F15B 13/0442
With proportional solenoid allowing stable intermediate positions
Official title: {with proportional solenoid allowing stable intermediate positions}
F15B13/0442 (With proportional solenoid allowing stable intermediate positions) appears on 133 US grants and 111 published applications in this corpus.
Search patents in F15B- Granted patents
- 133
- Published applications
- 111
- Assignees
- 93
- Inventors
- 290
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 5 | 2 |
| 2003 | 3 | 4 |
| 2004 | 5 | 3 |
| 2005 | 2 | 2 |
| 2006 | 2 | 2 |
| 2007 | 2 | 4 |
| 2008 | 2 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 4 |
| 2011 | 0 | 2 |
| 2012 | 1 | 6 |
| 2013 | 5 | 3 |
| 2014 | 3 | 3 |
| 2015 | 2 | 4 |
| 2016 | 4 | 5 |
| 2017 | 3 | 3 |
| 2018 | 4 | 16 |
| 2019 | 11 | 8 |
| 2020 | 18 | 15 |
| 2021 | 10 | 6 |
| 2022 | 9 | 3 |
| 2023 | 4 | 5 |
| 2024 | 2 | 3 |
| 2025 | 4 | 4 |
| 2026 | 2 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Hydraulic circuit for automatic transmission1,004US 9,488,197 B2Hyundai Motor Company · 2016
- Servo positioning system90US 5,787,915 AJ. Otto Byers & Associates · 1998
- Hydraulic valve arrangement with an annular check valve element44US 8,225,818 B1INCOVA Technologies, Inc. · 2012
- Servo-control valve42US 4,316,599 ARegie Nationale des Usines Renault · 1982
- Electrohydraulic valve arrangement41US 5,868,059 ACaterpillar Inc. · 1999