F16D 2048/0209
Characterised by fluid valves having control pistons
Official title: {characterised by fluid valves having control pistons, e.g. spools}
F16D2048/0209 (Characterised by fluid valves having control pistons) appears on 220 US grants and 115 published applications in this corpus.
Search patents in F16D- Granted patents
- 220
- Published applications
- 115
- Assignees
- 103
- Inventors
- 357
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 5 | 0 |
| 1978 | 5 | 0 |
| 1979 | 2 | 0 |
| 1980 | 4 | 0 |
| 1981 | 7 | 0 |
| 1982 | 3 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 5 | 0 |
| 1986 | 12 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 4 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 3 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 7 | 0 |
| 2001 | 1 | 2 |
| 2002 | 7 | 5 |
| 2003 | 5 | 4 |
| 2004 | 2 | 2 |
| 2005 | 2 | 5 |
| 2006 | 5 | 10 |
| 2007 | 5 | 4 |
| 2008 | 5 | 3 |
| 2009 | 4 | 3 |
| 2010 | 1 | 1 |
| 2011 | 2 | 9 |
| 2012 | 1 | 11 |
| 2013 | 6 | 7 |
| 2014 | 15 | 10 |
| 2015 | 7 | 4 |
| 2016 | 9 | 7 |
| 2017 | 8 | 6 |
| 2018 | 5 | 5 |
| 2019 | 4 | 4 |
| 2020 | 7 | 4 |
| 2021 | 0 | 2 |
| 2022 | 4 | 2 |
| 2023 | 4 | 4 |
| 2024 | 3 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Methods and systems for improving the operation of transmissions for motor vehicles7 Oct 2025US 12,435,786 B2Transgo, LLC
- Method for actuating a decoupling unit12 Nov 2024US 12,140,191 B2Schaeffler Technologies AG & Co. KG
- Fluidic control system9 Jul 2024US 12,031,555 B2Liberty Vehicle Technologies Limited
- Torque-limiting clutch comprising a release trigger mechanism23 Apr 2024US 11,965,564 B2C Falk Remote Control AB
- Torque-limiting clutch comprising a release trigger mechanism3 Oct 2023US 11,773,924 B2C Falk Remote Control AB
- Method for actuating a decoupling unit15 Feb 2024US 2024/0052895 A1Schaeffler Technologies AG & Co. KG
- Torque-limiting clutch comprising a release trigger mechanism21 Dec 2023US 2023/0407925 A1C Falk Remote Control AB
- Methods And Systems For Improving The Operation Of Transmissions For Motor Vehicles20 Jul 2023US 2023/0228303 A1Transgo, LLC
- Fluidic control system30 Mar 2023US 2023/0097474 A1Liberty Vehicle Technologies Limited
- Hydraulic control system23 Mar 2023US 2023/0086720 A1Dana Motion Systems Italia S.R.L.
Most cited
By later US patents
- Slip control system for a clutch85US 4,468,988 AMitsubishi Jidosha Kogyo Kabushiki Kaisha · 1984
- Valve apparatus for controlling hydraulic pressure for a clutch or a brake and method for controlling hydraulic pressure40US 6,499,577 B2Komatsu Ltd. · 2002
- Multi-mode clutch for change-speed transmissions36US 5,031,746 A1991
- Hydraulic clutch actuation system29US 6,997,299 B2MAGNA Powertrain AG & Co KG · 2006
- Fluid pressure modulating apparatus for a fluidically actuated frictional engaging apparatus in a vehicle transmission28US 4,086,994 AAisin Seiki Kabushiki Kaisha · 1978