F01B 9/026
Rigid connections between piston and rod
Official title: {Rigid connections between piston and rod; Oscillating pistons}
F01B9/026 (Rigid connections between piston and rod) appears on 140 US grants and 66 published applications in this corpus.
Search patents in F01B- Granted patents
- 140
- Published applications
- 66
- Assignees
- 57
- Inventors
- 167
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 3 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 6 | 0 |
| 1995 | 6 | 0 |
| 1996 | 9 | 0 |
| 1997 | 5 | 0 |
| 1998 | 8 | 0 |
| 1999 | 8 | 0 |
| 2000 | 6 | 0 |
| 2001 | 7 | 2 |
| 2002 | 2 | 3 |
| 2003 | 3 | 3 |
| 2004 | 1 | 6 |
| 2005 | 1 | 1 |
| 2006 | 2 | 2 |
| 2007 | 0 | 2 |
| 2008 | 1 | 0 |
| 2009 | 2 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 2 |
| 2013 | 1 | 6 |
| 2014 | 3 | 3 |
| 2015 | 1 | 5 |
| 2016 | 2 | 2 |
| 2017 | 5 | 3 |
| 2018 | 4 | 3 |
| 2019 | 4 | 4 |
| 2020 | 4 | 8 |
| 2021 | 7 | 3 |
| 2022 | 3 | 0 |
| 2023 | 2 | 2 |
| 2024 | 1 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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- Integrated flywheel and intake cam lobe18 Oct 2022US 11,473,453 B1Southwest Research Institute
- Power system with carbon dioxide working fluid, generator, and propulsion system28 Aug 2025US 2025/0270931 A1
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- Two-stroke engine with blowby-gas exchange and variable combustion chamber31 Aug 2023US 2023/0272716 A1Aquarius Engines (A.M.) Ltd.
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Most cited
By later US patents
- Scotch yoke engine with variable stroke and compression ratio64US 4,485,768 A1984
- Cam controlled reciprocating piston device54US 4,459,945 A1984
- Bourke type engine49US 4,013,048 A1977
- Internal combustion engine with stroke specialized cylinders47US 5,546,897 A1996
- Dual-cylinder expander engine and combustion method with two expansion strokes per cycle47US 6,202,416 B1The United States of America as represented by the Administrator of the U. S. Environmental Protection Agency · 2001