B64C 27/20
Rotorcraft characterised by having shrouded rotors
Official title: Rotorcraft characterised by having shrouded rotors, e.g. flying platforms
B64C27/20 (Rotorcraft characterised by having shrouded rotors) appears on 290 US grants and 356 published applications in this corpus.
Search patents in B64C- Granted patents
- 290
- Published applications
- 356
- Assignees
- 125
- Inventors
- 488
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1977 | 1 | 0 |
| 1978 | 0 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 3 | 0 |
| 1985 | 1 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 3 | 0 |
| 1990 | 0 | 0 |
| 1991 | 2 | 0 |
| 1992 | 2 | 0 |
| 1993 | 1 | 0 |
| 1994 | 3 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 2 | 4 |
| 2002 | 8 | 9 |
| 2003 | 11 | 12 |
| 2004 | 7 | 10 |
| 2005 | 7 | 5 |
| 2006 | 0 | 10 |
| 2007 | 4 | 7 |
| 2008 | 2 | 4 |
| 2009 | 6 | 11 |
| 2010 | 8 | 7 |
| 2011 | 4 | 9 |
| 2012 | 0 | 6 |
| 2013 | 8 | 2 |
| 2014 | 8 | 3 |
| 2015 | 2 | 9 |
| 2016 | 4 | 11 |
| 2017 | 5 | 9 |
| 2018 | 16 | 19 |
| 2019 | 11 | 17 |
| 2020 | 16 | 42 |
| 2021 | 23 | 36 |
| 2022 | 24 | 32 |
| 2023 | 25 | 27 |
| 2024 | 29 | 22 |
| 2025 | 27 | 17 |
| 2026 | 12 | 16 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Decoupled hand controls for aircraft with vertical takeoff and landing and forward flight capabilities15 Sep 2026US 12,735,172 B2Kitty Hawk Corporation
- Multicopter with self-adjusting rotors8 Sep 2026US 12,730,452 B2Kitty Hawk Corporation
- Systems and methods for improved rotor assembly for use with a stator11 Aug 2026US 12,703,484 B2MagLev Aero Inc.
- Gyroscopically stabilised firefighting aerial vehicles28 Jul 2026US 12,691,999 B2Zircon Chambers Pty. Ltd.
- System, assemblies and methods for mechanical-thrust power conversion multifans23 Jun 2026US 12,662,242 B2N.M.B. Medical Applications Ltd
- Decoupled hand controls for aircraft with vertical takeoff and landing and forward flight capabilities8 Oct 2026US 2026/0307783 A1Kitty Hawk Corporation
- System, assemblies and methods for mechanical-thrust power conversion multifans1 Oct 2026US 2026/0296640 A1N.M.B. Medical Applications Ltd
- Vertiport with conveyance platforms17 Sep 2026US 2026/0274405 A1Flyon Aerosystems Ltd.
- Pure electric aircraft and control method therefor3 Sep 2026US 2026/0257792 A1Guangdong Huitian Aerospace Technology Co., Ltd.
- Vertical take-off and landing aircraft3 Sep 2026US 2026/0257806 A1
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- Modular and morphable air vehicle125US 9,045,226 B2Piasecki Aircraft Corporation · 2015
- Modular flight vehicle with wings113US 8,646,720 B22014
- Flying device with improved movement on the ground101US 7,959,104 B22011