F16K 31/1228
With a stationary piston
Official title: {with a stationary piston}
F16K31/1228 (With a stationary piston) appears on 25 US grants and 13 published applications in this corpus.
Search patents in F16K- Granted patents
- 25
- Published applications
- 13
- Assignees
- 15
- Inventors
- 42
- Latest grant
- 8 Apr 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 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 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 1 |
| 2016 | 1 | 1 |
| 2017 | 0 | 0 |
| 2018 | 1 | 0 |
| 2019 | 0 | 4 |
| 2020 | 2 | 1 |
| 2021 | 2 | 2 |
| 2022 | 1 | 1 |
| 2023 | 1 | 2 |
| 2024 | 2 | 0 |
| 2025 | 3 | 1 |
By publication year. Applications have been published since 2001.
Recent patents
- Counterbalance valve with enhanced pressure sensing features8 Apr 2025US 12,271,212 B2Sun Hydraulics, LLC
- Valve unit28 Jan 2025US 12,208,561 B2Eugen Seitz AG
- Valve device7 Jan 2025US 12,188,565 B2GEA Tuchenhagen GmbH
- Slide valve16 Jul 2024US 12,038,097 B2Fike Corporation
- Multi-function pressure regulation valve19 Mar 2024US 11,933,408 B2Nelson Irrigation Corporation
- Counterbalance Valve with Enhanced Pressure Sensing Features16 Jan 2025US 2025/0021114 A1Sun Hydraulics, LLC
- Valve Device2 Nov 2023US 2023/0349468 A1GEA Tuchenhagen GmbH
- Valve Unit12 Oct 2023US 2023/0321892 A1Eugen Seitz AG
- Slide valve10 Feb 2022US 2022/0042606 A1Fike Corporation
- Multi-function pressure regulation valve30 Dec 2021US 2021/0404572 A1Nelson Irrigation Corporation
Most cited
By later US patents
- Valve actuator31US 5,487,527 AFisher Controls International LLC · 1996
- Fast opening valve18US 4,732,189 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1988
- Valves and valve actuators16US 4,519,575 AAVA International Corporation · 1985
- Valve actuator with instrument mounting manifold15US 5,853,022 AFisher Controls International LLC · 1998
- Axial control valve14US 6,216,721 B1Bermad · 2001