F16K 31/52441
With a pivoted disc or flap
Official title: {with a pivoted disc or flap}
F16K31/52441 (With a pivoted disc or flap) appears on 41 US grants and 40 published applications in this corpus.
Search patents in F16K- Granted patents
- 41
- Published applications
- 40
- Assignees
- 38
- Inventors
- 78
- Latest grant
- 29 Jul 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 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 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 1 | 1 |
| 2007 | 0 | 0 |
| 2008 | 1 | 2 |
| 2009 | 2 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 1 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 1 |
| 2015 | 1 | 3 |
| 2016 | 4 | 3 |
| 2017 | 0 | 4 |
| 2018 | 5 | 2 |
| 2019 | 2 | 2 |
| 2020 | 2 | 3 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 4 | 6 |
| 2024 | 4 | 5 |
| 2025 | 4 | 1 |
By publication year. Applications have been published since 2001.
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Most cited
By later US patents
- Dual shaft alternating drive actuator16US 9,927,044 B2KMC Controls, Inc. · 2018
- Cam actuated butterfly valve10US 4,285,499 AEaton Corporation · 1981
- Triple offset butterfly pressure relief valve9US 9,273,789 B2Enviro Valve (US) Inc. · 2016
- Center link disc valve8US 4,280,681 AKoppers Company, Inc. · 1981
- Valve for inflation/deflation7US 10,641,403 B2Argon Technologies, Inc. · 2020