F16K 39/024
Using an auxiliary valve on the main valve
Official title: {using an auxiliary valve on the main valve}
F16K39/024 (Using an auxiliary valve on the main valve) appears on 162 US grants and 167 published applications in this corpus.
Search patents in F16K- Granted patents
- 162
- Published applications
- 167
- Assignees
- 121
- Inventors
- 357
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 3 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 2 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 2 |
| 2002 | 4 | 7 |
| 2003 | 5 | 2 |
| 2004 | 4 | 4 |
| 2005 | 1 | 1 |
| 2006 | 3 | 3 |
| 2007 | 2 | 3 |
| 2008 | 0 | 1 |
| 2009 | 1 | 3 |
| 2010 | 1 | 10 |
| 2011 | 2 | 6 |
| 2012 | 6 | 6 |
| 2013 | 6 | 15 |
| 2014 | 6 | 15 |
| 2015 | 9 | 12 |
| 2016 | 15 | 10 |
| 2017 | 4 | 7 |
| 2018 | 5 | 7 |
| 2019 | 9 | 9 |
| 2020 | 12 | 11 |
| 2021 | 11 | 8 |
| 2022 | 6 | 10 |
| 2023 | 7 | 4 |
| 2024 | 7 | 6 |
| 2025 | 7 | 3 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Active balancing valve for a refrigeration and/or air-conditioning application31 Mar 2026US 12,590,646 B2Danfoss A/S
- Method for operating a fluid system and fluid system3 Feb 2026US 12,540,684 B2Festo AG & Co.
- Steam valve and power generation system30 Dec 2025US 12,510,186 B2Mitsubishi Heavy Industries, Ltd.
- Two-way angle valve capable of buffering deflation2 Dec 2025US 12,486,918 B2King Lai Hygienic Materials Co., Ltd
- Flow Rate Control Valve11 Jun 2026US 2026/0160358 A1Dong-A University Research Foundation for Industry-Academy Cooperation
- Flow control valve5 Feb 2026US 2026/0036219 A1
- Two-way angle valve capable of buffering deflation11 Sep 2025US 2025/0283546 A1King Lai Hygienic Materials Co., Ltd
- Method for operating a fluid system and fluid system15 May 2025US 2025/0155044 A1Festo AG & Co.
- Valve20 Feb 2025US 2025/0060045 A1Aisan Kogyo Kabushiki Kaisha
Most cited
By later US patents
- Liquid distribution operable by solenoid valves93US 5,605,173 AEaton Corporation · 1997
- Combined valve40US 4,481,776 AHitachi, Ltd. · 1984
- Fluid control38US 7,147,203 B22006
- Electromagnetically controllable valve arrangement37US 5,735,582 ARobert Bosch GmbH · 1998
- Valve system timing device for pipes carrying liquid under pressure36US 4,615,354 AS.I.G.M.A. - Societa Idraulica Generale Macchine Accessori · 1986