F02C 3/04
Gas-turbine plants characterised by the use of combustion products as the working
Official title: having a turbine driving a compressor (power transmission arrangements F02C7/36; control of working fluid flow F02C9/16)
F02C3/04 (Gas-turbine plants characterised by the use of combustion products as the working) appears on 3,639 US grants and 4,311 published applications in this corpus.
Search patents in F02C- Granted patents
- 3,639
- Published applications
- 4,311
- Assignees
- 413
- Inventors
- 5,092
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 10 | 0 |
| 1977 | 12 | 0 |
| 1978 | 7 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 4 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 6 | 0 |
| 1988 | 4 | 0 |
| 1989 | 21 | 0 |
| 1990 | 16 | 0 |
| 1991 | 9 | 0 |
| 1992 | 22 | 0 |
| 1993 | 12 | 0 |
| 1994 | 13 | 0 |
| 1995 | 7 | 0 |
| 1996 | 4 | 0 |
| 1997 | 8 | 0 |
| 1998 | 7 | 0 |
| 1999 | 9 | 0 |
| 2000 | 15 | 0 |
| 2001 | 19 | 1 |
| 2002 | 15 | 11 |
| 2003 | 17 | 23 |
| 2004 | 19 | 23 |
| 2005 | 14 | 21 |
| 2006 | 14 | 46 |
| 2007 | 17 | 44 |
| 2008 | 19 | 56 |
| 2009 | 33 | 65 |
| 2010 | 34 | 57 |
| 2011 | 58 | 49 |
| 2012 | 53 | 65 |
| 2013 | 47 | 143 |
| 2014 | 69 | 140 |
| 2015 | 84 | 257 |
| 2016 | 87 | 568 |
| 2017 | 146 | 555 |
| 2018 | 348 | 494 |
| 2019 | 507 | 336 |
| 2020 | 534 | 352 |
| 2021 | 343 | 235 |
| 2022 | 282 | 163 |
| 2023 | 213 | 168 |
| 2024 | 203 | 162 |
| 2025 | 159 | 141 |
| 2026 | 86 | 136 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F02C 3/107With two or more rotors connected by power transmission800
- F02C 3/06The compressor comprising only axial stages676
- F02C 3/10With another turbine driving an output shaft but not driving the compressor456
- F02C 3/08The compressor comprising at least one radial stage262
- F02C 3/13Having variable working fluid interconnections between turbines or compressors or stages of173
- F02C 3/045Having compressor and turbine passages in a single rotor-module146
- F02C 3/055The compressor being of the positive-displacement type26
Recent patents
- Fluid injection system and method for mitigating rotating stall in turbine engine29 Sep 2026US 12,747,705 B2GE Vernova Infrastructure Technology LLC
- Turbine engine having a compression section22 Sep 2026US 12,742,419 B1General Electric Company
- Additively manufactured gas turbine engine and ventilator15 Sep 2026US 12,735,995 B2Technion Research & Development Foundation Limited
- Ultra-micro gas turbine generator15 Sep 2026US 12,736,007 B2
- High temperature anti-ice systems for aircraft engines8 Sep 2026US 12,729,645 B2General Electric Company
- Gas turbine engine8 Oct 2026US 2026/0309076 A1GE Avio S. r. l.
- Variable bleed valve assemblies8 Oct 2026US 2026/0309077 A1General Electric Company
- Gas turbine engine with improved heat management8 Oct 2026US 2026/0309080 A1ROLLS-ROYCE plc
- Turbofan engine including a fan actuation system8 Oct 2026US 2026/0309162 A1General Electric Company
- Turbofan engine converted from producing thrust power to producing shaft power and corresponding method1 Oct 2026US 2026/0298135 A1TJet Holdings Inc.
Most cited
By later US patents
- Aircraft engine with inter-turbine engine frame supported counter rotating low pressure turbine rotors329US 6,619,030 B1General Electric Company · 2003
- Geared counterrotating turbine/fan propulsion system226US 5,010,729 AGeneral Electric Company · 1991
- Systems and methods for a mobile power plant with improved mobility and reduced trailer count223US 10,030,579 B2General Electric Company · 2018
- Gas turbine engine rotor support system219US 5,361,580 AGeneral Electric Company · 1994
- Systems and methods for a mobile power plant with improved mobility and reduced trailer count208US 10,184,397 B2General Electric Company · 2019