B64C 27/06
With single rotor
Official title: with single rotor
B64C27/06 (With single rotor) appears on 225 US grants and 257 published applications in this corpus.
Search patents in B64C- Granted patents
- 225
- Published applications
- 257
- Assignees
- 61
- Inventors
- 489
- Latest grant
- 15 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1981 | 1 | 0 |
| 1982 | 0 | 0 |
| 1983 | 0 | 0 |
| 1984 | 2 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 0 | 0 |
| 1992 | 0 | 0 |
| 1993 | 0 | 0 |
| 1994 | 0 | 0 |
| 1995 | 1 | 0 |
| 1996 | 0 | 0 |
| 1997 | 0 | 0 |
| 1998 | 0 | 0 |
| 1999 | 0 | 0 |
| 2000 | 1 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 1 |
| 2003 | 0 | 0 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 1 | 1 |
| 2007 | 0 | 1 |
| 2008 | 0 | 0 |
| 2009 | 0 | 1 |
| 2010 | 1 | 1 |
| 2011 | 0 | 0 |
| 2012 | 1 | 2 |
| 2013 | 0 | 2 |
| 2014 | 2 | 6 |
| 2015 | 6 | 3 |
| 2016 | 6 | 14 |
| 2017 | 5 | 33 |
| 2018 | 14 | 33 |
| 2019 | 24 | 22 |
| 2020 | 41 | 32 |
| 2021 | 22 | 27 |
| 2022 | 23 | 27 |
| 2023 | 29 | 20 |
| 2024 | 25 | 10 |
| 2025 | 13 | 9 |
| 2026 | 5 | 12 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
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Most cited
By later US patents
- System and method for monitoring aircraft engine health and determining engine power available, and applications thereof37US 7,031,812 B1Howell Instruments, Inc. · 2006
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- High speed helicopter25US 4,720,059 A1988
- Helicopter engine control with rotor speed decay anticipator24US 4,466,526 AChandler Evans Inc. · 1984