F16K 3/03
With a closure member in the form of an iris-diaphragm
Official title: with a closure member in the form of an iris-diaphragm
F16K3/03 (With a closure member in the form of an iris-diaphragm) appears on 95 US grants and 117 published applications in this corpus.
Search patents in F16K- Granted patents
- 95
- Published applications
- 117
- Assignees
- 63
- Inventors
- 160
- Latest grant
- 11 Aug 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 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 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 2 |
| 2003 | 2 | 2 |
| 2004 | 2 | 0 |
| 2005 | 3 | 1 |
| 2006 | 0 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 2 |
| 2009 | 0 | 4 |
| 2010 | 2 | 0 |
| 2011 | 0 | 1 |
| 2012 | 3 | 0 |
| 2013 | 0 | 3 |
| 2014 | 1 | 2 |
| 2015 | 5 | 5 |
| 2016 | 3 | 6 |
| 2017 | 4 | 13 |
| 2018 | 4 | 8 |
| 2019 | 10 | 6 |
| 2020 | 6 | 30 |
| 2021 | 8 | 7 |
| 2022 | 14 | 12 |
| 2023 | 7 | 1 |
| 2024 | 1 | 2 |
| 2025 | 3 | 4 |
| 2026 | 3 | 4 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Metal obturators, dilating disk valves including same, and methods relating thereto11 Aug 2026US 12,704,185 B1Clarke Industrial Engineering, Inc.
- Valve assembly including removable cartridge11 Aug 2026US 12,704,186 B1Clarke Industrial Engineering, Inc.
- Flow control valve27 Jan 2026US 12,535,142 B2
- Pressureless water tank for operation in an aircraft, aircraft section and aircraft having a water tank7 Oct 2025US 12,434,906 B2Airbus Operations GmbH
- Closure mechanism23 Sep 2025US 12,422,597 B2Bayerische Motoren Werke Aktiengesellschaft
- Biomass processing system for treatment of biomass material8 Oct 2026US 2026/0308845 A1Valmet Corporation
- Drainpipe for draining waste from a recreational vehicle16 Jul 2026US 2026/0201689 A1
- Break check valve26 Feb 2026US 2026/0055842 A1Mueller International, LLC
- Dosing Orifice15 Jan 2026US 2026/0016093 A1Teubert Maschinenbau GmbH
- High conductance variable orifice valve20 Nov 2025US 2025/0354614 A1APPLIED Materials.Inc.
Most cited
By later US patents
- Process fluid flow device with variable orifice1,068US 7,255,012 B2Rosemount Inc. · 2007
- Dynamic respiratory control162US 6,631,716 B1The Board of Trustees of the Leland Stanford Junior University · 2003
- Variable orifice using an iris shutter100US 4,094,492 AThe United States of America as represented by the United States Department of Energy · 1978
- Damper with fanning blades35US 6,010,113 AHoneywell Inc. · 2000
- Process for controlling flow rate of viscous materials including use of a nozzle with changeable opening27US 5,975,493 AThe University of Chicago · 1999