F16K 31/56
Without stable intermediate position
Official title: without stable intermediate position, e.g. with snap action
F16K31/56 (Without stable intermediate position) appears on 337 US grants and 310 published applications in this corpus.
Search patents in F16K- Granted patents
- 337
- Published applications
- 310
- Assignees
- 264
- Inventors
- 749
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 4 | 0 |
| 1990 | 7 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 9 | 0 |
| 2001 | 12 | 3 |
| 2002 | 9 | 6 |
| 2003 | 3 | 4 |
| 2004 | 7 | 9 |
| 2005 | 4 | 5 |
| 2006 | 6 | 8 |
| 2007 | 4 | 6 |
| 2008 | 4 | 5 |
| 2009 | 5 | 7 |
| 2010 | 6 | 3 |
| 2011 | 2 | 6 |
| 2012 | 4 | 7 |
| 2013 | 3 | 14 |
| 2014 | 8 | 10 |
| 2015 | 11 | 16 |
| 2016 | 13 | 13 |
| 2017 | 12 | 13 |
| 2018 | 13 | 7 |
| 2019 | 14 | 27 |
| 2020 | 18 | 36 |
| 2021 | 26 | 25 |
| 2022 | 26 | 17 |
| 2023 | 20 | 20 |
| 2024 | 19 | 21 |
| 2025 | 15 | 10 |
| 2026 | 6 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve with valve unit and pushbutton housing with actuating button25 Aug 2026US 12,716,513 B2Grohe AG
- Mechanically locked actuator system and method21 Apr 2026US 12,607,277 B2Baker Hughes Pressure Control LLC
- Mode selection valve for RAT re-stow pump14 Apr 2026US 12,601,345 B2Hamilton Sundstrand Corporation
- Valve17 Mar 2026US 12,578,033 B2
- Pneumatic valve with an SMA actuator17 Feb 2026US 12,553,532 B2Conti Temic microelectronic GmbH
- Valve upper part for sanitary fittings27 Aug 2026US 2026/0251232 A1Flühs Drehtechnik GmbH
- Valve upper part for sanitary fittings13 Aug 2026US 2026/0235210 A1Flühs Drehtechnik GmbH
- Shut-off device with variable stop23 Jul 2026US 2026/0210443 A1Neoperl GmbH
- Dual action flow reversing valve with bi-stable state23 Jul 2026US 2026/0210447 A1Neoperl GmbH
- Switching valve and switching unit for switching at least two fluid channels18 Jun 2026US 2026/0168579 A1Mann+Hummel GmbH
Most cited
By later US patents
- Miniature latching valve65US 6,742,761 B2TiNi Alloy Company · 2004
- Poppet valve actuator apparatus53US 4,309,022 AConsolidated Controls Corporation · 1982
- Plastic spring43US 3,990,674 AGeneral Motors Corporation · 1976
- Dual snap action for valves41US 6,672,565 B22004
- Acceleration sensitive shut off valve for firefighting equipment40US 6,354,320 B1Task Force Tips, Inc. · 2002