F02K 7/20
Composite ram-jet/pulse-jet engines
F02K7/20 (Composite ram-jet/pulse-jet engines) appears on 29 US grants and 29 published applications in this corpus.
Search patents in F02K- Granted patents
- 29
- Published applications
- 29
- Assignees
- 22
- Inventors
- 47
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 3 | 2 |
| 2003 | 2 | 1 |
| 2004 | 0 | 1 |
| 2005 | 1 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 0 |
| 2010 | 0 | 0 |
| 2011 | 1 | 1 |
| 2012 | 1 | 2 |
| 2013 | 2 | 4 |
| 2014 | 0 | 1 |
| 2015 | 2 | 1 |
| 2016 | 1 | 1 |
| 2017 | 2 | 0 |
| 2018 | 1 | 1 |
| 2019 | 0 | 1 |
| 2020 | 1 | 1 |
| 2021 | 1 | 2 |
| 2022 | 2 | 1 |
| 2023 | 0 | 5 |
| 2024 | 4 | 0 |
| 2025 | 1 | 1 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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.
- Inlet bleed diversion through rotating detonation rocket engine24 Feb 2026US 12,560,134 B1Venus Aerospace Corp.
- Combined cycle propulsion system for hypersonic flight18 Mar 2025US 12,253,050 B2General Electric Company
- Pulsed-plasma-discharge engine and its method of operation17 Sep 2024US 12,092,055 B1Sharp Pulse Corp.
- Advanced ram scoop concepts for rotating detonation enabled high-speed propulsion systems14 May 2026US 2026/0132760 A1General Electric Company
- Pulsed-Plasma-Discharge Engine and its Method of Operation19 Feb 2026US 2026/0049583 A1Sharp Pulse Corp.
- Combustion mode switching engine12 Jun 2025US 2025/0188893 A1PD AeroSpace, LTD.
- Combined cycle propulsion system for hypersonic flight12 Oct 2023US 2023/0323809 A1General Electric Company
- Engine with rotating detonation combustion system6 Jul 2023US 2023/0213192 A1General Electric Company
Most cited
By later US patents
- Pulsed detonation engine with backpressure32US 6,494,034 B2McDonnell Douglas Corporation · 2002
- Pulsed detonation engine with divergent inflow transition section30US 6,446,428 B1McDonnell Douglas Corporation · 2002
- Pulse jet engine having an acoustically enhanced ejector system26US 8,083,494 B2Gestion Serge Benjamin Inc. · 2011
- Pulse combustor including acoustic elements26US 8,312,706 B2Atlantis Research Labs · 2012
- Combustor having an acoustically enhanced ejector system26US 8,381,527 B2Atlantis Research Labs · 2013