F16K 21/16
Closing after a predetermined quantity of fluid has been delivered
Official title: closing after a predetermined quantity of fluid has been delivered (F16K21/10 takes precedence)
F16K21/16 (Closing after a predetermined quantity of fluid has been delivered) appears on 92 US grants and 58 published applications in this corpus.
Search patents in F16K- Granted patents
- 92
- Published applications
- 58
- Assignees
- 55
- Inventors
- 171
- Latest grant
- 16 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 2 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 4 | 0 |
| 1985 | 3 | 0 |
| 1986 | 5 | 0 |
| 1987 | 4 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 5 | 0 |
| 1991 | 1 | 0 |
| 1992 | 2 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 1 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 1 | 2 |
| 2008 | 1 | 3 |
| 2009 | 1 | 1 |
| 2010 | 1 | 0 |
| 2011 | 2 | 1 |
| 2012 | 0 | 2 |
| 2013 | 0 | 2 |
| 2014 | 1 | 3 |
| 2015 | 2 | 2 |
| 2016 | 2 | 2 |
| 2017 | 2 | 4 |
| 2018 | 2 | 5 |
| 2019 | 1 | 3 |
| 2020 | 4 | 9 |
| 2021 | 6 | 2 |
| 2022 | 5 | 3 |
| 2023 | 2 | 4 |
| 2024 | 1 | 3 |
| 2025 | 2 | 2 |
| 2026 | 0 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Flush valve apparatus16 Sep 2025US 12,416,143 B2AS America, Inc.
- Self-resetting shut-off valve29 Jul 2025US 12,372,160 B2
- Self-energized programmable timer control valve system19 Mar 2024US 11,933,421 B2
- Flush valve and motor alignment bracket5 Sep 2023US 11,746,514 B2Zurn Industries, LLC
- Self-closing flow valve4 Apr 2023US 11,619,315 B1
- Interactive Beverage Dispensing System and Method1 Oct 2026US 2026/0298366 A1
- System and method for fluid handling in a shower or bath24 Sep 2026US 2026/0286668 A1
- Volumetric Metering Valve, Particularly for Liquid, Viscous and/or Piece-Containing Products30 Apr 2026US 2026/0116601 A1Zanichelli Meccanica S.p.A.
- Microdosing valve9 Oct 2025US 2025/0314320 A1Uster S.R.L.
- Electromechanical connection device and directional control valve equipped therewith26 Jun 2025US 2025/0207686 A1Festo AG & Co.
Most cited
By later US patents
- Flush valves78US 4,272,052 AZurn Industries, LLC · 1981
- Water shutoff valve68US 4,589,435 A1986
- Water-micro-controller61US 4,633,905 A1987
- Metered drop push button dispenser system58US 7,874,467 B2ReSeal International Limited Partnership · 2011
- Universal positive shut off, metered water control system for use with flush toilet tanks43US 5,134,729 A1992