F16K 47/12
The throttling channel being of helical form
Official title: the throttling channel being of helical form
F16K47/12 (The throttling channel being of helical form) appears on 50 US grants and 47 published applications in this corpus.
Search patents in F16K- Granted patents
- 50
- Published applications
- 47
- Assignees
- 36
- Inventors
- 97
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 2 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 2 |
| 2002 | 3 | 3 |
| 2003 | 4 | 0 |
| 2004 | 1 | 5 |
| 2005 | 0 | 3 |
| 2006 | 3 | 2 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 2 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 1 | 1 |
| 2014 | 0 | 3 |
| 2015 | 4 | 2 |
| 2016 | 0 | 3 |
| 2017 | 3 | 2 |
| 2018 | 3 | 4 |
| 2019 | 3 | 1 |
| 2020 | 2 | 3 |
| 2021 | 1 | 1 |
| 2022 | 3 | 3 |
| 2023 | 3 | 1 |
| 2024 | 2 | 1 |
| 2025 | 1 | 4 |
| 2026 | 3 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Valve cages having lattice structure29 Sep 2026US 12,747,807 B2Fisher Controls International LLC
- Explosion-proof spiral exhaust pressure relief device for mine16 Jun 2026US 12,655,921 B2Wujiang Tianlong Electronic Machinery Eqpt Co., Ltd.
- Micro-flow throttling device27 Jan 2026US 12,535,152 B2Shanghai Institute of Space Propulsion
- Method of manufacturing a fluid pressure reduction device4 Feb 2025US 12,215,802 B2Fisher Controls International LLC
- Medical pump device for conveying a medical fluid24 Dec 2024US 12,171,981 B2B. Braun Melsungen AG
- Valve cages having lattice structure25 Dec 2025US 2025/0389346 A1Fisher Controls International LLC
- Explosion-proof spiral exhaust pressure relief device for mine9 Oct 2025US 2025/0314330 A1Wujiang Tianlong Electronic Machinery Eqpt Co., Ltd.
- Water valve of reduced noise and method therefor20 Mar 2025US 2025/0092964 A1Robertshaw Controls Company
- Micro-flow throttling device27 Feb 2025US 2025/0067356 A1Shanghai Institute of Space Propulsion
- Manufacturing valve trim to abate valve noise30 May 2024US 2024/0175520 A1Dresser, Inc.
Most cited
By later US patents
- Downhole flow control devices79US 5,906,238 ABaker Hughes Incorporated · 1999
- Downhole flow control devices68US 6,334,486 B12002
- Downhole flow control devices50US 6,484,800 B2Baker Hughes Incorporated · 2002
- Self-cleaning metering device44US 6,581,902 B2Snecma Moteurs · 2003
- Flow control valve29US 4,407,327 ADresser Industries, Inc. · 1983