F02K 1/44
Nozzles having means
Official title: Nozzles having means, e.g. a shield, reducing sound radiation in a specified direction (F02K1/40 takes precedence)
F02K1/44 (Nozzles having means) appears on 67 US grants and 71 published applications in this corpus.
Search patents in F02K- Granted patents
- 67
- Published applications
- 71
- Assignees
- 39
- Inventors
- 158
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 1 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 0 |
| 2002 | 0 | 1 |
| 2003 | 1 | 1 |
| 2004 | 1 | 2 |
| 2005 | 1 | 4 |
| 2006 | 1 | 2 |
| 2007 | 1 | 3 |
| 2008 | 3 | 3 |
| 2009 | 2 | 4 |
| 2010 | 3 | 5 |
| 2011 | 4 | 2 |
| 2012 | 3 | 3 |
| 2013 | 1 | 3 |
| 2014 | 5 | 2 |
| 2015 | 2 | 3 |
| 2016 | 3 | 3 |
| 2017 | 3 | 0 |
| 2018 | 1 | 3 |
| 2019 | 1 | 3 |
| 2020 | 3 | 3 |
| 2021 | 0 | 2 |
| 2022 | 4 | 1 |
| 2023 | 1 | 3 |
| 2024 | 8 | 9 |
| 2025 | 1 | 4 |
| 2026 | 3 | 2 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft powerplant exhaust section with flow diverter1 Sep 2026US 12,723,555 B2Pratt & Whitney Canada Corp.
- Assembly for an exhaust cone of an aircraft turbomachine5 May 2026US 12,618,383 B2Safran Nacelles
- Fan case assembly of turbo fan engine24 Feb 2026US 12,560,131 B2Kawasaki Jukogyo Kabushiki Kaisha
- Low-frequency acoustic center body21 Oct 2025US 12,448,935 B2Rohr, Inc.
- Engine exhaust nozzle with acoustic attenuation10 Dec 2024US 12,163,472 B2Rohr, Inc.
- Aircraft powerplant exhaust section with flow diverter2 Apr 2026US 2026/0092578 A1Pratt & Whitney Canada Corp.
- Acoustic absorption structure comprising compartmentalized cells combining a plurality of types of resonators5 Feb 2026US 2026/0038471 A1
- Aircraft propulsion system with asymmetric exhaust assembly3 Jul 2025US 2025/0215840 A1Rtx Corporation
- Acoustic engine exhaust center body with tapered inner skin26 Jun 2025US 2025/0207542 A1Rohr, Inc.
- Assembly for an exhaust cone of an aircraft turbomachine30 Jan 2025US 2025/0035069 A1Safran Nacelles
Most cited
By later US patents
- Acoustic liner with bypass cooling26US 7,311,175 B2United Technologies Corporation · 2007
- Exhaust flow guide for jet noise reduction23US 6,505,706 B2Pratt & Whitney Canada Corp. · 2003
- Scarf nozzle for a jet engine and method of using the same21US 6,969,028 B2The Boeing Company · 2005
- Simplified method and apparatus for hot-shield jet noise suppression20US 4,291,782 AThe Boeing Company · 1981
- Noise suppressing turbofan nozzles and method16US 4,288,984 AThe Boeing Company · 1981