F16K 21/20
By means making use of air-suction through an opening closed by the
Official title: by means making use of air-suction through an opening closed by the rising liquid
F16K21/20 (By means making use of air-suction through an opening closed by the) appears on 20 US grants and 21 published applications in this corpus.
Search patents in F16K- Granted patents
- 20
- Published applications
- 21
- Assignees
- 11
- Inventors
- 32
- Latest grant
- 1 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 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 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 0 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 3 |
| 2019 | 2 | 2 |
| 2020 | 3 | 0 |
| 2021 | 0 | 7 |
| 2022 | 2 | 0 |
| 2023 | 1 | 0 |
| 2024 | 3 | 2 |
| 2025 | 3 | 4 |
By publication year. Applications have been published since 2001.
Recent patents
- Motion translation and interface devices, systems, and methods for endoscope valves1 Jul 2025US 12,342,983 B2Boston Scientific Scimed, Inc.
- Interface and motion translation devices, systems, and methods for endoscope valves29 Apr 2025US 12,285,154 B2Boston Scientific Scimed, Inc.
- Devices, systems, and methods for controlling fluids in endoscope systems4 Feb 2025US 12,213,645 B2Boston Scientific Scimed, Inc.
- Devices, systems, and methods for endoscope valve control10 Dec 2024US 12,161,291 B2Boston Scientific Scimed, Inc.
- Devices, systems, and methods for endoscope fluidics10 Dec 2024US 12,161,292 B2Boston Scientific Scimed, Inc.
- Interface and motion translation devices, systems, and methods for endoscope valves17 Jul 2025US 2025/0228431 A1Boston Scientific Scimed, Inc.
- Devices, systems, and methods for controlling fluids in endoscope systems1 May 2025US 2025/0134350 A1Boston Scientific Scimed, Inc.
- Devices, systems, and methods for endoscope fluidics20 Feb 2025US 2025/0057393 A1Boston Scientific Scimed, Inc.
- Devices, systems, and methods for endoscope valve control13 Feb 2025US 2025/0049296 A1Boston Scientific Scimed, Inc.
- Devices, systems, and methods for fluid control in endoscope systems12 Sep 2024US 2024/0298877 A1Boston Scientific Scimed, Inc.
Most cited
By later US patents
- Stop valve17US 4,292,996 AOMUV Orvosi Muszer es Vasipari Szovetkezet · 1981
- Apparatus for supplying fluid of predetermined quantity13US 4,360,127 ATokico Ltd. · 1982
- Turf playing surface aeration and drainage system7US 7,033,108 B1SubAir Systems, LLC · 2006
- Storage tank shut-off valve6US 5,564,464 ADover Corporation · 1996
- Siphon activated valve3US 10,774,512 B2Fluidmaster, Inc. · 2020