F16K 39/02
Devices for relieving the pressure on the sealing faces: for lift valves
Official title: for lift valves
F16K39/02 (Devices for relieving the pressure on the sealing faces: for lift valves) appears on 430 US grants and 411 published applications in this corpus.
Search patents in F16K- Granted patents
- 430
- Published applications
- 411
- Assignees
- 287
- Inventors
- 872
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 6 | 0 |
| 1978 | 2 | 0 |
| 1979 | 1 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 7 | 0 |
| 1983 | 1 | 0 |
| 1984 | 5 | 0 |
| 1985 | 2 | 0 |
| 1986 | 4 | 0 |
| 1987 | 2 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 7 | 0 |
| 1996 | 5 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 1 | 0 |
| 2000 | 4 | 0 |
| 2001 | 6 | 5 |
| 2002 | 8 | 9 |
| 2003 | 8 | 3 |
| 2004 | 6 | 8 |
| 2005 | 2 | 6 |
| 2006 | 9 | 6 |
| 2007 | 3 | 5 |
| 2008 | 0 | 2 |
| 2009 | 3 | 9 |
| 2010 | 2 | 16 |
| 2011 | 3 | 6 |
| 2012 | 11 | 13 |
| 2013 | 13 | 18 |
| 2014 | 8 | 25 |
| 2015 | 13 | 22 |
| 2016 | 31 | 17 |
| 2017 | 9 | 17 |
| 2018 | 19 | 22 |
| 2019 | 27 | 33 |
| 2020 | 22 | 28 |
| 2021 | 25 | 28 |
| 2022 | 28 | 38 |
| 2023 | 30 | 20 |
| 2024 | 26 | 24 |
| 2025 | 22 | 20 |
| 2026 | 14 | 11 |
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.
- 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.
- Valve with improved piston balancing16 Jul 2026US 2026/0201978 A1Danfoss A/S
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
- Straight valve54US 6,116,571 ABurkert Werke GmbH & Co. · 2000
- Control valve49US 5,217,043 A1993
- Combined valve40US 4,481,776 AHitachi, Ltd. · 1984