B64C 27/467
Aerodynamic features
B64C27/467 (Aerodynamic features) appears on 188 US grants and 201 published applications in this corpus.
Search patents in B64C- Granted patents
- 188
- Published applications
- 201
- Assignees
- 94
- Inventors
- 404
- Latest grant
- 6 Oct 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1978 | 1 | 0 |
| 1979 | 1 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 3 | 0 |
| 1984 | 1 | 0 |
| 1985 | 0 | 0 |
| 1986 | 1 | 0 |
| 1987 | 0 | 0 |
| 1988 | 3 | 0 |
| 1989 | 2 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 1 | 0 |
| 1995 | 0 | 0 |
| 1996 | 2 | 0 |
| 1997 | 2 | 0 |
| 1998 | 1 | 0 |
| 1999 | 5 | 0 |
| 2000 | 5 | 0 |
| 2001 | 6 | 1 |
| 2002 | 2 | 2 |
| 2003 | 3 | 0 |
| 2004 | 1 | 3 |
| 2005 | 2 | 1 |
| 2006 | 1 | 5 |
| 2007 | 4 | 5 |
| 2008 | 1 | 0 |
| 2009 | 4 | 3 |
| 2010 | 1 | 5 |
| 2011 | 4 | 3 |
| 2012 | 4 | 4 |
| 2013 | 2 | 3 |
| 2014 | 2 | 4 |
| 2015 | 5 | 1 |
| 2016 | 6 | 3 |
| 2017 | 2 | 46 |
| 2018 | 6 | 10 |
| 2019 | 14 | 11 |
| 2020 | 17 | 19 |
| 2021 | 14 | 13 |
| 2022 | 13 | 15 |
| 2023 | 11 | 15 |
| 2024 | 20 | 13 |
| 2025 | 7 | 8 |
| 2026 | 6 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Method of stabilizing articulated rotor blade6 Oct 2026US 12,752,914 B2Lockheed Martin Corporation
- Air vehicle8 Sep 2026US 12,728,990 B2Tusas- Turk Havacilik Ve Uzay Sanayii Anonim Sirketi
- Reduced noise rotor for aerial vehicles9 Jun 2026US 12,649,591 B2Zipline International Inc.
- Rotorcraft and rotor blade12 May 2026US 12,623,775 B2Exedy Corporation
- Sound-reducing rotor blade tracking wedge profile31 Mar 2026US 12,589,863 B1Haymatt, L.L.C.
- Reduced noise rotor for aerial vehicles17 Sep 2026US 2026/0274457 A1Zipline International Inc.
- Propellers23 Jul 2026US 2026/0208854 A1OnwardAir, Inc.
- Aerodynamic design of propeller blades in vtol aircraft23 Jul 2026US 2026/0208857 A1Archer Aviation Inc.
- Rotary Wing Blade of an Aircraft, and Aircraft Provided with such a Blade21 May 2026US 2026/0138737 A1Airbus Helicopters
- Aircraft with ducted propulsion14 May 2026US 2026/0131887 A1Texas Tech University System
Most cited
By later US patents
- Active blowing system for rotorcraft vortex interaction noise reduction78US 5,813,625 AMcDonnell Douglas Helicopter Company · 1998
- Optimum speed tilt rotor67US 6,641,365 B22003
- Main rotor system for model helicopters58US 5,879,131 A1999
- Profile edge of an aerodynamic profile54US 6,076,776 ADeutsches Zentrum für Luft- und Raumfahrt e. V. · 2000
- Blade with swept-back tip for the rotary wings of an aircraft47US 6,000,911 AEurocopter · 1999