F03C 1/047
The pistons co-operating with an actuated element at the outer ends of
Official title: the pistons co-operating with an actuated element at the outer ends of the cylinders
F03C1/047 (The pistons co-operating with an actuated element at the outer ends of) appears on 63 US grants and 66 published applications in this corpus.
Search patents in F03C- Granted patents
- 63
- Published applications
- 66
- Assignees
- 25
- Inventors
- 138
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 2 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 0 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 2 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 3 |
| 2014 | 1 | 7 |
| 2015 | 0 | 2 |
| 2016 | 4 | 6 |
| 2017 | 3 | 8 |
| 2018 | 2 | 10 |
| 2019 | 9 | 4 |
| 2020 | 5 | 0 |
| 2021 | 4 | 3 |
| 2022 | 3 | 4 |
| 2023 | 2 | 2 |
| 2024 | 2 | 5 |
| 2025 | 4 | 6 |
| 2026 | 3 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Hydrostatic radial piston unit26 May 2026US 12,638,057 B2Danfoss A/S
- Hydrostatic rotating machine with radial pistons and with improved distribution17 Feb 2026US 12,553,501 B2Robert Bosch GmbH
- Hydrostatic radial piston unit13 Jan 2026US 12,523,201 B2Danfoss A/S
- Brake mechanism for a radial piston unit16 Dec 2025US 12,497,943 B2Danfoss A/S
- Multi piston machine with at least three switchable displacement volumes2 Sep 2025US 12,404,832 B2Robert Bosch GmbH
- Hydrostatic Rotary Machine Having Pins That Engage Grooves of a Cam Ring24 Sep 2026US 2026/0286928 A1Robert Bosch GmbH
- Improved assembly structure for a steering yoke of a hydraulic machine11 Jun 2026US 2026/0159156 A1Poclain Hydraulics Industrie
- Improved support structure for a steering member4 Jun 2026US 2026/0152226 A1Poclain Hydraulics Industrie
- Hydraulic machine comprising a dog brake18 Dec 2025US 2025/0382939 A1
- Hydraulic machine provided with a direction changing drawer23 Oct 2025US 2025/0327437 A1
Most cited
By later US patents
- Fluid mechanism with axially movable valve-seat21US 4,326,450 APoclain Hydraulics · 1982
- Fluid motor having fluid actuated advancing elements to advance an advanceable part of the fluid motor relative to a stator part of the fluid motor16US 6,575,078 B1Motorvation International Limited · 2003
- Hydraulic radial piston motor14US 4,522,110 AAB Hagglund & Soner · 1985
- Drive mechanism for driving displacement members disposed in tandem13US 6,036,611 APoclain Hydraulics Industrie · 2000
- Hydraulic motor11US 4,398,450 AOy Partek AB · 1983