F05D 2270/56
By hydraulic means
Official title: by hydraulic means, e.g. hydraulic valves within a hydraulic circuit
F05D2270/56 (By hydraulic means) appears on 35 US grants and 42 published applications in this corpus.
Search patents in F05D- Granted patents
- 35
- Published applications
- 42
- Assignees
- 29
- Inventors
- 78
- Latest grant
- 25 Nov 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 2006 | 0 | 1 |
| 2007 | 1 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 3 |
| 2010 | 1 | 1 |
| 2011 | 0 | 2 |
| 2012 | 2 | 0 |
| 2013 | 2 | 1 |
| 2014 | 0 | 1 |
| 2015 | 1 | 1 |
| 2016 | 1 | 1 |
| 2017 | 4 | 2 |
| 2018 | 0 | 1 |
| 2019 | 2 | 7 |
| 2020 | 2 | 4 |
| 2021 | 3 | 3 |
| 2022 | 3 | 2 |
| 2023 | 4 | 5 |
| 2024 | 4 | 4 |
| 2025 | 5 | 1 |
| 2026 | 0 | 1 |
By publication year. 2026 runs to 8 Oct.
Recent patents
- Multi-function fluid control valve25 Nov 2025US 12,480,596 B2Pratt & Whitney Canada Corp.
- Blower system for bidirectional flow5 Aug 2025US 12,377,987 B2ROLLS-ROYCE plc
- Turbofan provided with a fastening assembly arranged on a fan casing29 Apr 2025US 12,286,892 B2Safran Aircraft Engines
- Combination valve consisting of quick-acting valve and control valve for a steam circuit and SIL 3 certified safety circuit4 Mar 2025US 12,241,554 B2Turventil GmbH & Co. KG
- System and method for in situ verification of redundant electro-hydraulic servo valve (EHSV) operational status in redundant flow control systems21 Jan 2025US 12,203,419 B2Woodward, Inc.
- Hydraulic or pneumatic actuator for trip valves of steam turbines or turbo-expanders7 May 2026US 2026/0126127 A1Nuovo Pignone Tecnologie Srl
- Multi-function fluid control valve24 Jul 2025US 2025/0237320 A1Pratt & Whitney Canada Corp.
- Two servovalve thrust reverser actuator system29 Aug 2024US 2024/0287948 A1Woodward, Inc.
- Turbofan provided with a fastening assembly arranged on a fan casing4 Jul 2024US 2024/0218810 A1Safran Aircraft Engines
- System and method for in situ verification of redundant electro-hydraulic servo valve (ehsv) operational status in redundant flow control systems30 May 2024US 2024/0175399 A1Woodward, Inc.
Most cited
By later US patents
- Control of load rejection16US 9,334,750 B2ALSTOM Technology Ltd · 2016
- Engine fuel control system14US 9,617,923 B2Rolls-Royce Controls and Data Services Limited · 2017
- Fluid-powered thrust reverser actuation system speed control11US 8,170,771 B2Honeywell International Inc. · 2012
- Fuel supply system with combined metering and shutoff valve9US 11,421,600 B1Hamilton Sundstrand Corporation · 2022
- Valve system for a gas turbine engine9US 8,286,416 B2Pratt & Whitney Rocketdyne, Inc. · 2012