F05D 2250/283
Honeycomb
Official title: honeycomb
F05D2250/283 (Honeycomb) appears on 401 US grants and 496 published applications in this corpus.
Search patents in F05D- Granted patents
- 401
- Published applications
- 496
- Assignees
- 105
- Inventors
- 1,078
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1980 | 1 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 2 | 0 |
| 1985 | 1 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 1 | 0 |
| 1993 | 2 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 1 | 0 |
| 1997 | 1 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 1 |
| 2002 | 4 | 6 |
| 2003 | 7 | 5 |
| 2004 | 3 | 4 |
| 2005 | 2 | 0 |
| 2006 | 1 | 7 |
| 2007 | 1 | 5 |
| 2008 | 1 | 10 |
| 2009 | 4 | 7 |
| 2010 | 3 | 10 |
| 2011 | 11 | 7 |
| 2012 | 9 | 10 |
| 2013 | 7 | 20 |
| 2014 | 6 | 15 |
| 2015 | 16 | 29 |
| 2016 | 11 | 43 |
| 2017 | 19 | 31 |
| 2018 | 24 | 35 |
| 2019 | 36 | 35 |
| 2020 | 41 | 53 |
| 2021 | 26 | 32 |
| 2022 | 36 | 33 |
| 2023 | 27 | 29 |
| 2024 | 38 | 31 |
| 2025 | 27 | 19 |
| 2026 | 18 | 19 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Noise reducing device having an obliquely pierced honeycomb structure6 Oct 2026US 12,753,720 B2Safran Aircraft Engines
- Rotorcraft with powerplant exhaust sound attenuation25 Aug 2026US 12,715,576 B2Pratt & Whitney Canada Corp.
- Optimised honeycomb core and acoustic attenuation panel comprising it for an aircraft turbomachine4 Aug 2026US 12,698,739 B2Safran Nacelles
- Containment ring for gas turbine engine28 Jul 2026US 12,692,799 B2Pratt & Whitney Canada Corp.
- Acoustic panel with different cell configurations23 Jun 2026US 12,662,978 B2Pratt & Whitney Canada Corp.
- Noise attenuation for nuclear imaging system27 Aug 2026US 2026/0251158 A1Siemens Medical Solutions USA, Inc.
- Open Rotor Propulsion System with Acoustic Treatment16 Jul 2026US 2026/0200586 A1Rtx Corporation
- Aircraft propulsion system with acoustically treated propulsor rotating structure16 Jul 2026US 2026/0200587 A1Rtx Corporation
- Acoustic panel for an aircraft turbomachine, and associated method and installation9 Jul 2026US 2026/0194006 A1Safran
- Hollow multi chambered radial wheel for a charging system9 Jul 2026US 2026/0194068 A1Accelleron Switzerland Ltd.
Most cited
By later US patents
- Combination bulk absorber-honeycomb acoustic panels122US 4,235,303 AThe Boeing Company · 1980
- Honeycomb noise attenuation structure110US 5,041,323 ARohr Industries, Inc. · 1991
- Acoustic septum cap honeycomb64US 7,510,052 B2Hexcel Corporation · 2009
- Micro-perforated acoustic liner49US 7,540,354 B2United Technologies Corporation · 2009
- Fan casing acoustic treatment46US 6,619,913 B2General Electric Company · 2003