F16K 31/001
Actuated by volume variations caused by an element soluble in a fluid
Official title: {actuated by volume variations caused by an element soluble in a fluid or swelling in contact with a fluid (life-boats B63C9/24)}
F16K31/001 (Actuated by volume variations caused by an element soluble in a fluid) appears on 61 US grants and 45 published applications in this corpus.
Search patents in F16K- Granted patents
- 61
- Published applications
- 45
- Assignees
- 45
- Inventors
- 138
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 2 |
| 2003 | 1 | 0 |
| 2004 | 2 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 0 |
| 2007 | 2 | 3 |
| 2008 | 1 | 1 |
| 2009 | 2 | 1 |
| 2010 | 1 | 5 |
| 2011 | 4 | 1 |
| 2012 | 0 | 1 |
| 2013 | 4 | 3 |
| 2014 | 1 | 3 |
| 2015 | 2 | 0 |
| 2016 | 2 | 0 |
| 2017 | 1 | 3 |
| 2018 | 2 | 2 |
| 2019 | 1 | 2 |
| 2020 | 0 | 4 |
| 2021 | 3 | 2 |
| 2022 | 3 | 2 |
| 2023 | 3 | 0 |
| 2024 | 1 | 4 |
| 2025 | 4 | 3 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Control valves and method of plant growing using flow control46US 5,273,066 A1993
- Emergency valve incorporating thermal foamable plastic material40US 4,072,159 A1978
- Temperature sensitive valve for atmosphere control for film packaged products36US 5,443,851 ACommonwealth Scientific & Industrial Research Org. · 1995
- Filter cartridge, particularly for jug water purifiers32US 6,428,687 B1Laica S.P.A. · 2002
- Automatic water or liquid safety valve assembly30US 4,305,420 A1981