Y10T 137/3476
Internal servo-motor with internal pilot valve
Y10T137/3476 (Internal servo-motor with internal pilot valve) appears on 31 US grants and 15 published applications in this corpus.
Search patents in Y10T- Granted patents
- 31
- Published applications
- 15
- Assignees
- 19
- Inventors
- 44
- Latest grant
- 2 Sep 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 2 | 0 |
| 1977 | 1 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 1 |
| 2006 | 0 | 0 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 2 |
| 2011 | 0 | 1 |
| 2012 | 2 | 1 |
| 2013 | 1 | 1 |
| 2014 | 3 | 0 |
| 2015 | 1 | 0 |
| 2016 | 0 | 1 |
| 2017 | 1 | 2 |
| 2018 | 1 | 1 |
| 2019 | 1 | 1 |
| 2020 | 5 | 1 |
| 2021 | 2 | 0 |
| 2022 | 0 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 1 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Solenoid valve2 Sep 2025US 12,404,948 B2Hydrotek Corporation
- Direct-acting valve23 Feb 2021US 10,927,963 B2Rohr, Inc.
- Poppet valve system and process12 Jan 2021US 10,890,259 B2Dukes Aerospace, Inc.
- Pneumatic controllers, pneumatically controlled inline valves, and methods of cooling pneumatic controllers10 Nov 2020US 10,830,372 B1Hamilton Sunstrand Corporation
- Inline valves, gas turbine engines with inline bleed valves, and methods controlling flow through inline valves3 Nov 2020US 10,823,087 B1Hamilton Sunstrand Corporation
- Solenoid valve30 May 2024US 2024/0175514 A1Hydrotek Corporation
- Ducted gas turbine engine stability bleed valve with passive and active shutoff26 Mar 2020US 2020/0095944 A1United Technologies Corporation
- Poppet valve system and process23 May 2019US 2019/0154157 A1Dukes Aerospace, Inc.
- Anti-ice control systems and methods21 Jun 2018US 2018/0170556 A1Rohr, Inc.
- Axial valve for controlling the differential pressure between a delivery branch and a return branch of a hydraulic circuit14 Sep 2017US 2017/0261010 A1Watts Industries Italia S.R.L.
Most cited
By later US patents
- Valving for engine cooling system flushing apparatus and method30US 4,083,399 AWynn Oil Company · 1978
- Engine cooling system flushing apparatus and method29US 4,109,703 AWynn Oil Company · 1978
- Fast opening valve18US 4,732,189 AThe Secretary of State for Defence in Her Britannic Majesty's Government of the United Kingdom of Great Britain and Northern Ireland · 1988
- Regulating valve17US 3,945,393 A1976
- Diaphragm valves13US 3,974,849 A1976