B64D 2033/0206
Comprising noise reduction means
Official title: {comprising noise reduction means, e.g. acoustic liners}
B64D2033/0206 (Comprising noise reduction means) appears on 440 US grants and 476 published applications in this corpus.
Search patents in B64D- Granted patents
- 440
- Published applications
- 476
- Assignees
- 97
- Inventors
- 757
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 1 | 0 |
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 4 | 0 |
| 1989 | 3 | 0 |
| 1990 | 2 | 0 |
| 1991 | 0 | 0 |
| 1992 | 1 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 2 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 3 | 0 |
| 1999 | 2 | 0 |
| 2000 | 5 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 9 |
| 2003 | 2 | 3 |
| 2004 | 7 | 5 |
| 2005 | 5 | 8 |
| 2006 | 2 | 5 |
| 2007 | 3 | 4 |
| 2008 | 5 | 13 |
| 2009 | 3 | 4 |
| 2010 | 9 | 28 |
| 2011 | 12 | 18 |
| 2012 | 12 | 15 |
| 2013 | 8 | 17 |
| 2014 | 21 | 14 |
| 2015 | 16 | 16 |
| 2016 | 19 | 19 |
| 2017 | 20 | 26 |
| 2018 | 15 | 36 |
| 2019 | 31 | 31 |
| 2020 | 32 | 57 |
| 2021 | 21 | 31 |
| 2022 | 38 | 30 |
| 2023 | 38 | 25 |
| 2024 | 43 | 27 |
| 2025 | 26 | 22 |
| 2026 | 16 | 13 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Alveolar structure of an acoustic damping panel comprising at least one partition configured for vibrating at a desired frequency, method for producing said alveolar structure6 Oct 2026US 12,752,928 B2Airbus Operations GmbH
- Optimised honeycomb core and acoustic attenuation panel comprising it for an aircraft turbomachine4 Aug 2026US 12,698,739 B2Safran Nacelles
- Geared gas turbine engine with improved noise signature28 Jul 2026US 12,692,823 B2ROLLS-ROYCE plc
- Alveolar structure of an acoustic damping panel comprising at least one attached element configured for vibrating at a desired frequency, method for producing said alveolar structure23 Jun 2026US 12,662,252 B2Airbus Operations GmbH
- Acoustic panel with different cell configurations23 Jun 2026US 12,662,978 B2Pratt & Whitney Canada Corp.
- Sound absorption device3 Sep 2026US 2026/0258769 A1Safran Nacelles
- Method for manufacturing a curved cellular structure using rigid tubes, and cellular structure thus obtained27 Aug 2026US 2026/0249975 A1Airbus Operations GmbH
- Aircraft propulsion system with acoustic treatment along bypass flowpath30 Jul 2026US 2026/0217378 A1Rtx Corporation
- Gas turbine engine with forward swept outlet guide vanes30 Jul 2026US 2026/0218668 A1General Electric Company
- Open Rotor Propulsion System with Acoustic Treatment16 Jul 2026US 2026/0200586 A1Rtx Corporation
Most cited
By later US patents
- Combination bulk absorber-honeycomb acoustic panels122US 4,235,303 AThe Boeing Company · 1980
- Active low noise fan assembly79US 5,478,199 AGeneral Electric Company · 1995
- Noise attenuation panel75US 5,543,198 AShort Brothers PLC · 1996
- Turbofan duct with noise suppression and boundary layer control73US 4,749,150 ARohr Industries, Inc. · 1988
- Noise attenuation panel69US 6,609,592 B2Short Brothers PLC · 2003