F02K 1/38
Introducing air inside the jet
Official title: Introducing air inside the jet (F02K1/28 takes precedence)
F02K1/38 (Introducing air inside the jet) appears on 390 US grants and 350 published applications in this corpus.
Search patents in F02K- Granted patents
- 390
- Published applications
- 350
- Assignees
- 92
- Inventors
- 681
- Latest grant
- 9 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 3 | 0 |
| 1977 | 2 | 0 |
| 1978 | 3 | 0 |
| 1979 | 9 | 0 |
| 1980 | 6 | 0 |
| 1981 | 5 | 0 |
| 1982 | 1 | 0 |
| 1983 | 2 | 0 |
| 1984 | 1 | 0 |
| 1985 | 4 | 0 |
| 1986 | 5 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 3 | 0 |
| 1990 | 4 | 0 |
| 1991 | 1 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 3 | 0 |
| 1995 | 4 | 0 |
| 1996 | 2 | 0 |
| 1997 | 5 | 0 |
| 1998 | 11 | 0 |
| 1999 | 7 | 0 |
| 2000 | 3 | 0 |
| 2001 | 3 | 1 |
| 2002 | 4 | 6 |
| 2003 | 8 | 6 |
| 2004 | 7 | 12 |
| 2005 | 2 | 12 |
| 2006 | 10 | 15 |
| 2007 | 9 | 12 |
| 2008 | 6 | 26 |
| 2009 | 14 | 17 |
| 2010 | 13 | 19 |
| 2011 | 13 | 19 |
| 2012 | 14 | 15 |
| 2013 | 17 | 14 |
| 2014 | 13 | 14 |
| 2015 | 10 | 15 |
| 2016 | 13 | 26 |
| 2017 | 13 | 17 |
| 2018 | 14 | 16 |
| 2019 | 26 | 13 |
| 2020 | 9 | 15 |
| 2021 | 17 | 13 |
| 2022 | 16 | 17 |
| 2023 | 11 | 7 |
| 2024 | 15 | 7 |
| 2025 | 3 | 11 |
| 2026 | 11 | 5 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Aircraft engine exhaust mixer having stiffened portions for attenuating vibration9 Jun 2026US 12,650,098 B2Pratt & Whitney Canada Corp.
- Turboprop with a variable area nozzle ejector2 Jun 2026US 12,644,426 B2Pratt & Whitney Canada Corp.
- Open rotor propulsion system with exhaust mixer(s)12 May 2026US 12,623,785 B2Rtx Corporation
- Gas turbine exhaust nozzle noise abatement5 May 2026US 12,618,381 B2General Electric Company
- Turbine exhaust case mixer14 Apr 2026US 12,601,283 B2Pratt & Whitney Canada Corp.
- Exhaust mixer for a turbofan engine13 Aug 2026US 2026/0235091 A1Rolls-Royce Deutschland Ltd & Co KG
- Drag recovery scheme using boundary layer ingestion16 Jul 2026US 2026/0201834 A1JetZero, Inc.
- Open rotor propulsion system with exhaust mixer(s)2 Apr 2026US 2026/0091873 A1Rtx Corporation
- Open rotor propulsion system with forward exhaust outlet(s)2 Apr 2026US 2026/0092556 A1Rtx Corporation
- Turboprop with a variable area nozzle ejector5 Feb 2026US 2026/0036101 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Arrangement for controlling fluid jets injected into a fluid stream1,018US 7,976,213 B2United Technologies Corporation · 2011
- Noise suppressing exhaust mixer assembly for ducted-fan, turbojet engine140US 4,117,671 AThe Boeing Company · 1978
- Gas turbine mixer apparatus for suppressing engine core noise and engine fan noise137US 4,077,206 AThe Boeing Company · 1978
- Gas turbine mixer apparatus114US 4,165,609 AThe Boeing Company · 1979
- Gas turbine exhaust nozzle for controlled temperature flow across adjoining airfoils112US 4,066,214 AAeritalia S.p.A. · 1978