B64C 21/06
For sucking
Official title: for sucking (BLI propulsion B64C21/01)
B64C21/06 (For sucking) appears on 163 US grants and 134 published applications in this corpus.
Search patents in B64C- Granted patents
- 163
- Published applications
- 134
- Assignees
- 63
- Inventors
- 289
- Latest grant
- 12 May 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 0 | 0 |
| 1978 | 3 | 0 |
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 2 | 0 |
| 1987 | 3 | 0 |
| 1988 | 2 | 0 |
| 1989 | 2 | 0 |
| 1990 | 1 | 0 |
| 1991 | 1 | 0 |
| 1992 | 5 | 0 |
| 1993 | 3 | 0 |
| 1994 | 5 | 0 |
| 1995 | 1 | 0 |
| 1996 | 3 | 0 |
| 1997 | 2 | 0 |
| 1998 | 4 | 0 |
| 1999 | 4 | 0 |
| 2000 | 4 | 0 |
| 2001 | 2 | 0 |
| 2002 | 1 | 0 |
| 2003 | 0 | 1 |
| 2004 | 2 | 0 |
| 2005 | 0 | 3 |
| 2006 | 1 | 1 |
| 2007 | 1 | 4 |
| 2008 | 0 | 1 |
| 2009 | 3 | 4 |
| 2010 | 3 | 2 |
| 2011 | 1 | 1 |
| 2012 | 2 | 4 |
| 2013 | 1 | 5 |
| 2014 | 5 | 2 |
| 2015 | 2 | 6 |
| 2016 | 5 | 12 |
| 2017 | 7 | 11 |
| 2018 | 4 | 8 |
| 2019 | 11 | 8 |
| 2020 | 12 | 17 |
| 2021 | 8 | 5 |
| 2022 | 11 | 9 |
| 2023 | 10 | 8 |
| 2024 | 8 | 6 |
| 2025 | 8 | 9 |
| 2026 | 5 | 7 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Aircraft with boundary layer ingestion device having center position between center position of fuselage and center position of rear end portion of fuselage12 May 2026US 12,623,786 B2Japan Aerospace Exploration Agency
- Industrial aerial robot systems and methods31 Mar 2026US 12,589,896 B2
- Drag recovery scheme using boundary layer ingestion31 Mar 2026US 12,590,558 B2JetZero, Inc.
- Methods for optimizing boundary layer control (BLC) systems and related systems10 Mar 2026US 12,570,394 B2
- Boat propulsion system17 Feb 2026US 12,552,504 B2Bound 4 Blue, S.L.
- Industrial aerial robot systems and methods20 Aug 2026US 2026/0242078 A1
- Industrial aerial robot systems and methods20 Aug 2026US 2026/0242079 A1
- Industrial aerial robot systems and methods16 Jul 2026US 2026/0200606 A1
- Drag recovery scheme using boundary layer ingestion16 Jul 2026US 2026/0201834 A1JetZero, Inc.
- Methods for optimizing boundary layer control (blc) systems and related systems25 Jun 2026US 2026/0175969 A1
Most cited
By later US patents
- Aircraft gas turbine engine bleed air energy recovery apparatus119US 5,137,230 AGeneral Electric Company · 1992
- Anti-icing system for aircraft118US 5,114,100 AThe Boeing Company · 1992
- Gas turbine engine powered aircraft environmental control system and boundary layer bleed106US 5,143,329 AGeneral Electric Company · 1992
- Turbofan duct with noise suppression and boundary layer control73US 4,749,150 ARohr Industries, Inc. · 1988
- Vehicular boundary layer control system and method70US 6,068,328 A2000