F02C 9/50
With control of working fluid flow
Official title: with control of working fluid flow
F02C9/50 (With control of working fluid flow) appears on 395 US grants and 394 published applications in this corpus.
Search patents in F02C- Granted patents
- 395
- Published applications
- 394
- Assignees
- 98
- Inventors
- 875
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 1 | 0 |
| 1989 | 2 | 0 |
| 1990 | 2 | 0 |
| 1991 | 3 | 0 |
| 1992 | 5 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 3 | 0 |
| 1996 | 3 | 0 |
| 1997 | 3 | 0 |
| 1998 | 1 | 0 |
| 1999 | 2 | 0 |
| 2000 | 1 | 0 |
| 2001 | 3 | 0 |
| 2002 | 3 | 2 |
| 2003 | 3 | 4 |
| 2004 | 4 | 6 |
| 2005 | 4 | 7 |
| 2006 | 6 | 9 |
| 2007 | 7 | 5 |
| 2008 | 5 | 3 |
| 2009 | 2 | 8 |
| 2010 | 2 | 5 |
| 2011 | 2 | 18 |
| 2012 | 11 | 14 |
| 2013 | 9 | 15 |
| 2014 | 13 | 24 |
| 2015 | 11 | 21 |
| 2016 | 18 | 29 |
| 2017 | 17 | 39 |
| 2018 | 27 | 30 |
| 2019 | 35 | 16 |
| 2020 | 26 | 33 |
| 2021 | 22 | 27 |
| 2022 | 31 | 24 |
| 2023 | 29 | 19 |
| 2024 | 31 | 16 |
| 2025 | 15 | 14 |
| 2026 | 12 | 6 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- System and method for overspeed detection and protection in an engine15 Sep 2026US 12,735,993 B2General Electric Company
- Systems and methods for surge margin testing of gas turbine engine using an undersized load component25 Aug 2026US 12,716,815 B2Doosan Enerbility Co., Ltd.
- Actuated frame and tail cone for exhaust channel track selection14 Jul 2026US 12,680,514 B1Rtx Corporation
- Systems and methods for off-grid validation testing with undersized load compressor19 May 2026US 12,631,150 B2Doosan Enerbility Co., Ltd.
- Method and system for configuring operation of an engine7 Apr 2026US 12,595,768 B2Pratt & Whitney Canada Corp.
- Turbo-expander overspeed protection20 Aug 2026US 2026/0243203 A1NET Power LLC
- Aircraft engine power management for large generator loads6 Aug 2026US 2026/0226865 A1Honeywell International Inc.
- Starting open rotor propulsion system during aircraft flight11 Jun 2026US 2026/0159225 A1Rtx Corporation
- Systems and methods for operating an aircraft engine using multiple fuel types30 Apr 2026US 2026/0117704 A1Pratt & Whitney Canada Corp.
- Systems and methods for operating an aircraft engine using multiple fuel types30 Apr 2026US 2026/0117713 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Compressor control device, compressor control system, and compressor control method130US 10,584,645 B2Mitsubishi Heavy Industries Compressor Corporation · 2020
- Gas turbine and a method for controlling a gas turbine120US 7,404,294 B2Volvo Aero Corporation · 2008
- Star combustor with dilution ports in can portions109US 5,628,182 A1997
- Convectively cooled, single stage, fully premixed fuel/air combustor for gas turbine engine modules101US 5,572,862 A1996
- Rapid power response turbine99US 4,529,887 AGeneral Electric Company · 1985