B64D 33/06
Silencing exhaust or propulsion jets
Official title: {Silencing exhaust or propulsion jets}
B64D33/06 (Silencing exhaust or propulsion jets) appears on 197 US grants and 199 published applications in this corpus.
Search patents in B64D- Granted patents
- 197
- Published applications
- 199
- Assignees
- 81
- Inventors
- 437
- Latest grant
- 1 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 4 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 2 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 4 | 0 |
| 2001 | 3 | 1 |
| 2002 | 2 | 4 |
| 2003 | 5 | 5 |
| 2004 | 4 | 2 |
| 2005 | 1 | 2 |
| 2006 | 2 | 3 |
| 2007 | 3 | 1 |
| 2008 | 3 | 9 |
| 2009 | 1 | 4 |
| 2010 | 7 | 11 |
| 2011 | 3 | 5 |
| 2012 | 6 | 7 |
| 2013 | 10 | 12 |
| 2014 | 13 | 5 |
| 2015 | 6 | 8 |
| 2016 | 6 | 9 |
| 2017 | 14 | 10 |
| 2018 | 5 | 4 |
| 2019 | 3 | 8 |
| 2020 | 7 | 15 |
| 2021 | 8 | 12 |
| 2022 | 13 | 21 |
| 2023 | 11 | 14 |
| 2024 | 17 | 12 |
| 2025 | 12 | 7 |
| 2026 | 6 | 8 |
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.
- Rotorcraft with powerplant exhaust sound attenuation25 Aug 2026US 12,715,576 B2Pratt & Whitney Canada Corp.
- Method for forming a sound attenuation structure provided with s-shaped cells11 Aug 2026US 12,703,154 B2Safran
- Exhaust duct for hybrid aircraft powerplant24 Mar 2026US 12,583,609 B2Pratt & Whitney Canada Corp.
- Cooled variable area nozzle for an aircraft engine17 Mar 2026US 12,578,092 B2Rtx Corporation
- Acoustic attenuation structure provided with s-shaped cells having drained barriers and method for manufacturing same8 Oct 2026US 2026/0307816 A1
- Aircraft and Method for Operating7 May 2026US 2026/0125159 A1General Electric Company
- Aircraft powerplant exhaust section with flow diverter2 Apr 2026US 2026/0092578 A1Pratt & Whitney Canada Corp.
- Turbo-compounded engine with exhaust duct acoustic arrangement19 Mar 2026US 2026/0077875 A1Pratt & Whitney Canada Corp.
- Cowl assembly for a gas turbine engine19 Feb 2026US 2026/0049717 A1General Electric Company
Most cited
By later US patents
- Tortuous path quiet exhaust eductor system134US 6,615,576 B2Honeywell International Inc. · 2003
- Fluid mixer with an integral fluid capture ducts forming auxiliary secondary chutes at the discharge end of said ducts90US 7,434,384 B2United Technologies Corporation · 2008
- Sinuous chevron exhaust nozzle87US 7,305,817 B2General Electric Company · 2007
- Detachable integral aircraft tailcone and power assembly73US 6,244,539 B1AlliedSignal Inc. · 2001
- Method and apparatus for reducing airplane noise72US 6,161,797 ADugan Air Technologies, Inc. · 2000