F16K 1/44
Details of seats or valve members of double-seat valves
F16K1/44 (Details of seats or valve members of double-seat valves) appears on 477 US grants and 439 published applications in this corpus.
Search patents in F16K- Granted patents
- 477
- Published applications
- 439
- Assignees
- 309
- Inventors
- 888
- Latest grant
- 18 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 4 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 4 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 5 | 0 |
| 1990 | 3 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 10 | 0 |
| 1994 | 4 | 0 |
| 1995 | 3 | 0 |
| 1996 | 1 | 0 |
| 1997 | 5 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 3 |
| 2002 | 4 | 7 |
| 2003 | 10 | 3 |
| 2004 | 6 | 7 |
| 2005 | 3 | 5 |
| 2006 | 3 | 6 |
| 2007 | 9 | 10 |
| 2008 | 2 | 10 |
| 2009 | 4 | 7 |
| 2010 | 5 | 9 |
| 2011 | 6 | 21 |
| 2012 | 6 | 14 |
| 2013 | 16 | 34 |
| 2014 | 18 | 12 |
| 2015 | 10 | 18 |
| 2016 | 22 | 33 |
| 2017 | 25 | 16 |
| 2018 | 20 | 32 |
| 2019 | 27 | 36 |
| 2020 | 32 | 40 |
| 2021 | 25 | 25 |
| 2022 | 33 | 28 |
| 2023 | 21 | 22 |
| 2024 | 22 | 20 |
| 2025 | 25 | 11 |
| 2026 | 8 | 10 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Method for a manufacturing of a multiple poppet valve and an at least dual poppet valve18 Aug 2026US 12,710,105 B2ETO GRUPPE TECHNOLOGIES GmbH
- Two-stage valve for high pressure washing system4 Aug 2026US 12,697,630 B2Stant USA Corp.
- Valve assembly and piston with double o-ring interface and relief passage4 Aug 2026US 12,698,833 B2Bendix Commercial Vehicle Systems LLC
- Bonded seat valve4 Aug 2026US 12,698,835 B2Mueller International, LLC
- Tandem gas valve2 Jun 2026US 12,644,533 B2
- Pressure-balanced valve16 Jul 2026US 2026/0201979 A1Aerojet Rocketdyne, Inc.
- Repairable valve25 Jun 2026US 2026/0177150 A1Mogas Industries, Inc.
- Shut-off device with a bearing device4 Jun 2026US 2026/0153151 A1Neoperl GmbH
- Tandem gas valve30 Apr 2026US 2026/0117886 A1
- Tube lifter with ventilation valve16 Apr 2026US 2026/0104099 A1J. Schmalz GmbH
Most cited
By later US patents
- Solenoid valve75US 7,347,221 B2Karl Dungs GmbH & Co. KG · 2008
- Three-way-valve72US 5,172,728 AT.H.I. System Corporation · 1992
- Solenoid valve having coaxial armatures in a single coil design49US 6,047,718 AEmersonElectric Co. · 2000
- Combined stop and control valve for supplying steam49US 6,655,409 B1General Electric Company · 2003
- Fluid control valve and method46US 4,232,695 AThe Garrett Corporation · 1980