F04C 2/32
Having both the movement defined in groups f04c2/02 and relative reciprocation between
Official title: having both the movement defined in groups F04C2/02 and relative reciprocation between co-operating members
F04C2/32 (Having both the movement defined in groups f04c2/02 and relative reciprocation between) appears on 64 US grants and 72 published applications in this corpus.
Search patents in F04C- Granted patents
- 64
- Published applications
- 72
- Assignees
- 43
- Inventors
- 154
- Latest grant
- 8 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 1 | 0 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 4 |
| 2013 | 1 | 4 |
| 2014 | 2 | 1 |
| 2015 | 4 | 10 |
| 2016 | 1 | 7 |
| 2017 | 7 | 7 |
| 2018 | 8 | 7 |
| 2019 | 6 | 4 |
| 2020 | 5 | 7 |
| 2021 | 1 | 4 |
| 2022 | 6 | 4 |
| 2023 | 5 | 3 |
| 2024 | 4 | 3 |
| 2025 | 0 | 0 |
| 2026 | 2 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F04C 2/332With vanes hinged to the outer member and reciprocating with respect to34
- F04C 2/324With vanes hinged to the inner member and reciprocating with respect to11
- F04C 2/321With vanes hinged to the inner member and reciprocating with respect to10
- F04C 2/322With vanes hinged to the outer member and reciprocating with respect to2
Recent patents
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- Hermetic compressor15 Feb 2024US 2024/0052832 A1Fujitsu General Limited
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Most cited
By later US patents
- Rotary pumping apparatus with radial seal assemblies on piston16US 4,692,104 AHansen Engine Corporation · 1987
- Rotary pump with orbiting rotor of harder material than stator15US 4,836,759 ANautical Services Pty. Ltd. · 1989
- Variable capacity swivelling vane pump12US 4,958,992 ANotron Engineering AG · 1990
- Orbital pump with inlet and outlet through the rotor9US 4,097,205 A1978
- Filling, fluid-transporting, and pumping device6US 5,613,846 A1997