F02K 7/10
Plants in which the working fluid is used in a jet only
Official title: characterised by having ram-action compression, i.e. aero-thermo-dynamic-ducts or ram-jet engines
F02K7/10 (Plants in which the working fluid is used in a jet only) appears on 452 US grants and 322 published applications in this corpus.
Search patents in F02K- Granted patents
- 452
- Published applications
- 322
- Assignees
- 142
- Inventors
- 737
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 5 | 0 |
| 1978 | 4 | 0 |
| 1979 | 5 | 0 |
| 1980 | 6 | 0 |
| 1981 | 4 | 0 |
| 1982 | 7 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 5 | 0 |
| 1986 | 4 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 10 | 0 |
| 1990 | 9 | 0 |
| 1991 | 15 | 0 |
| 1992 | 20 | 0 |
| 1993 | 8 | 0 |
| 1994 | 11 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 2 | 0 |
| 1998 | 8 | 0 |
| 1999 | 12 | 0 |
| 2000 | 5 | 0 |
| 2001 | 4 | 0 |
| 2002 | 10 | 10 |
| 2003 | 9 | 6 |
| 2004 | 7 | 15 |
| 2005 | 8 | 7 |
| 2006 | 9 | 9 |
| 2007 | 5 | 7 |
| 2008 | 4 | 11 |
| 2009 | 3 | 16 |
| 2010 | 8 | 9 |
| 2011 | 9 | 9 |
| 2012 | 10 | 9 |
| 2013 | 12 | 14 |
| 2014 | 6 | 8 |
| 2015 | 13 | 16 |
| 2016 | 9 | 10 |
| 2017 | 8 | 12 |
| 2018 | 6 | 15 |
| 2019 | 12 | 28 |
| 2020 | 14 | 21 |
| 2021 | 19 | 15 |
| 2022 | 26 | 21 |
| 2023 | 22 | 20 |
| 2024 | 16 | 20 |
| 2025 | 17 | 6 |
| 2026 | 9 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Combustion mode switching engine6 Oct 2026US 12,753,730 B2PD AeroSpace, LTD.
- Pulsed-plasma-discharge engine and its method of operation18 Aug 2026US 12,710,021 B2Sharp Pulse Corp.
- 100% ambient air environmental control system7 Apr 2026US 12,595,065 B2Hamilton Sundstrand Corporation
- Jet-propelled engine using discharged exhaust gas7 Apr 2026US 12,595,751 B1
- Apparatus and method for fluid manipulation10 Mar 2026US 12,570,391 B2
- Aircraft ram air turbine systems having face gears1 Oct 2026US 2026/0296668 A1The Boeing Company
- Method of operating a rotating detonation combustor6 Aug 2026US 2026/0227070 A1General Electric Company
- Variable compression air intakes for aircraft propulsion systems and methods for varying compression of an air intake14 May 2026US 2026/0131900 A1The Boeing Company
- Flowpath Assembly with Composite Tube Array14 May 2026US 2026/0132759 A1General Electric Company
- Advanced ram scoop concepts for rotating detonation enabled high-speed propulsion systems14 May 2026US 2026/0132760 A1General Electric Company
Most cited
By later US patents
- Modular multi-part rail mounted engine assembly215US 6,279,309 B1Ramgen Power Systems, Inc. · 2001
- Turbofan engine with a low pressure turbine driven supercharger in a bypass duct operated by a fuel rich combustor and an afterburner93US 5,867,980 AGeneral Electric Company · 1999
- Combination propulsion system for a flying craft92US 5,014,508 AMesserschmitt-Boelkow-Blohm GmbH · 1991
- Payload carry and launch system75US 6,193,187 B12001
- Ramjet engine for power generation64US 6,446,425 B1Ramgen Power Systems, Inc. · 2002