F03C 1/03
With movement in two directions being obtained by two single-acting piston liquid
Official title: with movement in two directions being obtained by two single-acting piston liquid engines, each acting in one direction
F03C1/03 (With movement in two directions being obtained by two single-acting piston liquid) appears on 15 US grants and 7 published applications in this corpus.
Search patents in F03C- Granted patents
- 15
- Published applications
- 7
- Assignees
- 10
- Inventors
- 21
- Latest grant
- 27 May 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 4 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 2 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 2 | 1 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 1 |
| 2021 | 1 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Hydrostatic pressure to kinetic energy conversion system27 May 2025US 12,313,028 B2
- Hydraulic system1 Jun 2021US 11,022,152 B2
- Hydraulic actuation unit, particularly for controlling the starting and stopping of hydraulic motors21 Mar 2017US 9,599,091 B2Poclain Hydraulics Industriale S.R.L.
- Piston pump and motor21 Mar 2017US 9,599,128 B2TherMass Innovations B.V.
- Reciprocating hydraulic machine, especially a motor, and dosing apparatus comprising such a motor24 Apr 2007US 7,207,260 B2Dosatron International
- Pressure medium powered device generating reciprocating motion3 Jul 2025US 2025/0215850 A1Dynaset Oy
- A hydrostatic pressure to kinetic energy conversion system11 Jan 2024US 2024/0011458 A1
- Hydraulic system23 Apr 2020US 2020/0124145 A1
- Hydraulic engine with hydraulic pump21 Dec 2017US 2017/0363059 A1
- Piston pump and motor23 Oct 2014US 2014/0311334 A1TherMass Innovations B.V.
Most cited
By later US patents
- Hydraulically driven striking device19US 4,084,486 ALinden-Alimak AB · 1978
- Motor with rotating mass induced vibration driving means19US 5,228,291 A1993
- Differential-area piston type mixed-phase motors10US 4,945,725 ARecovery Engineering, Inc. · 1990
- Fluid operated pump8US 4,705,458 ABellofram Corporation · 1987
- Reciprocating hydraulic machine, especially a motor, and dosing apparatus comprising such a motor8US 7,207,260 B2Dosatron International · 2007