F02K 9/74
Combined with another jet-propulsion plant
Official title: combined with another jet-propulsion plant
F02K9/74 (Combined with another jet-propulsion plant) appears on 150 US grants and 98 published applications in this corpus.
Search patents in F02K- Granted patents
- 150
- Published applications
- 98
- Assignees
- 106
- Inventors
- 335
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 1 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 7 | 0 |
| 1990 | 5 | 0 |
| 1991 | 7 | 0 |
| 1992 | 10 | 0 |
| 1993 | 4 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 2 | 0 |
| 1999 | 2 | 0 |
| 2000 | 6 | 0 |
| 2001 | 2 | 0 |
| 2002 | 9 | 4 |
| 2003 | 4 | 4 |
| 2004 | 6 | 3 |
| 2005 | 1 | 4 |
| 2006 | 4 | 2 |
| 2007 | 1 | 0 |
| 2008 | 0 | 1 |
| 2009 | 0 | 6 |
| 2010 | 2 | 1 |
| 2011 | 3 | 1 |
| 2012 | 4 | 0 |
| 2013 | 0 | 1 |
| 2014 | 1 | 1 |
| 2015 | 1 | 14 |
| 2016 | 4 | 4 |
| 2017 | 5 | 5 |
| 2018 | 3 | 2 |
| 2019 | 1 | 2 |
| 2020 | 7 | 3 |
| 2021 | 2 | 7 |
| 2022 | 4 | 9 |
| 2023 | 11 | 5 |
| 2024 | 7 | 10 |
| 2025 | 5 | 7 |
| 2026 | 5 | 2 |
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.
- Geometry optimized low aspect ratio VTOL vehicle system with structurally integrated propulsion28 Jul 2026US 12,692,825 B2Monostage Space Inc.
- Thermal management for ramjet-RDRE configuration of RBCC10 Mar 2026US 12,571,361 B2Venus Aerospace Corp.
- Inlet bleed diversion through rotating detonation rocket engine24 Feb 2026US 12,560,134 B1Venus Aerospace Corp.
- Gas turbine engine having a heat exchanger arrangement for heating or cooling a fuel6 Jan 2026US 12,516,631 B2Honeywell International Inc.
- Air turborocket apparatus with precooler heat exchanger at the air intake30 Jul 2026US 2026/0218670 A1Destinus SA
- Geometry optimized low aspect ratio vtol vehicle system with structurally integrated propulsion5 Mar 2026US 2026/0063091 A1Monostage Space Inc.
- Thermal management for ramjet-rdre configuration of rbcc28 Aug 2025US 2025/0270970 A1Venus Aerospace Corp.
- Hydrogen liquid oxygen combined cycle engine28 Aug 2025US 2025/0271142 A1Rtx Corporation
- Combustion mode switching engine12 Jun 2025US 2025/0188893 A1PD AeroSpace, LTD.
Most cited
By later US patents
- Combination propulsion system for a flying craft92US 5,014,508 AMesserschmitt-Boelkow-Blohm GmbH · 1991
- Combined air-hydrogen turbo-rocket power plant67US 5,012,640 ASociete Nationale d'Etude et de Construction de Moteurs D'Aviation "S.N.E.C.M A." · 1991
- Two stage launch vehicle and launch trajectory method66US 5,568,901 A1996
- Hybrid rocket system and integrated motor for use therein49US 5,715,675 AEnvironmental Aeroscience Corp. · 1998
- Combined multi-speed jet engine for the drive of airplanes and space vehicles46US 4,909,031 AMTU Motoren-und Turbinen-Union Munchen GmbH · 1990