F02K 1/82
Jet pipe walls
Official title: Jet pipe walls, e.g. liners
F02K1/82 (Jet pipe walls) appears on 1,091 US grants and 1,000 published applications in this corpus.
Search patents in F02K- Granted patents
- 1,091
- Published applications
- 1,000
- Assignees
- 231
- Inventors
- 1,892
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 6 | 0 |
| 1977 | 6 | 0 |
| 1978 | 8 | 0 |
| 1979 | 4 | 0 |
| 1980 | 7 | 0 |
| 1981 | 7 | 0 |
| 1982 | 5 | 0 |
| 1983 | 1 | 0 |
| 1984 | 3 | 0 |
| 1985 | 10 | 0 |
| 1986 | 3 | 0 |
| 1987 | 5 | 0 |
| 1988 | 8 | 0 |
| 1989 | 15 | 0 |
| 1990 | 7 | 0 |
| 1991 | 12 | 0 |
| 1992 | 14 | 0 |
| 1993 | 18 | 0 |
| 1994 | 7 | 0 |
| 1995 | 9 | 0 |
| 1996 | 13 | 0 |
| 1997 | 19 | 0 |
| 1998 | 18 | 0 |
| 1999 | 7 | 0 |
| 2000 | 18 | 0 |
| 2001 | 17 | 3 |
| 2002 | 11 | 7 |
| 2003 | 5 | 7 |
| 2004 | 9 | 9 |
| 2005 | 10 | 25 |
| 2006 | 9 | 28 |
| 2007 | 16 | 27 |
| 2008 | 13 | 31 |
| 2009 | 20 | 33 |
| 2010 | 24 | 27 |
| 2011 | 33 | 23 |
| 2012 | 19 | 26 |
| 2013 | 22 | 53 |
| 2014 | 31 | 60 |
| 2015 | 42 | 60 |
| 2016 | 42 | 67 |
| 2017 | 53 | 39 |
| 2018 | 56 | 59 |
| 2019 | 55 | 53 |
| 2020 | 59 | 75 |
| 2021 | 43 | 44 |
| 2022 | 66 | 57 |
| 2023 | 56 | 59 |
| 2024 | 77 | 51 |
| 2025 | 44 | 48 |
| 2026 | 29 | 29 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Composite skins having variable hole sizes and shapes formed using photomachining15 Sep 2026US 12,736,017 B2Rtx Corporation
- Method for manufacturing an acoustic attenuation structure with control of the positioning of an acoustic skin8 Sep 2026US 12,728,617 B2Safran
- 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
- Blocker door equipped with large cavity acoustic structure4 Aug 2026US 12,698,745 B2The Boeing Company
- Water cooled exhaust duct1 Oct 2026US 2026/0298137 A1Rtx Corporation
- Coupling assembly for a turbine engine1 Oct 2026US 2026/0298472 A1General Electric Company
- Sound absorption device3 Sep 2026US 2026/0258769 A1Safran Nacelles
- 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
- Sound suppressor exhaust structure175US 5,717,172 ANorthrop Grumman Corporation · 1998
- Exhaust silencer for microturbines170US 7,980,357 B2OfficePower, Inc. · 2011
- Tortuous path quiet exhaust eductor system134US 6,615,576 B2Honeywell International Inc. · 2003
- Infrared radiation suppressor for gas turbine engine113US 4,018,046 AAvco Corporation · 1977
- Multi-layer acoustic linings113US 4,298,090 AROLLS-ROYCE plc · 1981