F16K 31/522
Comprising a tap or cock
Official title: {comprising a tap or cock}
F16K31/522 (Comprising a tap or cock) appears on 15 US grants and 13 published applications in this corpus.
Search patents in F16K- Granted patents
- 15
- Published applications
- 13
- Assignees
- 12
- Inventors
- 37
- Latest grant
- 26 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 1 |
| 2012 | 0 | 0 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 0 | 0 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 1 |
| 2020 | 2 | 5 |
| 2021 | 3 | 1 |
| 2022 | 2 | 1 |
| 2023 | 2 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 2 |
| 2026 | 1 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Tank car bottom outlet valve operating assembly26 May 2026US 12,638,100 B2Trinity Rail Group, LLC
- Valve control device21 Oct 2025US 12,449,056 B2Norden Machinery AB
- Hydraulic low-torque valve conversion apparatus and method29 Aug 2023US 11,739,857 B2Wright's IP Holdings, LLC
- Flow control switch valve30 May 2023US 11,662,030 B2Beijing Kohler Ltd.
- Weight-actuated spring-biased valve22 Feb 2022US 11,255,453 B2Prodew, Inc.
- Tube lifter with ventilation valve16 Apr 2026US 2026/0104099 A1J. Schmalz GmbH
- Power-assisted track stop valve23 Oct 2025US 2025/0327533 A1
- Tank car bottom outlet valve operating assembly17 Apr 2025US 2025/0122948 A1Trinity Rail Group, LLC
- Valve control device19 Dec 2024US 2024/0418293 A1Norden Machinery AB
- Hydraulic Low-Torque Valve Conversion Apparatus and Method17 Nov 2022US 2022/0364657 A1Wright's IP Holdings, LLC
Most cited
By later US patents
- Low power valve actuator48US 5,085,401 AH. L. Ledeen Associates · 1992
- Rotary valve actuator with high-low-high torque linkage5US 5,975,487 AFisher Controls International LLC · 1999
- Flow control switch valve3US 11,002,371 B2Beijing Kohler Ltd. · 2021
- Actuator adapter plate3US 9,360,131 B2Emerson Process Management Regulator Technologies, Inc. · 2016
- Winterizing bypass valve system2US 10,648,752 B12020