F01D 17/20
Devices dealing with sensing elements or final actuators or transmitting means between
Official title: Devices dealing with sensing elements or final actuators or transmitting means between them, e.g. power-assisted (sensing elements alone F01D17/02; final actuators alone F01D17/10)
F01D17/20 (Devices dealing with sensing elements or final actuators or transmitting means between) appears on 397 US grants and 326 published applications in this corpus.
Search patents in F01D- Granted patents
- 397
- Published applications
- 326
- Assignees
- 127
- Inventors
- 837
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 18 | 0 |
| 1977 | 16 | 0 |
| 1978 | 8 | 0 |
| 1979 | 7 | 0 |
| 1980 | 9 | 0 |
| 1981 | 9 | 0 |
| 1982 | 8 | 0 |
| 1983 | 7 | 0 |
| 1984 | 5 | 0 |
| 1985 | 5 | 0 |
| 1986 | 5 | 0 |
| 1987 | 5 | 0 |
| 1988 | 3 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 3 | 0 |
| 1992 | 4 | 0 |
| 1993 | 2 | 0 |
| 1994 | 2 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 1 | 0 |
| 2002 | 1 | 2 |
| 2003 | 2 | 1 |
| 2004 | 2 | 2 |
| 2005 | 1 | 2 |
| 2006 | 1 | 1 |
| 2007 | 3 | 8 |
| 2008 | 1 | 6 |
| 2009 | 3 | 8 |
| 2010 | 4 | 13 |
| 2011 | 7 | 17 |
| 2012 | 16 | 14 |
| 2013 | 12 | 24 |
| 2014 | 15 | 9 |
| 2015 | 8 | 27 |
| 2016 | 18 | 29 |
| 2017 | 19 | 18 |
| 2018 | 22 | 27 |
| 2019 | 26 | 15 |
| 2020 | 24 | 31 |
| 2021 | 25 | 22 |
| 2022 | 17 | 18 |
| 2023 | 15 | 9 |
| 2024 | 17 | 7 |
| 2025 | 9 | 10 |
| 2026 | 5 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aircraft with boundary layer ingestion device having center position between center position of fuselage and center position of rear end portion of fuselage12 May 2026US 12,623,786 B2Japan Aerospace Exploration Agency
- Fueldraulic heat management system21 Apr 2026US 12,607,147 B2ROLLS-ROYCE plc
- Through-casing guide vane mechanism for gas turbine engines14 Apr 2026US 12,601,278 B1Pratt & Whitney Canada Corp.
- Element and method for compensation of tolerances and/or gap widths of a device and engine, assembly method for a shaft/hub connection13 Jan 2026US 12,523,160 B2Universität der Bundeswehr München
- Accommodation for mismatch in guide vane feedback via undesired engine behavior6 Jan 2026US 12,516,636 B1Pratt & Whitney Canada Corp.
- Active tip clearance control system for aircraft engine27 Aug 2026US 2026/0251072 A1Pratt & Whitney Canada Corp.
- Fueldraulic heat management system30 Jul 2026US 2026/0218659 A1ROLLS-ROYCE plc
- Articulated proximity measurement30 Jul 2026US 2026/0219034 A1Rtx Corporation
- Turbo engine including a system to control pitch of a propeller blade4 Jun 2026US 2026/0153033 A1General Electric Company
- Modulated air flow heat exchanger system in bi-fi duct9 Apr 2026US 2026/0098500 A1Rtx Corporation
Most cited
By later US patents
- Control system with adaptive process controllers especially adapted for electric power plant operation84US 3,939,328 AWestinghouse Electric Corp. · 1976
- Adjustable gain controller for valve position control loop and method for reducing jitter70US 4,556,956 AGeneral Electric Company · 1985
- Dedicated microcomputer-based control system for steam turbine-generators60US 4,280,060 AGeneral Electric Company · 1981
- System and method for starting, synchronizing and operating a steam turbine with digital computer control56US 4,267,458 AWestinghouse Electric Corp. · 1981
- Plant unit master control for fossil fired boiler implemented with a digital computer56US 4,445,180 AWestinghouse Electric Corp. · 1984