F02K 1/34
For attenuating noise
Official title: for attenuating noise
F02K1/34 (For attenuating noise) appears on 100 US grants and 91 published applications in this corpus.
Search patents in F02K- Granted patents
- 100
- Published applications
- 91
- Assignees
- 56
- Inventors
- 213
- Latest grant
- 3 Mar 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 3 | 0 |
| 1982 | 0 | 0 |
| 1983 | 1 | 0 |
| 1984 | 0 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 2 | 0 |
| 1996 | 0 | 0 |
| 1997 | 1 | 0 |
| 1998 | 2 | 0 |
| 1999 | 3 | 0 |
| 2000 | 1 | 0 |
| 2001 | 1 | 1 |
| 2002 | 2 | 2 |
| 2003 | 4 | 1 |
| 2004 | 0 | 4 |
| 2005 | 1 | 6 |
| 2006 | 2 | 1 |
| 2007 | 3 | 2 |
| 2008 | 1 | 2 |
| 2009 | 1 | 6 |
| 2010 | 3 | 2 |
| 2011 | 5 | 8 |
| 2012 | 9 | 6 |
| 2013 | 4 | 8 |
| 2014 | 6 | 7 |
| 2015 | 8 | 2 |
| 2016 | 6 | 9 |
| 2017 | 3 | 2 |
| 2018 | 3 | 2 |
| 2019 | 4 | 6 |
| 2020 | 0 | 6 |
| 2021 | 7 | 3 |
| 2022 | 5 | 3 |
| 2023 | 1 | 0 |
| 2024 | 3 | 1 |
| 2025 | 0 | 1 |
| 2026 | 1 | 0 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Gas turbine engine with third stream3 Mar 2026US 12,565,866 B2General Electric Company
- Supersonic aircraft and method of reducing sonic booms and jet noise8 Oct 2024US 12,110,841 B2Japan Aerospace Exploration Agency
- Propulsion system architecture23 Jul 2024US 12,044,194 B2General Electric Company
- Gas turbine system and movable body including the same30 Jan 2024US 11,885,232 B2Mitsubishi Heavy Industries, Ltd.
- Flexible sleeve for adjustable fan duct nozzle8 Aug 2023US 11,719,189 B2Spirit AeroSystems, Inc.
- Gas turbine engine with third stream17 Apr 2025US 2025/0122849 A1General Electric Company
- Propulsion system architecture17 Oct 2024US 2024/0344487 A1General Electric Company
- Variable mixing nozzle design for jet noise reduction1 Dec 2022US 2022/0380060 A1
- Gas turbine system and moving body including the same25 Aug 2022US 2022/0268178 A1Mitsubishi Heavy Industries, Ltd.
- Supersonic aircraft and method of reducing sonic booms and jet noise25 Aug 2022US 2022/0268236 A1Japan Aerospace Exploration Agency
Most cited
By later US patents
- Confluent exhaust nozzle56US 6,971,229 B2The NORDAM Group, Inc. · 2005
- Method and apparatus for noise attenuation for gas turbine engines using at least one synthetic jet actuator for injecting air52US 7,055,329 B2General Electric Company · 2006
- Jet engine noise suppressor assembly34US 5,947,412 AThe Titan Corporation · 1999
- Apparatus and methods for active flow control of a nozzle exhaust plume34US 6,308,898 B1The Boeing Company · 2001
- High frequency excitation apparatus and method for reducing jet and cavity noise32US 6,375,118 B1The Boeing Company · 2002