Y10T 137/7925
Piston-type valves
Y10T137/7925 (Piston-type valves) appears on 239 US grants and 159 published applications in this corpus.
Search patents in Y10T- Granted patents
- 239
- Published applications
- 159
- Assignees
- 169
- Inventors
- 426
- Latest grant
- 21 Apr 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 3 | 0 |
| 1978 | 3 | 0 |
| 1979 | 7 | 0 |
| 1980 | 0 | 0 |
| 1981 | 6 | 0 |
| 1982 | 4 | 0 |
| 1983 | 2 | 0 |
| 1984 | 2 | 0 |
| 1985 | 4 | 0 |
| 1986 | 3 | 0 |
| 1987 | 11 | 0 |
| 1988 | 10 | 0 |
| 1989 | 6 | 0 |
| 1990 | 1 | 0 |
| 1991 | 4 | 0 |
| 1992 | 2 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 1 | 2 |
| 2002 | 4 | 4 |
| 2003 | 6 | 9 |
| 2004 | 4 | 8 |
| 2005 | 11 | 10 |
| 2006 | 1 | 10 |
| 2007 | 7 | 10 |
| 2008 | 9 | 8 |
| 2009 | 3 | 12 |
| 2010 | 4 | 12 |
| 2011 | 10 | 10 |
| 2012 | 9 | 10 |
| 2013 | 11 | 9 |
| 2014 | 15 | 6 |
| 2015 | 6 | 11 |
| 2016 | 8 | 3 |
| 2017 | 4 | 3 |
| 2018 | 5 | 1 |
| 2019 | 4 | 2 |
| 2020 | 0 | 2 |
| 2021 | 0 | 1 |
| 2022 | 5 | 5 |
| 2023 | 5 | 6 |
| 2024 | 5 | 1 |
| 2025 | 3 | 2 |
| 2026 | 2 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Hydraulic fluid release valve assemblies21 Apr 2026US 12,607,271 B2Roadtek Enterprises Inc.
- Systems and methods for piston check valves24 Feb 2026US 12,560,252 B2SCV Valve, LLC
- Spring controlling valve22 Jul 2025US 12,366,244 B2Vulcan Industrial Holdings, LLC
- Flow control valve22 Apr 2025US 12,281,716 B2The Bentley Group Ltd.
- Fluid-damped valve11 Mar 2025US 12,247,637 B2AirSpayce Pty Ltd
- Systems and methods for piston check valves18 Jun 2026US 2026/0168584 A1SCV Valve, LLC
- Spring controlling valve28 May 2026US 2026/0146601 A1Vulcan Industrial Holdings, LLC
- Orifice check valve25 Dec 2025US 2025/0389338 A1
- Hydraulic fluid release valve assemblies25 Sep 2025US 2025/0297688 A1Rubicon Inc.
- Systems and methods for piston check valves14 Mar 2024US 2024/0084905 A1SCV Valve, LLC
Most cited
By later US patents
- Low head to stem ratio poppet valve425US 9,309,978 B2Dresser-Rand Company · 2016
- Over pressure relief system for fluid ends217US 10,082,137 B2Caterpillar Inc. · 2018
- Valve having opposed curved sealing surfaces on a valve member and a valve seat to facilitate effective sealing160US 10,094,366 B2National Oilwell Varco, L. P. · 2018
- Closure device with self-aligning poppet69US 6,978,800 B2Colder Products Company · 2005
- Check valve assembly for high-pressure applications55US 5,241,986 A1993