F16K 39/04
Devices for relieving the pressure on the sealing faces: for sliding valves
Official title: for sliding valves
F16K39/04 (Devices for relieving the pressure on the sealing faces: for sliding valves) appears on 156 US grants and 124 published applications in this corpus.
Search patents in F16K- Granted patents
- 156
- Published applications
- 124
- Assignees
- 119
- Inventors
- 301
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 3 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 2 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 6 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 6 | 0 |
| 2001 | 5 | 2 |
| 2002 | 2 | 0 |
| 2003 | 1 | 0 |
| 2004 | 1 | 5 |
| 2005 | 3 | 1 |
| 2006 | 0 | 1 |
| 2007 | 1 | 5 |
| 2008 | 0 | 0 |
| 2009 | 1 | 2 |
| 2010 | 3 | 5 |
| 2011 | 0 | 4 |
| 2012 | 5 | 3 |
| 2013 | 2 | 10 |
| 2014 | 6 | 5 |
| 2015 | 6 | 7 |
| 2016 | 8 | 2 |
| 2017 | 5 | 5 |
| 2018 | 3 | 7 |
| 2019 | 8 | 9 |
| 2020 | 6 | 12 |
| 2021 | 10 | 8 |
| 2022 | 8 | 10 |
| 2023 | 8 | 6 |
| 2024 | 8 | 4 |
| 2025 | 6 | 7 |
| 2026 | 1 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Pressure-balanced valve with improved sealing properties26 May 2026US 12,638,085 B2Buti Research S.r.L.
- Pendulum valve18 Nov 2025US 12,473,981 B2Thermo Finnigan LLC
- Variable flow check valve device, suspension valve, vehicle suspension system and method4 Nov 2025US 12,460,732 B2ETO Magnetic GmbH
- Valve trim apparatus for use with fluid valves4 Nov 2025US 12,460,745 B2Fisher Controls International LLC
- Valve for providing a fluid-conducting connection between a pressure supply port and a consumer port or between the consumer port and a return port5 Aug 2025US 12,378,977 B2Hydac Fluidtechnik GmbH
- Gate valve system10 Sep 2026US 2026/0266394 A1Saudi Arabian Oil Company
- Slam-shut valves and controller devices for slam-shut valves6 Aug 2026US 2026/0226998 A1Emerson Process Management Regulator Technologies, Inc.
- Valve with improved piston balancing16 Jul 2026US 2026/0201978 A1Danfoss A/S
- Switching valve15 Jan 2026US 2026/0016097 A1Eagle Industry Co., Ltd.
- Locking Mechanism for Sealing Member of Valve with Bleeding Opening16 Oct 2025US 2025/0320925 A1
Most cited
By later US patents
- Pressure balanced gate valve having selective actuator systems84US 4,230,299 APetroleum Designers, Inc. · 1980
- Compact pressure balanced rotary valve75US 8,272,401 B2Air Products and Chemicals, Inc. · 2012
- Flow limiting valve52US 4,422,470 ACessna Aircraft Company · 1983
- Balanced stem gate valve35US 4,281,819 A1981
- Direct acting solenoid actuator31US 9,022,346 B2Flextronics AP, LLC · 2015