F16K 31/408
The discharge being effected through the piston and being blockable by an
Official title: {the discharge being effected through the piston and being blockable by an electrically-actuated member making contact with the piston}
F16K31/408 (The discharge being effected through the piston and being blockable by an) appears on 157 US grants and 158 published applications in this corpus.
Search patents in F16K- Granted patents
- 157
- Published applications
- 158
- Assignees
- 117
- Inventors
- 346
- Latest grant
- 2 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 6 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 2 | 0 |
| 1991 | 4 | 0 |
| 1992 | 3 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 3 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 3 | 0 |
| 2000 | 3 | 0 |
| 2001 | 4 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 6 |
| 2004 | 3 | 4 |
| 2005 | 3 | 1 |
| 2006 | 2 | 3 |
| 2007 | 1 | 3 |
| 2008 | 3 | 3 |
| 2009 | 0 | 1 |
| 2010 | 2 | 5 |
| 2011 | 3 | 5 |
| 2012 | 0 | 6 |
| 2013 | 3 | 7 |
| 2014 | 4 | 4 |
| 2015 | 4 | 15 |
| 2016 | 5 | 10 |
| 2017 | 6 | 5 |
| 2018 | 9 | 9 |
| 2019 | 9 | 11 |
| 2020 | 10 | 7 |
| 2021 | 3 | 5 |
| 2022 | 7 | 15 |
| 2023 | 8 | 4 |
| 2024 | 7 | 13 |
| 2025 | 10 | 6 |
| 2026 | 7 | 8 |
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 system with cross function regeneration90US 6,502,393 B1HUSCO International, Inc. · 2003
- Self-modulating control valve for high-pressure fluid flow65US 5,048,790 ATarget Rock Corporation · 1991
- Pressure responsive, pilot actuated, modulating valve57US 4,699,351 ATarget Rock Corporation · 1987
- Solenoid valve53US 4,540,154 AImperial Clevite Inc. · 1985
- Pilot solenoid control valve and hydraulic control system using same49US 5,878,647 AHUSCO International, Inc. · 1999