F16K 15/18
Check valves: with actuating mechanism
Official title: with actuating mechanism; Combined check valves and actuated valves
F16K15/18 (Check valves: with actuating mechanism) appears on 900 US grants and 842 published applications in this corpus.
Search patents in F16K- Granted patents
- 900
- Published applications
- 842
- Assignees
- 595
- Inventors
- 1,725
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 7 | 0 |
| 1977 | 6 | 0 |
| 1978 | 5 | 0 |
| 1979 | 3 | 0 |
| 1980 | 4 | 0 |
| 1981 | 9 | 0 |
| 1982 | 4 | 0 |
| 1983 | 4 | 0 |
| 1984 | 6 | 0 |
| 1985 | 5 | 0 |
| 1986 | 6 | 0 |
| 1987 | 13 | 0 |
| 1988 | 4 | 0 |
| 1989 | 6 | 0 |
| 1990 | 10 | 0 |
| 1991 | 11 | 0 |
| 1992 | 9 | 0 |
| 1993 | 14 | 0 |
| 1994 | 10 | 0 |
| 1995 | 10 | 0 |
| 1996 | 8 | 0 |
| 1997 | 9 | 0 |
| 1998 | 10 | 0 |
| 1999 | 13 | 0 |
| 2000 | 23 | 0 |
| 2001 | 11 | 3 |
| 2002 | 10 | 18 |
| 2003 | 19 | 28 |
| 2004 | 12 | 17 |
| 2005 | 10 | 17 |
| 2006 | 13 | 28 |
| 2007 | 14 | 21 |
| 2008 | 12 | 17 |
| 2009 | 10 | 11 |
| 2010 | 12 | 26 |
| 2011 | 11 | 19 |
| 2012 | 19 | 18 |
| 2013 | 14 | 16 |
| 2014 | 12 | 31 |
| 2015 | 27 | 61 |
| 2016 | 31 | 38 |
| 2017 | 49 | 73 |
| 2018 | 43 | 60 |
| 2019 | 63 | 55 |
| 2020 | 59 | 72 |
| 2021 | 54 | 45 |
| 2022 | 50 | 45 |
| 2023 | 39 | 47 |
| 2024 | 49 | 33 |
| 2025 | 34 | 24 |
| 2026 | 14 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Connector, connector assembly, liquid cooled plate, and liquid cooled server6 Oct 2026US 12,753,979 B2Bitmain Technologies Inc.
- Check valve having pivoting link29 Sep 2026US 12,747,799 B2Zurn Water, LLC
- Air valve, inflation, and deflation apparatuses and methods29 Sep 2026US 12,747,801 B2Belgravia Wood Limited
- Ball for a valve assembly8 Sep 2026US 12,729,769 B2Caterpillar Inc.
- Spigotless variable-temperature fluid (e.g., water) valve openable with a dispensing device and with optional back-pressure relief1 Sep 2026US 12,723,675 B2Aquor Water Systems, Incorporated
- High pressure valve1 Oct 2026US 2026/0298346 A1Arianegroup SAS
- Inflation valve assembly27 Aug 2026US 2026/0251229 A1Purple Line Limited
- Automatic shut off valve20 Aug 2026US 2026/0243352 A1Enerco Group, Inc.
- One-piece fill valve for powered fastener driver30 Jul 2026US 2026/0216852 A1
- Ball valve with a retaining system16 Jul 2026US 2026/0201961 A1Castel, Inc.
Most cited
By later US patents
- Apparatus and method for manipulating and anchoring tissue822US 5,417,691 A1995
- Normally closed automatic reflux valve335US 4,683,916 ABurron Medical Inc. · 1987
- Luer-activated check valve281US 5,535,785 ANypro Inc. · 1996
- Slit-type swabable valve236US 6,651,956 B2Halkey-Roberts Corporation · 2003
- Combined shut off and check valve210US 4,649,952 AJogler, Inc. · 1987