F16K 39/00
Devices for relieving the pressure on the sealing faces
F16K39/00 (Devices for relieving the pressure on the sealing faces) appears on 623 US grants and 558 published applications in this corpus.
Search patents in F16K- Granted patents
- 623
- Published applications
- 558
- Assignees
- 407
- Inventors
- 1,209
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 8 | 0 |
| 1978 | 4 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 7 | 0 |
| 1983 | 3 | 0 |
| 1984 | 7 | 0 |
| 1985 | 5 | 0 |
| 1986 | 11 | 0 |
| 1987 | 9 | 0 |
| 1988 | 2 | 0 |
| 1989 | 7 | 0 |
| 1990 | 4 | 0 |
| 1991 | 4 | 0 |
| 1992 | 6 | 0 |
| 1993 | 9 | 0 |
| 1994 | 5 | 0 |
| 1995 | 9 | 0 |
| 1996 | 9 | 0 |
| 1997 | 3 | 0 |
| 1998 | 5 | 0 |
| 1999 | 9 | 0 |
| 2000 | 11 | 0 |
| 2001 | 11 | 7 |
| 2002 | 10 | 9 |
| 2003 | 9 | 3 |
| 2004 | 7 | 14 |
| 2005 | 5 | 8 |
| 2006 | 9 | 7 |
| 2007 | 4 | 9 |
| 2008 | 0 | 2 |
| 2009 | 4 | 11 |
| 2010 | 4 | 21 |
| 2011 | 3 | 11 |
| 2012 | 16 | 16 |
| 2013 | 15 | 29 |
| 2014 | 14 | 33 |
| 2015 | 20 | 34 |
| 2016 | 43 | 19 |
| 2017 | 15 | 25 |
| 2018 | 24 | 32 |
| 2019 | 36 | 42 |
| 2020 | 29 | 43 |
| 2021 | 37 | 36 |
| 2022 | 36 | 49 |
| 2023 | 38 | 25 |
| 2024 | 34 | 28 |
| 2025 | 27 | 28 |
| 2026 | 17 | 17 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valves and trim assemblies for valves6 Oct 2026US 12,753,840 B2Fisher Jeon Gas Equipment (Chengdu) Co., Ltd.
- Valve head structure and flow regulating valve with valve head structure29 Sep 2026US 12,747,794 B2Zhejiang Dunan Artificial Environment Co., Ltd.
- High-pressure valve and high-pressure water gun8 Sep 2026US 12,729,768 B2
- Automatic pressure control device, film forming apparatus and pressure control method25 Aug 2026US 12,716,520 B2Ckd Corporation
- Diaphragm valve formed using additive manufacture18 Aug 2026US 12,710,102 B2Neptune Technology Group Inc.
- Gate valve system10 Sep 2026US 2026/0266394 A1Saudi Arabian Oil Company
- Valve trim apparatus having grooves to reduce cavitation10 Sep 2026US 2026/0266396 A1Fisher Controls International LLC
- High-pressure Valve and High-pressure Water Gun20 Aug 2026US 2026/0243351 A1Shanghai Peakpower Manufacturing Co.,Ltd.
- Reduced Stroke Control Cartridge For Hydraulic Valve20 Aug 2026US 2026/0243353 A1Giacomini S.p. A.
- Slam-shut valves and controller devices for slam-shut valves6 Aug 2026US 2026/0226998 A1Emerson Process Management Regulator Technologies, Inc.
Most cited
By later US patents
- Metering valve516US 4,164,959 AThe Salk Institute for Biological Studies · 1979
- Liquid distribution operable by solenoid valves93US 5,605,173 AEaton Corporation · 1997
- 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
- Straight valve54US 6,116,571 ABurkert Werke GmbH & Co. · 2000