F02B 75/24
With cylinders arranged oppositely relative to main shaft and of "flat" type
Official title: with cylinders arranged oppositely relative to main shaft and of "flat" type
F02B75/24 (With cylinders arranged oppositely relative to main shaft and of "flat" type) appears on 353 US grants and 202 published applications in this corpus.
Search patents in F02B- Granted patents
- 353
- Published applications
- 202
- Assignees
- 112
- Inventors
- 464
- Latest grant
- 28 Jul 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 3 | 0 |
| 1980 | 3 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 9 | 0 |
| 1985 | 11 | 0 |
| 1986 | 7 | 0 |
| 1987 | 11 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 13 | 0 |
| 1991 | 7 | 0 |
| 1992 | 3 | 0 |
| 1993 | 3 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 15 | 0 |
| 1997 | 7 | 0 |
| 1998 | 10 | 0 |
| 1999 | 11 | 0 |
| 2000 | 10 | 0 |
| 2001 | 26 | 3 |
| 2002 | 8 | 12 |
| 2003 | 9 | 10 |
| 2004 | 12 | 14 |
| 2005 | 5 | 9 |
| 2006 | 11 | 6 |
| 2007 | 6 | 9 |
| 2008 | 5 | 10 |
| 2009 | 5 | 7 |
| 2010 | 5 | 4 |
| 2011 | 1 | 3 |
| 2012 | 6 | 13 |
| 2013 | 10 | 9 |
| 2014 | 6 | 8 |
| 2015 | 8 | 7 |
| 2016 | 4 | 7 |
| 2017 | 5 | 6 |
| 2018 | 8 | 4 |
| 2019 | 4 | 11 |
| 2020 | 10 | 11 |
| 2021 | 11 | 11 |
| 2022 | 8 | 10 |
| 2023 | 4 | 5 |
| 2024 | 6 | 3 |
| 2025 | 5 | 2 |
| 2026 | 4 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Opposed piston internal combustion engine with inviscid layer sealing470US 9,909,492 B2Prime Group Alliance, LLC · 2018
- Internal combustion engine with a single crankshaft and having opposed cylinders with opposed pistons130US 6,170,443 B22001
- Master and slave pullrods70US 9,593,710 B2EcoMotors, Inc. · 2017
- Scotch yoke engine with variable stroke and compression ratio64US 4,485,768 A1984
- Cam controlled reciprocating piston device54US 4,459,945 A1984