F02B 75/002
Double acting engines
Official title: {Double acting engines}
F02B75/002 (Double acting engines) appears on 63 US grants and 51 published applications in this corpus.
Search patents in F02B- Granted patents
- 63
- Published applications
- 51
- Assignees
- 14
- Inventors
- 73
- Latest grant
- 30 Apr 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 2 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 5 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 3 |
| 2005 | 1 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 0 |
| 2008 | 3 | 3 |
| 2009 | 0 | 0 |
| 2010 | 1 | 1 |
| 2011 | 0 | 1 |
| 2012 | 1 | 5 |
| 2013 | 1 | 2 |
| 2014 | 4 | 4 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 4 | 10 |
| 2018 | 5 | 3 |
| 2019 | 3 | 0 |
| 2020 | 2 | 6 |
| 2021 | 4 | 4 |
| 2022 | 2 | 3 |
| 2023 | 3 | 2 |
| 2024 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- MHMF alternating internal combustion engine30 Apr 2024US 11,970,968 B1
- System and method for controlling engine19 Dec 2023US 11,846,241 B2Aquarius Engines Central Europe Sp. z o.o.
- Engine with gas exchange through piston rod27 Jun 2023US 11,686,199 B2Aquarius Engines (A.M.) Ltd.
- Quadruple acting scotch yoke engine27 Jun 2023US 11,686,245 B2
- Six-cylinder opposed free piston internal combustion engine generator23 Aug 2022US 11,421,586 B2Harbin Engineering University
- Quadruple acting scotch yoke engine12 Oct 2023US 2023/0323807 A1
- System and method for controlling engine21 Sep 2023US 2023/0296062 A1Aquarius Engines Central Europe Sp. z o.o.
- Engine with gas exchange through piston rod8 Sep 2022US 2022/0282620 A1Aquarius Engines (A.M.) Ltd.
- Six-Cylinder Opposed Free Piston Internal Combustion Engine Generator21 Apr 2022US 2022/0120214 A1Harbin Engineering University
- Quadruple Acting Scotch Yoke Engine6 Jan 2022US 2022/0003158 A1
Most cited
By later US patents
- Free-piston engine without compressor55US 4,924,956 ARDG Inventions Corporation · 1990
- Fluid transfer in reciprocating devices37US 7,438,027 B12008
- Adiabatic, two-stroke cycle engine having piston-phasing and compression ratio control system36US 5,507,253 A1996
- Internal combustion engine35US 5,285,752 ASingle-Stroke Motors, Inc. · 1994
- Adiabatic, two-stroke cycle engine32US 5,375,567 A1994