F16K 47/02
Means in valves for absorbing fluid energy: for preventing water-hammer or noise
Official title: for preventing water-hammer or noise
F16K47/02 (Means in valves for absorbing fluid energy: for preventing water-hammer or noise) appears on 371 US grants and 301 published applications in this corpus.
Search patents in F16K- Granted patents
- 371
- Published applications
- 301
- Assignees
- 269
- Inventors
- 746
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 5 | 0 |
| 1978 | 3 | 0 |
| 1979 | 4 | 0 |
| 1980 | 4 | 0 |
| 1981 | 6 | 0 |
| 1982 | 3 | 0 |
| 1983 | 6 | 0 |
| 1984 | 6 | 0 |
| 1985 | 2 | 0 |
| 1986 | 8 | 0 |
| 1987 | 7 | 0 |
| 1988 | 14 | 0 |
| 1989 | 7 | 0 |
| 1990 | 8 | 0 |
| 1991 | 5 | 0 |
| 1992 | 4 | 0 |
| 1993 | 4 | 0 |
| 1994 | 5 | 0 |
| 1995 | 4 | 0 |
| 1996 | 4 | 0 |
| 1997 | 2 | 0 |
| 1998 | 7 | 0 |
| 1999 | 3 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 4 |
| 2003 | 4 | 5 |
| 2004 | 5 | 5 |
| 2005 | 6 | 10 |
| 2006 | 6 | 3 |
| 2007 | 6 | 8 |
| 2008 | 3 | 17 |
| 2009 | 3 | 8 |
| 2010 | 3 | 4 |
| 2011 | 10 | 9 |
| 2012 | 7 | 9 |
| 2013 | 8 | 9 |
| 2014 | 6 | 8 |
| 2015 | 9 | 12 |
| 2016 | 5 | 22 |
| 2017 | 11 | 14 |
| 2018 | 16 | 22 |
| 2019 | 21 | 16 |
| 2020 | 15 | 33 |
| 2021 | 13 | 18 |
| 2022 | 25 | 17 |
| 2023 | 18 | 12 |
| 2024 | 12 | 13 |
| 2025 | 17 | 12 |
| 2026 | 6 | 11 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Valve cages having lattice structure29 Sep 2026US 12,747,807 B2Fisher Controls International LLC
- Electronic timer for mitigation of solenoid valve water hammer effect15 Sep 2026US 12,736,154 B2
- Expanding systems for break check water dampening18 Aug 2026US 12,710,111 B2Mueller International, LLC
- Valve arrangement for a fluid control system14 Jul 2026US 12,680,625 B2Volvo Truck Corporation
- Valve and method for manufacturing a closure member16 Jun 2026US 12,655,912 B2Valmet Flow Control Oy
- Electronic timer for mitigation of solenoid valve water hammer effect10 Sep 2026US 2026/0266395 A1
- Fixing structure for laminar flow element and flow rate control device27 Aug 2026US 2026/0251161 A1Fujikin Incorporated
- Optimizing valve plug and valve stem design for use in valves9 Jul 2026US 2026/0194147 A1Dresser, Inc.
- Exhaust device and silencer system18 Jun 2026US 2026/0167168 A1Zf Cv Systems Europe BV
- Flow stabilizing valve and flow stabilizing water hydrographic system using the same14 May 2026US 2026/0132805 A1Zhong Shan Dippers Electric Co., Ltd.
Most cited
By later US patents
- Control of fluid flow102US 4,728,075 A1988
- Fluid flow control valve with maximized noise reduction81US 4,397,331 AHoneywell Inc. · 1983
- Reduced noise water valve provided with flow control60US 4,248,270 AThe Singer Company · 1981
- Pressure-actuated valve with metering choke49US 4,206,901 AThompson Manufacturing Company · 1980
- Attenuating rotating valve having varying configurations46US 4,479,510 A1984