F04B 7/06
The pistons and cylinders being relatively reciprocated and rotated
Official title: the pistons and cylinders being relatively reciprocated and rotated
F04B7/06 (The pistons and cylinders being relatively reciprocated and rotated) appears on 149 US grants and 110 published applications in this corpus.
Search patents in F04B- Granted patents
- 149
- Published applications
- 110
- Assignees
- 95
- Inventors
- 250
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 7 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 0 | 0 |
| 2001 | 5 | 1 |
| 2002 | 1 | 1 |
| 2003 | 2 | 4 |
| 2004 | 3 | 2 |
| 2005 | 1 | 7 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 0 | 6 |
| 2009 | 0 | 3 |
| 2010 | 4 | 4 |
| 2011 | 2 | 0 |
| 2012 | 4 | 3 |
| 2013 | 2 | 2 |
| 2014 | 0 | 5 |
| 2015 | 4 | 2 |
| 2016 | 4 | 7 |
| 2017 | 6 | 5 |
| 2018 | 1 | 2 |
| 2019 | 7 | 10 |
| 2020 | 5 | 8 |
| 2021 | 10 | 3 |
| 2022 | 4 | 5 |
| 2023 | 2 | 10 |
| 2024 | 8 | 9 |
| 2025 | 8 | 5 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Calibratable variable displacement pump30 Oct 2025US 2025/0334112 A1Fluid Metering, Inc.
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- Oscillating metering pump18 Sep 2025US 2025/0290494 A1ProMinent GmbH
Most cited
By later US patents
- Linear liquid dispensing pump for dispensing liquid in nanoliter volumes124US 5,312,233 AIvek Corporation · 1994
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- Method and apparatus for pressurizing fluids106US 5,879,137 AJetec Company · 1999
- Proportioning pump72US 5,158,441 ABaxter International Inc. · 1992
- Micropump71US 8,282,366 B2Sensile Pat AG · 2012