F02B 19/04
The isolation being effected by a protuberance on piston or cylinder head
Official title: the isolation being effected by a protuberance on piston or cylinder head
F02B19/04 (The isolation being effected by a protuberance on piston or cylinder head) appears on 59 US grants and 16 published applications in this corpus.
Search patents in F02B- Granted patents
- 59
- Published applications
- 16
- Assignees
- 29
- Inventors
- 91
- Latest grant
- 3 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 9 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 0 |
| 2003 | 2 | 2 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 2 |
| 2008 | 3 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 1 | 2 |
| 2013 | 0 | 0 |
| 2014 | 2 | 1 |
| 2015 | 0 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 2 | 1 |
| 2019 | 1 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 1 |
| 2024 | 2 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Internal pre-chamber (IPC) ignition device for turbulent jet ignition in reciprocating engines3 Sep 2024US 12,078,095 B1Saudi Arabian Oil Company
- Spark ignition internal combustion engine23 Jan 2024US 11,879,378 B2Fpt Industrial S.P.A.
- Internal combustion engine with pre-chamber4 Jan 2022US 11,215,109 B2Mazda Motor Corporation
- System and method for staged pre-chamber purging11 May 2021US 11,002,177 B2Caterpillar Inc.
- Systems and methods of compression ignition engines2 Jun 2020US 10,669,926 B2Nautilus Engineering, LLC
- Spark ignition internal combustion engine16 Feb 2023US 2023/0047309 A1Fpt Industrial S.P.A.
- Internal combustion engine with pre-chamber12 Aug 2021US 2021/0246822 A1Mazda Motor Corporation
- System and Method for Staged Pre-Chamber Purging21 May 2020US 2020/0158005 A1Caterpillar Inc.
- Systems and methods of compression ignition engines14 Mar 2019US 2019/0078499 A1Nautilus Engineering, LLC
- Pre-chamber ignition system10 May 2018US 2018/0128157 A1Ford Global Technologies, LLC
Most cited
By later US patents
- Variable-cycle engine42US 5,022,353 AIsuzu Ceramics Research Institute Co., Ltd. · 1991
- Internal combustion engines and method of operting an internal combustion engine using staged combustion35US 5,076,229 A1991
- Combustion chamber assembly of direct injection diesel engines33US 5,029,563 A1991
- Spark ignition internal combustion engine29US 5,832,892 A1998
- Engine cycle control system28US 5,005,539 AIsuzu Ceramics Research Institute Co., Ltd. · 1991