F16D 2048/0278
Two valves in series arrangement for controlling supply to actuation cylinder
Official title: {Two valves in series arrangement for controlling supply to actuation cylinder}
F16D2048/0278 (Two valves in series arrangement for controlling supply to actuation cylinder) appears on 31 US grants and 31 published applications in this corpus.
Search patents in F16D- Granted patents
- 31
- Published applications
- 31
- Assignees
- 27
- Inventors
- 83
- Latest grant
- 25 Jun 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1986 | 2 | 0 |
| 1987 | 2 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 0 | 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 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 3 |
| 2012 | 0 | 1 |
| 2013 | 3 | 4 |
| 2014 | 1 | 5 |
| 2015 | 4 | 4 |
| 2016 | 4 | 2 |
| 2017 | 3 | 1 |
| 2018 | 0 | 2 |
| 2019 | 3 | 2 |
| 2020 | 1 | 1 |
| 2021 | 0 | 2 |
| 2022 | 2 | 1 |
| 2023 | 1 | 1 |
| 2024 | 1 | 2 |
By publication year. Applications have been published since 2001.
Recent patents
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- Hydraulic assembly, friction clutch and method for operating a friction clutch24 Oct 2024US 2024/0352981 A1Schaeffler Technologies AG & Co. KG
- Method for controlling a hydraulic unit in particular for a drivetrain of a motor vehicle, hydraulic unit and drivetrain with hydraulic unit21 Mar 2024US 2024/0093779 A1Schaeffler Technologies AG & Co. KG
- Hydraulic control system23 Mar 2023US 2023/0086720 A1Dana Motion Systems Italia S.R.L.
- Hydraulic control system6 Jan 2022US 2022/0003278 A1Dana Motion Systems Italia S.R.L.
- Hydraulic control device and marine transmission27 May 2021US 2021/0156436 A1ZF Friedrichshafen AG
Most cited
By later US patents
- Hydraulic circuit for automatic transmission1,004US 9,488,197 B2Hyundai Motor Company · 2016
- Control system for hydraulic automatic clutch23US 4,576,265 ANissan Motor Co., Ltd. · 1986
- Vehicle/engine operational parameter responsive clutch control15US 4,583,627 ANissan Motor Co., Ltd. · 1986
- Transmission having electromagnetic proportional reduction valve13US 4,949,264 AKubota Corporation · 1990
- Propelling drive control apparatus for working vehicle12US 5,024,306 AKubota Corporation · 1991