F03C 1/0447
Controlling
Official title: {Controlling}
F03C1/0447 (Controlling) appears on 112 US grants and 72 published applications in this corpus.
Search patents in F03C- Granted patents
- 112
- Published applications
- 72
- Assignees
- 49
- Inventors
- 170
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 2 | 0 |
| 1983 | 4 | 0 |
| 1984 | 1 | 0 |
| 1985 | 3 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 5 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 2 | 0 |
| 2001 | 4 | 2 |
| 2002 | 5 | 0 |
| 2003 | 2 | 1 |
| 2004 | 0 | 2 |
| 2005 | 2 | 2 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 1 | 6 |
| 2009 | 3 | 3 |
| 2010 | 1 | 0 |
| 2011 | 1 | 2 |
| 2012 | 4 | 5 |
| 2013 | 5 | 1 |
| 2014 | 0 | 3 |
| 2015 | 2 | 1 |
| 2016 | 2 | 3 |
| 2017 | 3 | 5 |
| 2018 | 1 | 3 |
| 2019 | 4 | 3 |
| 2020 | 5 | 3 |
| 2021 | 4 | 3 |
| 2022 | 4 | 8 |
| 2023 | 5 | 5 |
| 2024 | 2 | 3 |
| 2025 | 3 | 3 |
| 2026 | 3 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F03C 1/045By using a valve in a system with several pump or motor53
- F03C 1/0457By changing the effective piston stroke20
- F03C 1/0454By changing the effective cross sectional piston working surface2
- F03C 1/0463By changing the phase relationship between two actuated cams2
- F03C 1/0466By changing the phase relationship between the actuated cam and the distributing2
Recent patents
- Hydrostatic radial piston unit26 May 2026US 12,638,057 B2Danfoss A/S
- Thermo-magnetic motor10 Mar 2026US 12,571,357 B1
- Hydrostatic radial piston unit13 Jan 2026US 12,523,201 B2Danfoss A/S
- Cylinder on demand hydraulic device14 Oct 2025US 12,442,398 B2Tonand Inc.
- Multi piston machine with at least three switchable displacement volumes2 Sep 2025US 12,404,832 B2Robert Bosch GmbH
- Hydraulic motor8 Oct 2026US 2026/0309121 A1Worldpower AS
- Fabrication of nanotube bundles and reactors for the same27 Nov 2025US 2025/0361856 A1
- Hydraulic machine provided with a direction changing drawer23 Oct 2025US 2025/0327437 A1
- A hydraulic device and a hydraulic system for controlling a hydraulic actuator4 Sep 2025US 2025/0277497 A1Domin Fluid Power Limited
- Reversible Reciprocating Pump22 Aug 2024US 2024/0280101 A1Quidnet Energy Inc.
Most cited
By later US patents
- Hydro-electric hybrid drive system for motor vehicle46US 7,841,432 B2Bosch Rexroth AG · 2010
- Hydrostatic motor unit27US 6,248,037 B1Linde Aktiengesellschaft · 2001
- Bearing device for supporting a wheel and equipped with braking means23US 6,357,558 B1Poclain Hydraulics Industrie · 2002
- Pressurized fluid engine equipped with means for selecting its speed of rotation19US 4,404,896 APoclain Hydraulics · 1983
- Radial-piston hydraulic motor and method for regulation of a radial-piston hydraulic motor18US 5,836,231 AValmet Voimansiirto Oy · 1998