F02K 7/00
Plants in which the working fluid is used in a jet only
Official title: Plants in which the working fluid is used in a jet only, i.e. the plants not having a turbine or other engine driving a compressor or a ducted fan; Control thereof (rocket-engine plants F02K9/00)
F02K7/00 (Plants in which the working fluid is used in a jet only) appears on 728 US grants and 594 published applications in this corpus.
Search patents in F02K- Granted patents
- 728
- Published applications
- 594
- Assignees
- 221
- Inventors
- 1,132
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 4 | 0 |
| 1979 | 6 | 0 |
| 1980 | 7 | 0 |
| 1981 | 4 | 0 |
| 1982 | 8 | 0 |
| 1983 | 5 | 0 |
| 1984 | 8 | 0 |
| 1985 | 6 | 0 |
| 1986 | 7 | 0 |
| 1987 | 7 | 0 |
| 1988 | 8 | 0 |
| 1989 | 12 | 0 |
| 1990 | 10 | 0 |
| 1991 | 15 | 0 |
| 1992 | 23 | 0 |
| 1993 | 11 | 0 |
| 1994 | 18 | 0 |
| 1995 | 7 | 0 |
| 1996 | 12 | 0 |
| 1997 | 6 | 0 |
| 1998 | 9 | 0 |
| 1999 | 18 | 0 |
| 2000 | 6 | 0 |
| 2001 | 9 | 0 |
| 2002 | 20 | 14 |
| 2003 | 24 | 20 |
| 2004 | 14 | 34 |
| 2005 | 22 | 27 |
| 2006 | 22 | 25 |
| 2007 | 12 | 19 |
| 2008 | 9 | 25 |
| 2009 | 8 | 22 |
| 2010 | 20 | 21 |
| 2011 | 15 | 22 |
| 2012 | 18 | 25 |
| 2013 | 21 | 23 |
| 2014 | 18 | 23 |
| 2015 | 29 | 27 |
| 2016 | 16 | 17 |
| 2017 | 15 | 24 |
| 2018 | 16 | 32 |
| 2019 | 22 | 34 |
| 2020 | 23 | 37 |
| 2021 | 26 | 21 |
| 2022 | 36 | 30 |
| 2023 | 33 | 24 |
| 2024 | 19 | 27 |
| 2025 | 20 | 9 |
| 2026 | 12 | 12 |
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.
- Hybrid turbofan and solid oxide fuel cell propulsion system and related methods5 May 2026US 12,617,537 B1The Boeing Company
- Gas propulsion thrust device5 May 2026US 12,618,418 B1
- Rotating detonation engines and related devices and methods5 May 2026US 12,618,565 B2University of Cincinnati
- 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
- Standing normal detonation jet engine and method of producing a standing normal detonation wave4 Jun 2026US 2026/0153065 A1University of Central Florida Research Foundation, Inc.
- 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
Most cited
By later US patents
- Modular multi-part rail mounted engine assembly215US 6,279,309 B1Ramgen Power Systems, Inc. · 2001
- Pulse detonation engine97US 5,473,885 ALockheed Corporation · 1995
- Pulse combusted acoustic agglomeration apparatus and process95US 5,353,721 AManufacturing and Technology Conversion International, Inc. · 1994
- 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