F02K 1/1223
Of two series of flaps, the upstream series having its flaps hinged
Official title: {of two series of flaps, the upstream series having its flaps hinged at their upstream ends on a fixed structure and the downstream series having its flaps hinged at their upstream ends on the downstream ends of the flaps of the upstream series}
F02K1/1223 (Of two series of flaps, the upstream series having its flaps hinged) appears on 154 US grants and 84 published applications in this corpus.
Search patents in F02K- Granted patents
- 154
- Published applications
- 84
- Assignees
- 40
- Inventors
- 195
- Latest grant
- 16 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 1 | 0 |
| 1984 | 1 | 0 |
| 1985 | 2 | 0 |
| 1986 | 0 | 0 |
| 1987 | 3 | 0 |
| 1988 | 4 | 0 |
| 1989 | 8 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 7 | 0 |
| 1993 | 9 | 0 |
| 1994 | 3 | 0 |
| 1995 | 3 | 0 |
| 1996 | 6 | 0 |
| 1997 | 3 | 0 |
| 1998 | 10 | 0 |
| 1999 | 0 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 5 | 1 |
| 2003 | 1 | 1 |
| 2004 | 2 | 3 |
| 2005 | 3 | 9 |
| 2006 | 5 | 3 |
| 2007 | 5 | 6 |
| 2008 | 1 | 2 |
| 2009 | 6 | 6 |
| 2010 | 1 | 1 |
| 2011 | 2 | 2 |
| 2012 | 3 | 3 |
| 2013 | 3 | 4 |
| 2014 | 2 | 3 |
| 2015 | 3 | 5 |
| 2016 | 3 | 7 |
| 2017 | 6 | 1 |
| 2018 | 6 | 6 |
| 2019 | 1 | 1 |
| 2020 | 3 | 0 |
| 2021 | 2 | 3 |
| 2022 | 4 | 4 |
| 2023 | 8 | 6 |
| 2024 | 3 | 4 |
| 2025 | 5 | 3 |
By publication year. Applications have been published since 2001.
Recent patents
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- Seal for gimbaling and/or fixed rocket engine nozzles, and associated systems and methods9 Oct 2025US 2025/0314220 A1Blue Origin Manufacturing, LLC
- Articulatable ducting systems10 Jul 2025US 2025/0223934 A1ROLLS-ROYCE plc
- Mixed flow exhaust thrust reverser with area control nozzle systems and methods13 Feb 2025US 2025/0052210 A1Rohr, Inc.
- Variable-geometry convergent-divergent exhaust nozzle13 Jun 2024US 2024/0191672 A1ROLLS-ROYCE plc
- Turbojet engine rear portion having an augmented a9/a8 nozzle area ratio2 May 2024US 2024/0141852 A1Safran Aircraft Engines
Most cited
By later US patents
- Three stream, variable area fixed aperture nozzle with pneumatic actuation69US 9,677,501 B2Rolls-Royce North American Technologies Inc. · 2017
- Three stream, variable area, vectorable nozzle69US 9,845,768 B2Rolls-Royce North American Technologies Inc. · 2017
- Yaw and pitch convergent-divergent thrust vectoring nozzle50US 4,836,451 AUnited Technologies Corporation · 1989
- Exhaust nozzle coupled with reverser exhaust door47US 4,690,329 AUnited Technologies Corporation · 1987
- Method and apparatus for boosting ram airflow to an ejection nozzle45US 5,435,127 AGeneral Electric Company · 1995