F16K 7/00
Diaphragm valves or cut-off apparatus
Official title: Diaphragm {valves or} cut-off apparatus, e.g. with a member deformed, but not moved bodily, to close the passage (container gates or closures operating by deformation of flexible walls B65D90/56; means for plugging pipes or hoses F16L55/10 ){; Pinch valves}
F16K7/00 (Diaphragm valves or cut-off apparatus) appears on 2,221 US grants and 1,934 published applications in this corpus.
Search patents in F16K- Granted patents
- 2,221
- Published applications
- 1,934
- Assignees
- 1,138
- Inventors
- 3,710
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 28 | 0 |
| 1977 | 23 | 0 |
| 1978 | 23 | 0 |
| 1979 | 23 | 0 |
| 1980 | 24 | 0 |
| 1981 | 30 | 0 |
| 1982 | 28 | 0 |
| 1983 | 20 | 0 |
| 1984 | 23 | 0 |
| 1985 | 31 | 0 |
| 1986 | 17 | 0 |
| 1987 | 22 | 0 |
| 1988 | 15 | 0 |
| 1989 | 18 | 0 |
| 1990 | 25 | 0 |
| 1991 | 24 | 0 |
| 1992 | 22 | 0 |
| 1993 | 29 | 0 |
| 1994 | 30 | 0 |
| 1995 | 21 | 0 |
| 1996 | 21 | 0 |
| 1997 | 17 | 0 |
| 1998 | 29 | 0 |
| 1999 | 27 | 0 |
| 2000 | 50 | 0 |
| 2001 | 38 | 13 |
| 2002 | 31 | 37 |
| 2003 | 26 | 39 |
| 2004 | 38 | 53 |
| 2005 | 39 | 55 |
| 2006 | 47 | 62 |
| 2007 | 33 | 47 |
| 2008 | 26 | 51 |
| 2009 | 24 | 43 |
| 2010 | 28 | 50 |
| 2011 | 25 | 49 |
| 2012 | 38 | 53 |
| 2013 | 35 | 59 |
| 2014 | 51 | 81 |
| 2015 | 67 | 85 |
| 2016 | 80 | 126 |
| 2017 | 92 | 129 |
| 2018 | 106 | 111 |
| 2019 | 121 | 123 |
| 2020 | 118 | 135 |
| 2021 | 121 | 111 |
| 2022 | 107 | 90 |
| 2023 | 91 | 94 |
| 2024 | 87 | 92 |
| 2025 | 83 | 77 |
| 2026 | 49 | 69 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F16K 7/12Diaphragm valves or cut-off apparatus: with flat, dished, or bowl-shaped diaphragm1,144
- F16K 7/02Diaphragm valves or cut-off apparatus: with tubular diaphragm836
- F16K 7/10Diaphragm valves or cut-off apparatus: with inflatable member145
- F16K 7/18Diaphragm valves or cut-off apparatus: with diaphragm secured at one side only51
- F16K 7/20Diaphragm valves or cut-off apparatus: with a compressible solid closure member50
Recent patents
- Fluid control valve with diaphragm tensioning geometry6 Oct 2026US 12,753,844 B2Equilibar, LLC
- System of valves for cell culture machine6 Oct 2026US 12,753,847 B2Cellaven
- Safety valve29 Sep 2026US 12,747,806 B2Ham-Let [Israel-Canada] Ltd.
- Clamp assemblies for clamping tubing and controlling fluid flow29 Sep 2026US 12,747,819 B2Corning Incorporated
- Leak-proof fluid connection system22 Sep 2026US 12,741,131 B2CareFusion 303, Inc.
- Recirculation valve1 Oct 2026US 2026/0298354 A1Kyungdong Navien Co., Ltd.
- High-temperature diaphragm valve1 Oct 2026US 2026/0298355 A1Kitz Sct Corporation
- Valve and fluid control device24 Sep 2026US 2026/0287077 A1Murata Manufacturing Co., Ltd.
- Valve24 Sep 2026US 2026/0287082 A1Fujikin Incorporated
- Flow Restriction Devices, Methods, and Systems17 Sep 2026US 2026/0273179 A1NxStage Medical, Inc.
Most cited
By later US patents
- Diaphragm valve with reliability enhancements for atomic layer deposition386US 7,021,330 B2Planar Systems, Inc. · 2006
- Ultrasonic surgical instrument incorporating fluid management296US 8,348,880 B2Ethicon Endo-Surgery, Inc. · 2013
- Valve assembly251US 5,009,391 AThe Kendall Company · 1991
- Pressure sensitive valves for extracorporeal circuits251US 5,186,431 A1993
- Valve assembly246US 4,895,346 AThe Kendall Company · 1990