F02B 25/18
The charge flowing upward essentially along cylinder wall adjacent the inlet ports
Official title: the charge flowing upward essentially along cylinder wall adjacent the inlet ports, e.g. by means of deflection rib on piston {(F02B25/145 takes precedence)}
F02B25/18 (The charge flowing upward essentially along cylinder wall adjacent the inlet ports) appears on 42 US grants and 28 published applications in this corpus.
Search patents in F02B- Granted patents
- 42
- Published applications
- 28
- Assignees
- 23
- Inventors
- 69
- Latest grant
- 12 Jul 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 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 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 4 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 4 | 1 |
| 2003 | 0 | 0 |
| 2004 | 3 | 2 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 2 | 1 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 4 |
| 2011 | 2 | 5 |
| 2012 | 2 | 2 |
| 2013 | 3 | 2 |
| 2014 | 3 | 1 |
| 2015 | 1 | 0 |
| 2016 | 2 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 2 |
| 2019 | 1 | 1 |
| 2020 | 0 | 1 |
| 2021 | 3 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- Two-stroke engine and handheld work apparatus23 Jul 2026US 2026/0210286 A1Andreas Stihl AG & CO.KG
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- Two-stroke internal combustion engine14 Mar 2019US 2019/0078545 A1
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Most cited
By later US patents
- Combustion chamber importing system for two-cycle diesel engine54US 4,774,919 AYamaha Hatsudoki Kabushiki Kaisha · 1988
- Cylinder wall fuel injection system for cross-scavenged, two-cycle combustion engine27US 5,791,304 ABrunswick Corporation · 1998
- Two-stroke cycle internal combustion engine25US 6,367,432 B1Kioritz Corporation · 2002
- Cross-scavenged, two-cycle internal combustion engine20US 4,088,098 AOutboard Marine Corporation · 1978
- Internal combustion engine18US 4,184,462 ABrunswick Corporation · 1980