F16K 31/52491
Comprising a diaphragm cut-off apparatus
Official title: {comprising a diaphragm cut-off apparatus}
F16K31/52491 (Comprising a diaphragm cut-off apparatus) appears on 55 US grants and 50 published applications in this corpus.
Search patents in F16K- Granted patents
- 55
- Published applications
- 50
- Assignees
- 42
- Inventors
- 113
- Latest grant
- 25 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 2 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 1 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 1 | 2 |
| 2005 | 2 | 3 |
| 2006 | 1 | 2 |
| 2007 | 2 | 2 |
| 2008 | 1 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 1 | 1 |
| 2014 | 1 | 0 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 1 | 3 |
| 2018 | 0 | 3 |
| 2019 | 4 | 3 |
| 2020 | 4 | 6 |
| 2021 | 4 | 4 |
| 2022 | 2 | 2 |
| 2023 | 5 | 6 |
| 2024 | 4 | 5 |
| 2025 | 3 | 2 |
| 2026 | 4 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Multi-valve water treatment device21 Oct 2025US 12,449,059 B2Intex Industries Xiamen Co. Ltd.
- Valve With Valve Unit and Pushbutton Housing With Actuating Button5 Feb 2026US 2026/0036218 A1Grohe AG
- Systems and methods for a bodily fluid drainage system24 Jul 2025US 2025/0235589 A1Lymphatica Medtech SA
- Control valve26 Jun 2025US 2025/0207684 A1Koganei Corporation
- Fluid control valve and fluid control device31 Oct 2024US 2024/0360918 A1HORIBA STEC, Co., Ltd.
- Valve11 Jul 2024US 2024/0229940 A1Fujikin Incorporated
Most cited
By later US patents
- Diaphragm-type flow control valve and manual control valve apparatus40US 5,551,477 AKabushiki-Kaisha Motoyama Seisakusho · 1996
- Valve apparatus for simultaneous control of a plurality of fluid paths34US 4,282,902 ABecton, Dickinson and Company · 1981
- Membrane gas valve for pulsing a gas25US 6,994,319 B2APPLIED Materials.Inc. · 2006
- Pinch valve24US 4,303,222 ARed Valve Company, Inc. · 1981
- Tube valve, a tube valve apparatus and a head cleaning apparatus20US 7,469,874 B2Seiko Epson Corporation · 2008