- Direct fuel injection stratified charge engine63US 5,605,125 A1997
- Internal combustion engine51US 4,955,339 AToyota Jidosha Kabushiki Kaisha · 1990
- System and method for enhanced combustion control in an internal combustion engine43US 6,609,493 B2Nissan Motor Co., Ltd. · 2003
- Multi-stage combustion engine39US 5,609,131 AThe United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 1997