F16K 1/40
Of helical shape
Official title: of helical shape
F16K1/40 (Of helical shape) appears on 26 US grants and 18 published applications in this corpus.
Search patents in F16K- Granted patents
- 26
- Published applications
- 18
- Assignees
- 22
- Inventors
- 43
- Latest grant
- 13 Feb 2024
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 2 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 2 | 0 |
| 1989 | 1 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 3 |
| 2003 | 2 | 1 |
| 2004 | 1 | 6 |
| 2005 | 1 | 3 |
| 2006 | 2 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 1 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 1 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 1 | 1 |
| 2018 | 0 | 1 |
| 2019 | 0 | 0 |
| 2020 | 1 | 0 |
| 2021 | 0 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 1 | 0 |
| 2025 | 0 | 0 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method and apparatus for flow restriction13 Feb 2024US 11,898,659 B1Lancer Corporation
- Minimal lubrication device with fine adjustment of the flow of oil21 Jan 2020US 10,539,269 B2DROPSA S.p.A.
- Spring controlled valve3 Jan 2017US 9,535,428 B2Proportion-Air, Inc.
- Valve for vehicle24 May 2016US 9,347,567 B2Hyundai Motor Company
- Orifice device having multiple channels with varying flow rates for drug delivery23 Jul 2013US 8,491,571 B2Cordis Corporation
- Valve trim apparatus to reduce cavitation in valves3 Sep 2026US 2026/0258883 A1Emerson Process Management (Tianjin) Valves Co., Ltd.
- Spiral spring flow regulator27 Sep 2018US 2018/0275687 A1Fluidmaster, Inc.
- Minimal lubrication device with fine adjustment of the flow of oil21 Dec 2017US 2017/0363252 A1DROPSA S.p.A.
- Spring controlled valve20 Nov 2014US 2014/0338763 A1Proportion-Air, Inc.
- Valve for vehicle15 Nov 2012US 2012/0285149 A1Hyundai Motor Company
Most cited
By later US patents
- Temperature responsive line valve106US 4,778,104 AMemory Metals, Inc. · 1988
- Fluid flow restrictor device37US 4,411,292 A1983
- Valve for controlling pressure and flow21US 5,495,963 ANordson Corporation · 1996
- Dispensing valve with helical flow orifice18US 6,644,620 B2IMI Cornelius Inc. · 2003
- Fluid flow regulator15US 4,858,644 AOtis Engineering Corporation · 1989