F02B 25/16
The charge flowing upward essentially along cylinder wall opposite the inlet ports
Official title: the charge flowing upward essentially along cylinder wall opposite the inlet ports {(F02B25/145 takes precedence)}
F02B25/16 (The charge flowing upward essentially along cylinder wall opposite the inlet ports) appears on 41 US grants and 40 published applications in this corpus.
Search patents in F02B- Granted patents
- 41
- Published applications
- 40
- Assignees
- 25
- Inventors
- 89
- Latest grant
- 24 Sep 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 1 |
| 2002 | 3 | 5 |
| 2003 | 4 | 1 |
| 2004 | 1 | 5 |
| 2005 | 2 | 0 |
| 2006 | 3 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 1 | 2 |
| 2013 | 0 | 1 |
| 2014 | 2 | 2 |
| 2015 | 2 | 3 |
| 2016 | 2 | 1 |
| 2017 | 1 | 1 |
| 2018 | 2 | 0 |
| 2019 | 1 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 2 | 2 |
| 2023 | 3 | 5 |
| 2024 | 2 | 0 |
| 2025 | 0 | 1 |
| 2026 | 0 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Two-stroke internal combustion engine7 Mar 2023US 11,598,247 B2Yamabiko Corporation
- Two-stroke engine10 Jan 2023US 11,549,430 B1Yamabiko Corporation
- Two-cycle engine with scavaging passage8 Oct 2026US 2026/0309071 A1Maruyama Mfg.Co., Inc.
- Two-stroke engine and handheld work apparatus23 Jul 2026US 2026/0210286 A1Andreas Stihl AG & CO.KG
- Air intake-type two-stroke engine26 Jun 2025US 2025/0207527 A1Yamabiko Corporation
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- Gas exchange in internal combustion engines for increased efficiency29 Jun 2023US 2023/0203981 A1
Most cited
By later US patents
- Stratified scavenging two-cycle engine53US 6,289,856 B1Komatsu Zenoah Co. · 2001
- Two-cycle combustion engine with air scavenging system30US 6,978,744 B2Kawasaki Jukogyo Kabushiki Kaisha · 2005
- Engine control system24US 5,685,802 ASanshin Kogyo Kabushiki Kaisha · 1997
- Stratified scavenging two-stroke cycle engine17US 6,497,204 B1Komatsu Zenoah Co. · 2002
- Scavenge control for engine15US 5,740,767 AYamaha Hatsudoki Kabushiki Kaisha · 1998