F02B 2700/037
Scavenging or charging channels or openings
F02B2700/037 (Scavenging or charging channels or openings) appears on 11 US grants and 5 published applications in this corpus.
Search patents in F02B- Granted patents
- 11
- Published applications
- 5
- Assignees
- 3
- Inventors
- 8
- Latest grant
- 22 Mar 2022
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 0 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 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 | 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 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 2 |
| 2014 | 1 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Two stroke engine with valves actuated by air pressure near bottom dead center22 Mar 2022US 11,280,254 B2
- Stratified scavenging two-stroke engine16 Jan 2018US 9,869,235 B2Makita Corporation
- Two-cycle engine and engine tool comprising the same7 Jun 2016US 9,359,937 B2Hitachi Koki Co., Ltd.
- Stratified scavenging two-stroke engine8 Dec 2015US 9,206,736 B2Makita Corporation
- Two-stroke engine comprising a muffler30 Sep 2014US 8,844,672 B2Makita Corporation
- A two stroke engine with valves actuated by air pressure near bottom dead center23 Sep 2021US 2021/0293177 A1
- Stratified scavenging two-stroke engine31 Dec 2015US 2015/0377117 A1Makita Corporation
- Stratified scavenging two-stroke engine3 Jul 2014US 2014/0182571 A1Makita Corporation
- Two-stroke engine comprising a muffler5 Dec 2013US 2013/0319789 A1Makita Corporation
- Two-cycle engine and engine tool comprising the same10 Jan 2013US 2013/0008681 A1Hitachi Koki Co., Ltd.
Most cited
By later US patents
- Engine valve means and porting27US 4,000,723 APerformance Industries, Inc. · 1977
- Engine valving and porting21US 4,051,820 APerformance Industries, Inc. · 1977
- Two cycle internal combustion engine15US 4,161,163 APerformance Industries, Inc. · 1979
- Two cycle internal combustion engine14US 4,202,299 APerformance Industries, Inc. · 1980
- Two cycle internal combustion engine10US 4,062,331 APerformance Industries, Inc. · 1977