F02C 6/04
Gas-turbine plants providing heated or pressurised working fluid for other apparatus
Official title: Gas-turbine plants providing heated or pressurised working fluid for other apparatus, e.g. without mechanical power output (F02C6/18 takes precedence {; for a fluidised-bed combustor F02C3/205})
F02C6/04 (Gas-turbine plants providing heated or pressurised working fluid for other apparatus) appears on 2,937 US grants and 3,280 published applications in this corpus.
Search patents in F02C- Granted patents
- 2,937
- Published applications
- 3,280
- Assignees
- 579
- Inventors
- 5,316
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 13 | 0 |
| 1977 | 7 | 0 |
| 1978 | 8 | 0 |
| 1979 | 12 | 0 |
| 1980 | 8 | 0 |
| 1981 | 12 | 0 |
| 1982 | 4 | 0 |
| 1983 | 10 | 0 |
| 1984 | 10 | 0 |
| 1985 | 9 | 0 |
| 1986 | 8 | 0 |
| 1987 | 10 | 0 |
| 1988 | 7 | 0 |
| 1989 | 14 | 0 |
| 1990 | 9 | 0 |
| 1991 | 7 | 0 |
| 1992 | 14 | 0 |
| 1993 | 8 | 0 |
| 1994 | 7 | 0 |
| 1995 | 7 | 0 |
| 1996 | 11 | 0 |
| 1997 | 11 | 0 |
| 1998 | 6 | 0 |
| 1999 | 11 | 0 |
| 2000 | 17 | 0 |
| 2001 | 13 | 5 |
| 2002 | 19 | 11 |
| 2003 | 20 | 24 |
| 2004 | 21 | 41 |
| 2005 | 20 | 29 |
| 2006 | 30 | 56 |
| 2007 | 22 | 49 |
| 2008 | 24 | 57 |
| 2009 | 32 | 94 |
| 2010 | 45 | 125 |
| 2011 | 52 | 117 |
| 2012 | 96 | 135 |
| 2013 | 81 | 184 |
| 2014 | 97 | 166 |
| 2015 | 129 | 170 |
| 2016 | 126 | 240 |
| 2017 | 160 | 214 |
| 2018 | 210 | 221 |
| 2019 | 191 | 251 |
| 2020 | 279 | 248 |
| 2021 | 236 | 171 |
| 2022 | 202 | 160 |
| 2023 | 193 | 159 |
| 2024 | 166 | 129 |
| 2025 | 146 | 135 |
| 2026 | 87 | 89 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Motorized compressor device with air bearing having reduced axial and radial stack-up6 Oct 2026US 12,753,707 B2Garrett Transportation I Inc.
- Inducer assembly for a turbine engine29 Sep 2026US 12,746,491 B2General Electric Company
- Buffer air assembly for an aircraft engine22 Sep 2026US 12,742,413 B2Rtx Corporation
- Anti-stall system with a fuel cell22 Sep 2026US 12,742,425 B2General Electric Company
- High temperature anti-ice systems for aircraft engines8 Sep 2026US 12,729,645 B2General Electric Company
- Variable bleed valve assemblies8 Oct 2026US 2026/0309077 A1General Electric Company
- Aircraft exhaust waste heat recovery for icing mitigation1 Oct 2026US 2026/0298141 A1General Electric Company
- Bleed air systems for aircraft engines17 Sep 2026US 2026/0275921 A1Pratt & Whitney Canada Corp.
- System for recovering energy3 Sep 2026US 2026/0258752 A1Primetals Technologies Germany GmbH
- Supercharging assist device and supercharging assist method27 Aug 2026US 2026/0251089 A1Mitsubishi Heavy Industries Engine & Turbocharger, Ltd.
Most cited
By later US patents
- Arrangement for controlling fluid jets injected into a fluid stream1,018US 7,976,213 B2United Technologies Corporation · 2011
- Utilization of energy obtained by substoichiometric combustion of low heating value gases296US 4,299,086 AGulf Research & Development Company · 1981
- In situ combustion process for the recovery of liquid carbonaceous fuels from subterranean formations289US 4,250,962 AGulf Research & Development Company · 1981
- Compressed air energy storage method and system274US 5,537,822 AThe Israel Electric Corporation Ltd. · 1996
- Power plant with carbon dioxide capture and zero pollutant emissions254US 5,724,805 AUniversity of Massachusetts Lowell · 1998