F16K 15/142
The closure elements being shaped as solids of revolution
Official title: {the closure elements being shaped as solids of revolution, e.g. toroidal or cylindrical rings}
F16K15/142 (The closure elements being shaped as solids of revolution) appears on 157 US grants and 87 published applications in this corpus.
Search patents in F16K- Granted patents
- 157
- Published applications
- 87
- Assignees
- 124
- Inventors
- 274
- Latest grant
- 10 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 2 | 0 |
| 1979 | 3 | 0 |
| 1980 | 8 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 6 | 0 |
| 1986 | 3 | 0 |
| 1987 | 8 | 0 |
| 1988 | 1 | 0 |
| 1989 | 4 | 0 |
| 1990 | 3 | 0 |
| 1991 | 4 | 0 |
| 1992 | 4 | 0 |
| 1993 | 1 | 0 |
| 1994 | 5 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 4 | 0 |
| 1998 | 3 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 6 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 3 |
| 2004 | 4 | 3 |
| 2005 | 3 | 6 |
| 2006 | 1 | 8 |
| 2007 | 3 | 4 |
| 2008 | 3 | 1 |
| 2009 | 4 | 3 |
| 2010 | 1 | 3 |
| 2011 | 5 | 2 |
| 2012 | 3 | 4 |
| 2013 | 6 | 7 |
| 2014 | 3 | 3 |
| 2015 | 4 | 4 |
| 2016 | 5 | 3 |
| 2017 | 3 | 5 |
| 2018 | 1 | 6 |
| 2019 | 7 | 4 |
| 2020 | 4 | 2 |
| 2021 | 4 | 2 |
| 2022 | 2 | 4 |
| 2023 | 2 | 3 |
| 2024 | 3 | 1 |
| 2025 | 1 | 2 |
| 2026 | 2 | 3 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- Slit valve medical catheter142US 4,973,319 ATherex Corp. · 1990
- Check valve catheter109US 4,657,536 ARegents of the University of Minnesota · 1987
- Valve arrangement especially suitable for preventing introduction of air into vascular systems80US 4,568,333 A1986
- Flow control aerator61US 4,000,857 A1977
- Connector for transferring fluid and method of use61US 9,393,398 B2CareFusion 303, Inc. · 2016