F16K 47/04
Means in valves for absorbing fluid energy: for decreasing pressure or noise
Official title: for decreasing pressure {or noise level}, the throttle being incorporated in the closure member
F16K47/04 (Means in valves for absorbing fluid energy: for decreasing pressure or noise) appears on 479 US grants and 337 published applications in this corpus.
Search patents in F16K- Granted patents
- 479
- Published applications
- 337
- Assignees
- 292
- Inventors
- 864
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 9 | 0 |
| 1977 | 7 | 0 |
| 1978 | 6 | 0 |
| 1979 | 2 | 0 |
| 1980 | 2 | 0 |
| 1981 | 10 | 0 |
| 1982 | 12 | 0 |
| 1983 | 8 | 0 |
| 1984 | 9 | 0 |
| 1985 | 14 | 0 |
| 1986 | 7 | 0 |
| 1987 | 12 | 0 |
| 1988 | 7 | 0 |
| 1989 | 6 | 0 |
| 1990 | 12 | 0 |
| 1991 | 9 | 0 |
| 1992 | 9 | 0 |
| 1993 | 6 | 0 |
| 1994 | 4 | 0 |
| 1995 | 6 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 9 | 0 |
| 1999 | 6 | 0 |
| 2000 | 7 | 0 |
| 2001 | 5 | 0 |
| 2002 | 0 | 4 |
| 2003 | 3 | 8 |
| 2004 | 6 | 9 |
| 2005 | 9 | 10 |
| 2006 | 10 | 6 |
| 2007 | 4 | 9 |
| 2008 | 5 | 6 |
| 2009 | 1 | 7 |
| 2010 | 7 | 12 |
| 2011 | 4 | 2 |
| 2012 | 4 | 8 |
| 2013 | 7 | 7 |
| 2014 | 5 | 16 |
| 2015 | 14 | 26 |
| 2016 | 16 | 24 |
| 2017 | 13 | 28 |
| 2018 | 21 | 24 |
| 2019 | 34 | 28 |
| 2020 | 25 | 16 |
| 2021 | 15 | 17 |
| 2022 | 24 | 20 |
| 2023 | 17 | 15 |
| 2024 | 14 | 13 |
| 2025 | 18 | 14 |
| 2026 | 10 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fluid flow control devices and systems, and methods of flowing fluids1 Sep 2026US 12,723,676 B2Flowserve Pte. Ltd.
- Valve trims having cellular arrays25 Aug 2026US 12,716,523 B2Emerson Process Management Regulator Technologies, Inc.
- Anti-cavitation and noise reduction trim in rotary control valve18 Aug 2026US 12,710,112 B2Bray International, Inc.
- Adjustable bi-directional throttling choke valve30 Jun 2026US 12,669,179 B2Cameron International Corporation
- Valve and method for manufacturing a closure member16 Jun 2026US 12,655,912 B2Valmet Flow Control Oy
- Valve trim apparatus having grooves to reduce cavitation10 Sep 2026US 2026/0266396 A1Fisher Controls International LLC
- Valve trim apparatus to reduce cavitation in valves3 Sep 2026US 2026/0258883 A1Emerson Process Management (Tianjin) Valves Co., Ltd.
- Flow stabilizing valve and flow stabilizing water hydrographic system using the same14 May 2026US 2026/0132805 A1Zhong Shan Dippers Electric Co., Ltd.
- Valve trims having cellular arrays23 Apr 2026US 2026/0110371 A1Emerson Process Management Regulator Technologies, Inc.
- Adjustable bi-directional throttling choke valve16 Apr 2026US 2026/0104095 A1Schlumberger Technology Corporation
Most cited
By later US patents
- Choke for controlling the flow of drilling mud105US 4,257,442 A1981
- Method and apparatus for controlling back pressure66US 4,355,784 AWarren Automatic Tool Co. · 1982
- Self-cleaning drip irrigation valve65US 3,998,427 A1976
- Low noise valve trim61US 3,990,475 AHoneywell Inc. · 1976
- Apparatus for controlling flow of biological/medical fluids to and from a patient61US 5,817,068 A1998