F16K 17/065
With differential piston
Official title: {with differential piston}
F16K17/065 (With differential piston) appears on 83 US grants and 78 published applications in this corpus.
Search patents in F16K- Granted patents
- 83
- Published applications
- 78
- Assignees
- 77
- Inventors
- 188
- Latest grant
- 2 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 2 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 1 |
| 2005 | 1 | 2 |
| 2006 | 2 | 5 |
| 2007 | 1 | 3 |
| 2008 | 2 | 1 |
| 2009 | 2 | 0 |
| 2010 | 0 | 4 |
| 2011 | 1 | 4 |
| 2012 | 1 | 3 |
| 2013 | 2 | 5 |
| 2014 | 4 | 5 |
| 2015 | 5 | 4 |
| 2016 | 6 | 3 |
| 2017 | 3 | 6 |
| 2018 | 4 | 6 |
| 2019 | 5 | 4 |
| 2020 | 7 | 5 |
| 2021 | 4 | 5 |
| 2022 | 3 | 2 |
| 2023 | 5 | 3 |
| 2024 | 1 | 2 |
| 2025 | 4 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
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- Relief valve6 Mar 2025US 2025/0075815 A1Kawasaki Jukogyo Kabushiki Kaisha
- High stability regulator8 Feb 2024US 2024/0044415 A1The Oilgear Company
- Hydrostatically Adjustable Valve and Associated System4 Jan 2024US 2024/0003450 A1Flow Dynamics, LLC
Most cited
By later US patents
- Over pressure relief system for fluid ends217US 10,082,137 B2Caterpillar Inc. · 2018
- Hydraulic pressure control valve53US 5,381,823 ASun Hydraulics, LLC · 1995
- Marine riser anti-collapse valve50US 4,719,937 AHydril Company · 1988
- Pressure relief valve49US 4,106,522 APoclain, Societe Anonyme · 1978
- Directing-acting, differential piston relief valve27US 4,742,846 ASun Hydraulics, LLC · 1988