F05D 2270/17
To control boundary layer
Official title: to control boundary layer
F05D2270/17 (To control boundary layer) appears on 279 US grants and 307 published applications in this corpus.
Search patents in F05D- Granted patents
- 279
- Published applications
- 307
- Assignees
- 102
- Inventors
- 566
- Latest grant
- 16 Jun 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 2 | 0 |
| 1978 | 0 | 0 |
| 1979 | 0 | 0 |
| 1980 | 2 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 1 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 4 | 0 |
| 1999 | 5 | 0 |
| 2000 | 2 | 0 |
| 2001 | 2 | 0 |
| 2002 | 2 | 2 |
| 2003 | 3 | 0 |
| 2004 | 2 | 6 |
| 2005 | 2 | 3 |
| 2006 | 3 | 8 |
| 2007 | 3 | 6 |
| 2008 | 7 | 25 |
| 2009 | 5 | 17 |
| 2010 | 11 | 31 |
| 2011 | 11 | 23 |
| 2012 | 21 | 7 |
| 2013 | 20 | 21 |
| 2014 | 15 | 18 |
| 2015 | 13 | 13 |
| 2016 | 12 | 15 |
| 2017 | 14 | 19 |
| 2018 | 12 | 15 |
| 2019 | 20 | 8 |
| 2020 | 16 | 16 |
| 2021 | 11 | 11 |
| 2022 | 16 | 11 |
| 2023 | 11 | 5 |
| 2024 | 10 | 11 |
| 2025 | 10 | 9 |
| 2026 | 6 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
Recent patents
- Fan inlet case strut16 Jun 2026US 12,655,766 B1Rtx Corporation
- Combustor nozzle, combustor, and gas turbine including same12 May 2026US 12,624,836 B2Doosan Enerbility Co., Ltd.
- Open rotor nose cone ram air heat exchanger with exhaust of cooling air through static structure5 May 2026US 12,618,367 B2Rtx Corporation
- Unducted propulsion system7 Apr 2026US 12,595,760 B2General Electric Company
- Drag recovery scheme using boundary layer ingestion31 Mar 2026US 12,590,558 B2JetZero, Inc.
- Unducted propulsion system30 Jul 2026US 2026/0218650 A1General Electric Company
- Drag recovery scheme using boundary layer ingestion16 Jul 2026US 2026/0201834 A1JetZero, Inc.
- Systems and methods for breaking down ground vortices in an aircraft propulsion system inlet21 May 2026US 2026/0139630 A1Rtx Corporation
- Open rotor nose cone ram air heat exchanger with exhaust of cooling air through static structure7 May 2026US 2026/0126010 A1Rtx Corporation
- Devices and methods for guiding bleed air in a turbofan engine26 Mar 2026US 2026/0085640 A1Pratt & Whitney Canada Corp.
Most cited
By later US patents
- Paraelectric gas flow accelerator107US 6,200,539 B1The University of Tennessee Research Corporation · 2001
- Self-aspirating high-area-ratio inter-turbine duct assembly for use in a gas turbine engine70US 6,851,264 B2General Electric Company · 2005
- Single dielectric barrier aerodynamic plasma actuation70US 7,380,756 B1The United States of America as represented by the Secretary of the Air Force · 2008
- Particle separator using boundary layer control55US 7,678,165 B2General Electric Company · 2010
- Method for generating surface plasma49US 6,570,333 B1Sandia Corporation · 2003