F02C 5/06
The working fluid being generated in an internal-combustion gas generated of the
Official title: the working fluid being generated in an internal-combustion gas generated of the positive-displacement type having essentially no mechanical power output (internal-combustion engines with prolonged expansion using exhaust gas turbines F02B)
F02C5/06 (The working fluid being generated in an internal-combustion gas generated of the) appears on 47 US grants and 44 published applications in this corpus.
Search patents in F02C- Granted patents
- 47
- Published applications
- 44
- Assignees
- 20
- Inventors
- 74
- Latest grant
- 7 Oct 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 1 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 2 |
| 2004 | 0 | 0 |
| 2005 | 1 | 2 |
| 2006 | 0 | 1 |
| 2007 | 0 | 8 |
| 2008 | 2 | 2 |
| 2009 | 3 | 2 |
| 2010 | 5 | 1 |
| 2011 | 1 | 0 |
| 2012 | 0 | 0 |
| 2013 | 0 | 1 |
| 2014 | 0 | 1 |
| 2015 | 0 | 2 |
| 2016 | 1 | 0 |
| 2017 | 0 | 2 |
| 2018 | 1 | 4 |
| 2019 | 3 | 4 |
| 2020 | 2 | 3 |
| 2021 | 1 | 0 |
| 2022 | 6 | 2 |
| 2023 | 3 | 3 |
| 2024 | 1 | 3 |
| 2025 | 2 | 1 |
By publication year. Applications have been published since 2001.
Subgroups
Granted patents
Recent patents
- Aircraft air system with dedicated compressor(s)7 Oct 2025US 12,435,667 B2Pratt & Whitney Canada Corp.
- Constant volume combustor for gas turbine engine19 Aug 2025US 12,392,282 B2Pratt & Whitney Canada Corp.
- Aircraft propulsion system with intermittent combustion engine and electric transmission system and method for operating the same12 Nov 2024US 12,139,265 B2Pratt & Whitney Canada Corp.
- Aircraft propulsion system with intermittent combustion engine and electric transmission system and method for operating the same28 Nov 2023US 11,827,370 B1Pratt & Whitney Canada Corp.
- Aircraft power plant with supercritical CO2 heat engine17 Oct 2023US 11,787,548 B2Pratt & Whitney Canada Corp.
- Constant volume combustor for gas turbine engine4 Dec 2025US 2025/0369390 A1
- Aircraft air system with dedicated compressor(s)19 Dec 2024US 2024/0418122 A1Pratt & Whitney Canada Corp.
- Constant Volume Combustor For Gas Turbine Engine3 Oct 2024US 2024/0328349 A1Pratt & Whitney Canada Corp.
- Compounded turbo power unit with boost combustor9 May 2024US 2024/0151179 A1Raytheon Technologies Corporation
- Aircraft propulsion system with intermittent combustion engine and electric transmission system and method for operating the same28 Dec 2023US 2023/0415905 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Low volumetric compression ratio integrated turbo-compound rotary engine85US 7,775,044 B2Pratt & Whitney Canada Corp. · 2010
- Aircraft compound cycle propulsion engine54US 5,692,372 AROLLS-ROYCE plc · 1997
- Compounded turbocharged rotary internal combustion engine fueled with natural gas35US 5,056,315 A1991
- Controllable combustion method and device33US 6,938,588 B2Sarcos Investments LC · 2005
- Compact compound engine package31US 7,654,087 B2Pratt & Whitney Canada Corp. · 2010