F03C 1/0457
By changing the effective piston stroke
Official title: {by changing the effective piston stroke}
F03C1/0457 (By changing the effective piston stroke) appears on 20 US grants and 10 published applications in this corpus.
Search patents in F03C- Granted patents
- 20
- Published applications
- 10
- Assignees
- 13
- Inventors
- 36
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 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 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 0 | 1 |
| 2018 | 0 | 1 |
| 2019 | 1 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 1 |
| 2022 | 1 | 2 |
| 2023 | 2 | 1 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Multi piston machine with at least three switchable displacement volumes2 Sep 2025US 12,404,832 B2Robert Bosch GmbH
- Motor-hydraulic machine unit for attachment to a hydraulic assembly24 Oct 2023US 11,795,926 B2Robert Bosch GmbH
- Hydraulic radial piston device26 Sep 2023US 11,767,831 B2Eaton Intelligent Power Limited
- Hydraulic radial piston device20 Sep 2022US 11,448,203 B2Eaton Intelligent Power Limited
- Distribution device for a hydraulic machine and a hydraulic machine fitted with such a device23 Jun 2020US 10,690,109 B2Poclain Hydraulics Industrie
- A pump adapted to exert a compression action on a fluid and motor actuated by a corresponding propulsion fluid12 Jan 2023US 2023/0012012 A1Ferroni Transmission S.R.L.
- Multi Piston Machine with at least Three Switchable Displacement Volumes8 Dec 2022US 2022/0389902 A1Robert Bosch GmbH
- Hydraulic radial piston device3 Mar 2022US 2022/0065236 A1Eaton Intelligent Power Limited
- Motor-Hydraulic Machine Unit for Attachment to a Hydraulic Assembly18 Feb 2021US 2021/0048008 A1Robert Bosch GmbH
- Hydraulic radial piston device15 Mar 2018US 2018/0073492 A1Eaton Intelligent Power Limited
Most cited
By later US patents
- Radial cylinder hydraulic motor9US 4,320,692 AKayaba Kogyo Kabushiki Kaisha · 1982
- Radial piston hydraulic motor with variable eccentricity6US 4,548,124 ARiva Calzoni S.p.A. · 1985
- Hydraulic radial piston machine3US 4,643,077 A1987
- Radial piston machine with shaft radial position stroke control3US 4,768,421 AG. Dusterloh GmbH · 1988
- Radial piston hydraulic motor of variable cylinder capacity3US 5,012,724 A1991