F16K 47/023
For preventing water-hammer
Official title: {for preventing water-hammer, e.g. damping of the valve movement}
F16K47/023 (For preventing water-hammer) appears on 154 US grants and 148 published applications in this corpus.
Search patents in F16K- Granted patents
- 154
- Published applications
- 148
- Assignees
- 125
- Inventors
- 345
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 4 | 0 |
| 1990 | 2 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 4 | 6 |
| 2006 | 3 | 2 |
| 2007 | 6 | 6 |
| 2008 | 2 | 7 |
| 2009 | 1 | 2 |
| 2010 | 1 | 2 |
| 2011 | 3 | 3 |
| 2012 | 3 | 4 |
| 2013 | 4 | 6 |
| 2014 | 2 | 2 |
| 2015 | 8 | 5 |
| 2016 | 2 | 13 |
| 2017 | 4 | 8 |
| 2018 | 8 | 13 |
| 2019 | 15 | 9 |
| 2020 | 8 | 16 |
| 2021 | 5 | 11 |
| 2022 | 15 | 7 |
| 2023 | 9 | 4 |
| 2024 | 4 | 7 |
| 2025 | 8 | 4 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- 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
- Spool valve18 Nov 2025US 12,474,724 B2IHI Corporation
- Flow regulator19 Aug 2025US 12,392,424 B2Cavagna Group S.P.A.
- Water hammer effect mitigation controlling device of solenoid valve for fluid22 Apr 2025US 12,281,719 B2
- Electronic timer for mitigation of solenoid valve water hammer effect10 Sep 2026US 2026/0266395 A1
- Expanding systems for break check water dampening26 Feb 2026US 2026/0055824 A1Mueller International, LLC
- Low water hammer break check valve2 Oct 2025US 2025/0305589 A1Mueller International, LLC
- Valve5 Jun 2025US 2025/0180124 A1Weir Minerals Netherlands B.V.
- Tub faucet having a control valve with reduced backpressure22 May 2025US 2025/0163689 A1Am Conservation Group
Most cited
By later US patents
- Pressure-actuated valve with metering choke49US 4,206,901 AThompson Manufacturing Company · 1980
- Diaphragm valve for irrigation systems46US 7,694,934 B2Rain Bird Corporation · 2010
- Slow acting fluid valve35US 4,872,638 ASemitool, Inc. · 1989
- Valve seating control device with variable area orifice27US 6,302,370 B1Diesel Engine Retarders, Inc. · 2001
- Integral check, pressure balanced, control valve23US 5,425,394 ADanfoss Manufacturing Company Limited · 1995