B64C 2027/8227
Comprising more than one rotor
Official title: {comprising more than one rotor}
B64C2027/8227 (Comprising more than one rotor) appears on 78 US grants and 117 published applications in this corpus.
Search patents in B64C- Granted patents
- 78
- Published applications
- 117
- Assignees
- 35
- Inventors
- 164
- Latest grant
- 23 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 0 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 0 |
| 2007 | 0 | 0 |
| 2008 | 0 | 0 |
| 2009 | 0 | 2 |
| 2010 | 0 | 1 |
| 2011 | 1 | 0 |
| 2012 | 1 | 0 |
| 2013 | 0 | 2 |
| 2014 | 0 | 0 |
| 2015 | 2 | 0 |
| 2016 | 0 | 4 |
| 2017 | 1 | 35 |
| 2018 | 0 | 6 |
| 2019 | 9 | 10 |
| 2020 | 16 | 20 |
| 2021 | 12 | 7 |
| 2022 | 11 | 14 |
| 2023 | 10 | 5 |
| 2024 | 10 | 1 |
| 2025 | 3 | 2 |
| 2026 | 0 | 8 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Recent patents
- Reaction drive helicopter with cyclorotor propulsion and control23 Dec 2025US 12,503,223 B1
- Aircraft23 Sep 2025US 12,420,942 B2Honda Motor Co., Ltd.
- Differential thrust vectoring system14 Jan 2025US 12,195,177 B2Textron Innovations Inc.
- Aircraft thermal management system5 Nov 2024US 12,134,481 B2Textron Innovations Inc.
- VTOL rotorcraft with annular contra-rotating rotary wings and auxiliary propulsor8 Oct 2024US 12,110,103 B2
- Centrifugal fan propulsion systems and methods for an aerial vehicle1 Oct 2026US 2026/0296685 A1Sacuba Pty Ltd
- Compound helicopter with lateral booms17 Sep 2026US 2026/0274404 A1Airbus Helicopters Deutschland GmbH
- Pivoting aircraft rotor assemblies17 Sep 2026US 2026/0274406 A1Textron Systems Corporation
- Method for controlling electric flight vehicle17 Sep 2026US 2026/0274461 A1Mitsubishi Heavy Industries, Ltd.
- Hybrid propulsion helicopter including main coaxial counter-rotating rotors and auxiliary tail rotors17 Sep 2026US 2026/0274462 A1
Most cited
By later US patents
- Tandem-rotor gyroplane42US 6,089,501 A2000
- Coaxial rotor aircraft32US 8,167,233 B2Avx Aircraft Company · 2012
- Anti-torque device with longitudinal thrust for a rotorcraft19US 8,979,015 B2Airbus Helicopters · 2015
- Electric distributed propulsion anti-torque redundant power and control system14US 10,526,085 B2Bell Textron Inc. · 2020
- Variable directional thrust for helicopter tail anti-torque system12US 10,377,479 B2Bell Helicopter Textron Inc. · 2019