F16K 31/3835
The discharge being effected through the piston and being blockable by a
Official title: {the discharge being effected through the piston and being blockable by a mechanically-actuated member making contact with the piston}
F16K31/3835 (The discharge being effected through the piston and being blockable by a) appears on 49 US grants and 41 published applications in this corpus.
Search patents in F16K- Granted patents
- 49
- Published applications
- 41
- Assignees
- 24
- Inventors
- 69
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 1 |
| 2003 | 3 | 6 |
| 2004 | 2 | 1 |
| 2005 | 4 | 4 |
| 2006 | 2 | 2 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 1 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 3 |
| 2013 | 0 | 4 |
| 2014 | 0 | 2 |
| 2015 | 3 | 3 |
| 2016 | 4 | 2 |
| 2017 | 4 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 1 |
| 2020 | 2 | 1 |
| 2021 | 1 | 1 |
| 2022 | 0 | 2 |
| 2023 | 2 | 0 |
| 2024 | 1 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Rigid piston for use in a flush valve2 Sep 2025US 12,404,949 B2SDB IP Holdings, LLC
- Rigid piston valve incorporating a solenoid30 Jan 2024US 11,885,432 B2SDB IP Holdings, LLC
- Gas cylinder valve with radially extending operating handle28 Nov 2023US 11,828,416 B2Rotarex S.A.
- Valve for hydrogen tank of fuel cell vehicle29 Aug 2023US 11,739,856 B2Hyundai Motor Company
- Rigid piston valve incorporating a solenoid13 Jul 2021US 11,060,630 B2SDB IP Holdings, LLC
- Rigid Piston Valve Incorporating a Solenoid11 Apr 2024US 2024/0117893 A1SDB IP Holdings, LLC
- Valve for Hydrogen Tank of fuel cell vehicle22 Sep 2022US 2022/0299128 A1Hyundai Motor Company
- Gas cylinder valve with radially extending operating handle15 Sep 2022US 2022/0290819 A1Rotarex S.A.
- Rigid Piston Valve Incorporating a Solenoid7 Oct 2021US 2021/0310577 A1SDB IP Holdings, LLC
- Rigid Piston Valve Incorporating a Solenoid25 Jun 2020US 2020/0200287 A1SDB IP Holdings, LLC
Most cited
By later US patents
- Method and apparatus for using a high-pressure fluid jet97US 5,524,821 AJetec Company · 1996
- Flushometer piston77US 5,881,993 ASloan Valve Company · 1999
- Flush valve improvements for controlling flushing volume63US 5,415,374 ASloan Valve Company · 1995
- Instant on-off valve for high-pressure fluids61US 5,297,777 AJetec Company · 1994
- High-pressure fluid control valve51US 5,117,872 AFluidyne Corporation · 1992