F05D 2270/40
Type of control system
F05D2270/40 (Type of control system) appears on 437 US grants and 524 published applications in this corpus.
Search patents in F05D- Granted patents
- 437
- Published applications
- 524
- Assignees
- 125
- Inventors
- 1,081
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 1 | 1 |
| 2003 | 2 | 2 |
| 2004 | 7 | 8 |
| 2005 | 2 | 7 |
| 2006 | 4 | 6 |
| 2007 | 6 | 7 |
| 2008 | 6 | 12 |
| 2009 | 5 | 11 |
| 2010 | 9 | 16 |
| 2011 | 3 | 6 |
| 2012 | 12 | 7 |
| 2013 | 10 | 15 |
| 2014 | 9 | 22 |
| 2015 | 10 | 32 |
| 2016 | 20 | 37 |
| 2017 | 28 | 35 |
| 2018 | 28 | 34 |
| 2019 | 34 | 37 |
| 2020 | 36 | 48 |
| 2021 | 40 | 51 |
| 2022 | 53 | 34 |
| 2023 | 46 | 27 |
| 2024 | 23 | 31 |
| 2025 | 36 | 19 |
| 2026 | 6 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Engine mount system for a gas turbine engine16 Jun 2026US 12,655,812 B2Rtx Corporation
- Electronically driven lubrication system on gas turbine engines2 Jun 2026US 12,644,411 B2Rtx Corporation
- Hybrid-electric propulsion system equipped with a coupler for switching between modes of operation5 May 2026US 12,618,385 B2General Electric Company
- Device for assisting with regulation of propellers of aeronautical turbomachinery31 Mar 2026US 12,589,859 B2Safran Aircraft Engines
- Compliant shroud designs with variable stiffness17 Mar 2026US 12,577,882 B2General Electric Company
- Hybrid-electric propulsion system equipped with a coupler for switching between modes of operation17 Sep 2026US 2026/0275941 A1General Electric Company
- Active tip clearance control system for aircraft engine27 Aug 2026US 2026/0251072 A1Pratt & Whitney Canada Corp.
- Active tip clearance control system for aircraft engine27 Aug 2026US 2026/0251073 A1Pratt & Whitney Canada Corp.
- Plant control device and calculation amount changeability determination method30 Jul 2026US 2026/0221771 A1Hitachi, Ltd.
- Eddy current tip timing sensor used for blade-tip deicing23 Jul 2026US 2026/0208866 A1Rtx Corporation
Most cited
By later US patents
- Adaptive model-based control systems and methods for controlling a gas turbine225US 6,823,675 B2General Electric Company · 2004
- Method and system for controlling distortion of turbine case due to thermal variations99US 6,691,019 B2General Electric Company · 2004
- Decision making process and manual for diagnostic trend analysis53US 6,591,182 B1General Electric Company · 2003
- Aircraft gas turbine engine blade tip clearance control52US 8,126,628 B2General Electric Company · 2012
- Gas turbine engine having a multi-variable closed loop controller for regulating tip clearance52US 9,255,492 B2ROLLS-ROYCE plc · 2016