F02C 7/045
Having provisions for noise suppression
Official title: having provisions for noise suppression
F02C7/045 (Having provisions for noise suppression) appears on 734 US grants and 771 published applications in this corpus.
Search patents in F02C- Granted patents
- 734
- Published applications
- 771
- Assignees
- 162
- Inventors
- 1,265
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 2 | 0 |
| 1978 | 4 | 0 |
| 1979 | 2 | 0 |
| 1980 | 5 | 0 |
| 1981 | 4 | 0 |
| 1982 | 0 | 0 |
| 1983 | 4 | 0 |
| 1984 | 3 | 0 |
| 1985 | 3 | 0 |
| 1986 | 1 | 0 |
| 1987 | 1 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 3 | 0 |
| 1993 | 0 | 0 |
| 1994 | 3 | 0 |
| 1995 | 5 | 0 |
| 1996 | 6 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 9 | 0 |
| 2001 | 7 | 3 |
| 2002 | 7 | 9 |
| 2003 | 10 | 6 |
| 2004 | 10 | 11 |
| 2005 | 6 | 12 |
| 2006 | 9 | 19 |
| 2007 | 5 | 10 |
| 2008 | 8 | 18 |
| 2009 | 8 | 17 |
| 2010 | 17 | 38 |
| 2011 | 20 | 19 |
| 2012 | 17 | 14 |
| 2013 | 19 | 36 |
| 2014 | 24 | 25 |
| 2015 | 34 | 37 |
| 2016 | 19 | 48 |
| 2017 | 34 | 45 |
| 2018 | 36 | 69 |
| 2019 | 57 | 46 |
| 2020 | 55 | 70 |
| 2021 | 38 | 33 |
| 2022 | 53 | 48 |
| 2023 | 48 | 37 |
| 2024 | 49 | 33 |
| 2025 | 37 | 36 |
| 2026 | 19 | 32 |
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
- Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes11 Aug 2026US 12,704,097 B2General Electric Company
- Optimised honeycomb core and acoustic attenuation panel comprising it for an aircraft turbomachine4 Aug 2026US 12,698,739 B2Safran Nacelles
- Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes4 Aug 2026US 12,698,747 B2General Electric Company
- Geared gas turbine engine with improved noise signature28 Jul 2026US 12,692,823 B2ROLLS-ROYCE plc
- Bleed air systems for aircraft engines17 Sep 2026US 2026/0275921 A1Pratt & Whitney Canada Corp.
- Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes17 Sep 2026US 2026/0275938 A1General Electric Company
- Gas turbine engine with acoustic spacing of the fan blades and outlet guide vanes3 Sep 2026US 2026/0258770 A1General Electric Company
- Acoustic damper assembly for a gas turbine engine13 Aug 2026US 2026/0235072 A1General Electric Company
- Aircraft propulsion system with acoustic treatment along bypass flowpath30 Jul 2026US 2026/0217378 A1Rtx Corporation
Most cited
By later US patents
- Noise reducing air inlet for gas turbine engines201US 4,240,250 AThe Boeing Company · 1980
- Reduction of turbomachinery noise149US 6,004,095 AMassachusetts Institute of Technology · 1999
- Combination bulk absorber-honeycomb acoustic panels122US 4,235,303 AThe Boeing Company · 1980
- Low noise fan assembly119US 5,169,288 AGeneral Electric Company · 1992
- Device and method for gas turbine unlocking112US 9,845,730 B2Nuovo Pignone S.p.A. · 2017