B64C 2027/003
Mounted on rotor hub
Official title: {mounted on rotor hub, e.g. a rotary force generator}
B64C2027/003 (Mounted on rotor hub) appears on 117 US grants and 106 published applications in this corpus.
Search patents in B64C- Granted patents
- 117
- Published applications
- 106
- Assignees
- 38
- Inventors
- 172
- Latest grant
- 30 Dec 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1979 | 1 | 0 |
| 1980 | 1 | 0 |
| 1981 | 2 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 3 | 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 | 2 | 0 |
| 1998 | 0 | 0 |
| 1999 | 2 | 0 |
| 2000 | 3 | 0 |
| 2001 | 0 | 1 |
| 2002 | 1 | 0 |
| 2003 | 0 | 0 |
| 2004 | 0 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 2 |
| 2007 | 0 | 1 |
| 2008 | 1 | 0 |
| 2009 | 0 | 2 |
| 2010 | 1 | 7 |
| 2011 | 2 | 5 |
| 2012 | 3 | 6 |
| 2013 | 7 | 1 |
| 2014 | 3 | 3 |
| 2015 | 5 | 4 |
| 2016 | 1 | 6 |
| 2017 | 1 | 21 |
| 2018 | 5 | 4 |
| 2019 | 8 | 13 |
| 2020 | 24 | 13 |
| 2021 | 12 | 5 |
| 2022 | 9 | 7 |
| 2023 | 9 | 3 |
| 2024 | 5 | 2 |
| 2025 | 3 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Force generator with center attachment and/or redundant attachment points30 Dec 2025US 12,509,221 B2Lord Corporation
- Rotary damper25 Nov 2025US 12,480,559 B2Claverham Limited
- Vibration control assembly4 Feb 2025US 12,214,869 B2Lockheed Martin Corporation
- Anti-phase noise suppression rotor technologies10 Dec 2024US 12,162,591 B1United States of America as represented by the Administrator of NASA
- Heated pendulum damper8 Oct 2024US 12,110,117 B2Goodrich Corporation
- Force generator with center attachment and/or redundant attachment points22 Feb 2024US 2024/0059404 A1Lord Corporation
- Vibration control assembly22 Feb 2024US 2024/0059405 A1Lockheed Martin Corporation
- Active propeller system24 Aug 2023US 2023/0264839 A1Ideaforge Technology Pvt. Ltd.
- Heated pendulum damper23 Feb 2023US 2023/0059844 A1Goodrich Corporation
- Spring-integrated rotors19 Jan 2023US 2023/0012688 A1Aurora Flight Sciences Corporation, a subsidiary of The Boeing Company
Most cited
By later US patents
- Vibration absorbers45US 4,145,936 AWestland Aircraft Limited · 1979
- Device for damping the vibrations of a rotary-wing aircraft rotor40US 4,255,084 ASociete Nationale Industrielle et Aerospatiale · 1981
- Rotor system vibration absorber40US 5,647,726 ABell Helicopter Textron Inc. · 1997
- Device for reducing the vibrations generated by a lift rotor of a rotary-wing aircraft39US 6,045,090 AEurocopter · 2000
- Vibration isolator38US 4,619,349 AMesserschmitt-Boelkow-Blohm Gesellschaft mit beschraenkter Haftung · 1986