B64C 27/007
Adapted for detection of blade cracks
Official title: {adapted for detection of blade cracks}
B64C27/007 (Adapted for detection of blade cracks) appears on 16 US grants and 6 published applications in this corpus.
Search patents in B64C- Granted patents
- 16
- Published applications
- 6
- Assignees
- 16
- Inventors
- 35
- Latest grant
- 26 Aug 2025
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 1 | 0 |
| 1977 | 1 | 0 |
| 1978 | 1 | 0 |
| 1979 | 0 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 1 | 0 |
| 1983 | 0 | 0 |
| 1984 | 0 | 0 |
| 1985 | 0 | 0 |
| 1986 | 0 | 0 |
| 1987 | 0 | 0 |
| 1988 | 1 | 0 |
| 1989 | 0 | 0 |
| 1990 | 0 | 0 |
| 1991 | 1 | 0 |
| 1992 | 0 | 0 |
| 1993 | 1 | 0 |
| 1994 | 0 | 0 |
| 1995 | 0 | 0 |
| 1996 | 1 | 0 |
| 1997 | 0 | 0 |
| 1998 | 1 | 0 |
| 1999 | 0 | 0 |
| 2000 | 0 | 0 |
| 2001 | 0 | 0 |
| 2002 | 0 | 0 |
| 2003 | 0 | 1 |
| 2004 | 1 | 0 |
| 2005 | 0 | 0 |
| 2006 | 0 | 1 |
| 2007 | 1 | 0 |
| 2008 | 0 | 0 |
| 2009 | 1 | 0 |
| 2010 | 0 | 0 |
| 2011 | 0 | 0 |
| 2012 | 0 | 1 |
| 2013 | 0 | 0 |
| 2014 | 0 | 0 |
| 2015 | 1 | 1 |
| 2016 | 1 | 0 |
| 2017 | 0 | 0 |
| 2018 | 0 | 0 |
| 2019 | 0 | 0 |
| 2020 | 0 | 2 |
| 2021 | 0 | 0 |
| 2022 | 1 | 0 |
| 2023 | 0 | 0 |
| 2024 | 0 | 0 |
| 2025 | 1 | 0 |
By publication year. Applications have been published since 2001.
Recent patents
- Sensorless propeller damage detection systems and methods26 Aug 2025US 12,397,908 B1Amazon Technologies, Inc.
- Method for detecting damage to a rotor of an aircraft8 Mar 2022US 11,267,562 B2ZF Friedrichshafen AG
- Embedding fiber optic cables in rotorcraft composites22 Nov 2016US 9,500,561 B2Bell Helicopter Textron Inc.
- Continuous flow structural health monitoring system and method12 May 2015US 9,031,796 B2Structural Monitoring Systems Ltd.
- System for monitoring damage to a rotor blade of a rotary-wing aircraft6 Jan 2009US 7,473,077 B2Eurocopter
- Method for detecting damage to a rotor of an aircraft6 Aug 2020US 2020/0247533 A1ZF Friedrichshafen AG
- Debris retention23 Apr 2020US 2020/0123924 A1ROLLS-ROYCE plc
- Embedding fiber optic cables in rotorcraft composites24 Dec 2015US 2015/0370030 A1Bell Helicopter Textron Inc.
- Continuous flow structural health monitoring system and method13 Sep 2012US 2012/0232807 A1Structural Monitoring Systems Ltd.
- System for monitoring damage to a rotor blade of a rotary-wing aircraft26 Oct 2006US 2006/0239818 A1Eurocopter
Most cited
By later US patents
- Structural monitoring system for helicopter rotor components26US 6,693,548 B2Sikorsky Aircraft Corporation · 2004
- Monitoring apparatus for monitoring impending faults in the integrity of a component or structure25US 5,770,794 ATulip Bay Pty Ltd · 1998
- Crack detecting means for rotor blades of rotary wing aircrafts22US 4,026,660 AKawasaki Jukogyo Kabushiki Kaisha · 1977
- Helicopter blade crack indicator19US 3,985,318 ATyco Laboratories, Inc. · 1976
- Recording monitor for structure faults15US 4,106,332 ATextron Inc. · 1978