F16K 43/001
An auxiliary valve being actuated independently of the main valve
Official title: {an auxiliary valve being actuated independently of the main valve}
F16K43/001 (An auxiliary valve being actuated independently of the main valve) appears on 60 US grants and 62 published applications in this corpus.
Search patents in F16K- Granted patents
- 60
- Published applications
- 62
- Assignees
- 49
- Inventors
- 118
- Latest grant
- 14 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 3 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 2 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 3 |
| 2005 | 2 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 1 | 1 |
| 2009 | 0 | 1 |
| 2010 | 0 | 1 |
| 2011 | 0 | 1 |
| 2012 | 0 | 1 |
| 2013 | 0 | 2 |
| 2014 | 0 | 1 |
| 2015 | 3 | 4 |
| 2016 | 1 | 2 |
| 2017 | 1 | 4 |
| 2018 | 2 | 5 |
| 2019 | 2 | 1 |
| 2020 | 4 | 7 |
| 2021 | 5 | 5 |
| 2022 | 7 | 6 |
| 2023 | 5 | 2 |
| 2024 | 6 | 7 |
| 2025 | 4 | 5 |
| 2026 | 4 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Sluice valve installation method, and sluice valve installation structure used in sluice valve installation method14 Apr 2026US 12,601,438 B2Waterworks Technology Development Organization Co., Ltd.
- Method and apparatus for valve core installation/removal31 Mar 2026US 12,590,647 B2Fieldpiece Instruments, Inc.
- Valve core removal tool3 Feb 2026US 12,540,689 B2Ocd Innovations, LLC
- Valve assembly with service stop with multiple tool interfaces6 Jan 2026US 12,516,747 B2Kohler Co.
- Tubing retrievable safety valve assembly with secondary flapper and seat6 May 2025US 12,291,941 B2Halliburton Energy Services.Inc.
- Multi-port core removal tool11 Jun 2026US 2026/0158602 A1
- Valve assembly with service stop with multiple tool interfaces21 May 2026US 2026/0139759 A1Kohler Co.
- Valve core removal tool16 Oct 2025US 2025/0320933 A1Ocd Innovations, LLC
- Sluice Valve Installation Method, and Sluice Valve Installation Structure Used in Sluice Valve Installation Method4 Sep 2025US 2025/0277552 A1Waterworks Technology Development Organization Co., Ltd.
- Water heater drain valve14 Aug 2025US 2025/0257809 A1NIBCO Inc.
Most cited
By later US patents
- Valve assembly40US 4,403,626 AContinental Disc Corporation · 1983
- Backflow prevention and method of manufacture29US 8,997,772 B2Zurn Industries, LLC · 2015
- Insertion valve and installation method23US 7,225,827 B2Occlude · 2007
- Shower bath tap valve assembly18US 6,880,565 B2Globe Union Industrial Crop. · 2005
- Manifolds and compound valves with removable valve assemblies15US 5,226,449 ATri-Clover, Inc. · 1993