G05D 16/187
Using pistons within the main valve
Official title: {using pistons within the main valve}
G05D16/187 (Using pistons within the main valve) appears on 66 US grants and 39 published applications in this corpus.
Search patents in G05D- Granted patents
- 66
- Published applications
- 39
- Assignees
- 51
- Inventors
- 93
- Latest grant
- 9 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 2 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 3 | 0 |
| 1992 | 3 | 0 |
| 1993 | 5 | 0 |
| 1994 | 3 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 1 | 0 |
| 2001 | 2 | 1 |
| 2002 | 1 | 0 |
| 2003 | 1 | 0 |
| 2004 | 0 | 2 |
| 2005 | 0 | 1 |
| 2006 | 2 | 0 |
| 2007 | 1 | 4 |
| 2008 | 3 | 2 |
| 2009 | 0 | 3 |
| 2010 | 3 | 2 |
| 2011 | 2 | 2 |
| 2012 | 1 | 0 |
| 2013 | 2 | 0 |
| 2014 | 0 | 1 |
| 2015 | 0 | 1 |
| 2016 | 2 | 1 |
| 2017 | 0 | 2 |
| 2018 | 2 | 2 |
| 2019 | 2 | 6 |
| 2020 | 5 | 0 |
| 2021 | 2 | 1 |
| 2022 | 0 | 3 |
| 2023 | 2 | 1 |
| 2024 | 2 | 2 |
| 2025 | 3 | 1 |
| 2026 | 0 | 1 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
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- Media handling system and related method2 Apr 2026US 2026/0093277 A1Global Met Tech Pty Ltd
- High stability regulator21 Aug 2025US 2025/0264162 A1
- A media handling system and related method31 Oct 2024US 2024/0361786 A1Global Met Tech Pty Ltd
- High stability regulator8 Feb 2024US 2024/0044415 A1The Oilgear Company
- Pressure actuated switching valve27 Jul 2023US 2023/0235831 A1Hamilton Sundstrand Corporation
Most cited
By later US patents
- Fluid control valve36US 7,225,830 B12007
- High pressure regulator valve34US 4,620,562 AButterworth, Inc. · 1986
- High pressure regulating valve29US 5,439,027 AHalliburton Company · 1995
- Priority valve20US 4,556,078 ADeere & Company · 1985
- Fail safe hydraulic piloted pressure reducing and regulating valve20US 4,565,349 AKoomey, Inc. · 1986