F03C 1/24
In which the liquid exclusively displaces one or more pistons reciprocating in
Official title: in which the liquid exclusively displaces one or more pistons reciprocating in rotary cylinders {(F03C1/0636 takes precedence)}
F03C1/24 (In which the liquid exclusively displaces one or more pistons reciprocating in) appears on 39 US grants and 19 published applications in this corpus.
Search patents in F03C- Granted patents
- 39
- Published applications
- 19
- Assignees
- 14
- Inventors
- 54
- Latest grant
- 17 Feb 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 2 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 1 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 2 | 0 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 0 |
| 2021 | 1 | 1 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 0 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F03C 1/2407Having cylinders in star or fan arrangement, the connection of the pistons25
- F03C 1/247With cylinders in star- or fan-arrangement , the connection of the pistons11
- F03C 1/2454Having cylinders in star or fan arrangement, the connection of the pistons2
- F03C 1/2462The rotary cylinder being provided with only one piston reciprocating within this1
Recent patents
- Hydrostatic rotating machine with radial pistons and with improved distribution17 Feb 2026US 12,553,501 B2Robert Bosch GmbH
- Cylinder block comprising piston-holding means26 Apr 2022US 11,313,345 B2Poclain Hydraulics Industrie
- Harmonic distribution radial piston hydraulic machine20 Jul 2021US 11,067,066 B2Poclain Hydraulics Industrie
- Cylinder block and swash plate type liquid-pressure rotating apparatus including same6 Oct 2020US 10,794,185 B2Kawasaki Jukogyo Kabushiki Kaisha
- Reinforced motor vehicle structure20 Mar 2018US 9,919,745 B2Renault S. A. S.
- Improved pressure adapter for hydraulic system8 Oct 2026US 2026/0309122 A1Poclain Hydraulics Industrie
- Hydrostatic Rotating Machine with Radial Pistons and with Improved Distribution1 May 2025US 2025/0137517 A1Robert Bosch GmbH
- Radial Piston Machine with Multi-Disc Brake27 Mar 2025US 2025/0102031 A1Robert Bosch GmbH
- Cylinder Block Comprising Piston-Holding Means19 Aug 2021US 2021/0254597 A1Poclain Hydraulics Industrie
- Cylinder block and swash plate type liquid-pressure rotating apparatus including same29 Aug 2019US 2019/0264564 A1Kawasaki Jukogyo Kabushiki Kaisha
Most cited
By later US patents
- Rotary hydraulic engine having oppositely disposed pistons in a scotch yoke assembly17US 4,598,628 A4 Square Motors · 1986
- Air borne craft, for example helicopter, and related devices17US 4,899,957 A1990
- Hydraulic drive unit for driving a drilling tool13US 5,437,338 APoclain Hydraulics · 1995
- Variable displacement hydrostatic pump and neutral return mechanism therefor11US 5,234,321 AEaton Corporation · 1993
- Hydraulic motor with stationary axle and rotating fluid distributor10US 4,700,613 AOy Partek AB · 1987