F05D 2260/70
Adjusting of angle of incidence or attack of rotating blades
F05D2260/70 (Adjusting of angle of incidence or attack of rotating blades) appears on 423 US grants and 440 published applications in this corpus.
Search patents in F05D- Granted patents
- 423
- Published applications
- 440
- Assignees
- 109
- Inventors
- 758
- Latest grant
- 29 Sep 2026
Filings by year
| Year | Granted patents | Published applications |
|---|---|---|
| 1976 | 5 | 0 |
| 1977 | 6 | 0 |
| 1978 | 3 | 0 |
| 1979 | 2 | 0 |
| 1980 | 0 | 0 |
| 1981 | 0 | 0 |
| 1982 | 0 | 0 |
| 1983 | 2 | 0 |
| 1984 | 0 | 0 |
| 1985 | 3 | 0 |
| 1986 | 3 | 0 |
| 1987 | 3 | 0 |
| 1988 | 12 | 0 |
| 1989 | 0 | 0 |
| 1990 | 5 | 0 |
| 1991 | 2 | 0 |
| 1992 | 4 | 0 |
| 1993 | 6 | 0 |
| 1994 | 2 | 0 |
| 1995 | 3 | 0 |
| 1996 | 2 | 0 |
| 1997 | 4 | 0 |
| 1998 | 1 | 0 |
| 1999 | 1 | 0 |
| 2000 | 0 | 0 |
| 2001 | 1 | 0 |
| 2002 | 2 | 1 |
| 2003 | 1 | 3 |
| 2004 | 3 | 4 |
| 2005 | 1 | 4 |
| 2006 | 5 | 5 |
| 2007 | 1 | 6 |
| 2008 | 6 | 4 |
| 2009 | 4 | 7 |
| 2010 | 2 | 9 |
| 2011 | 5 | 11 |
| 2012 | 8 | 18 |
| 2013 | 7 | 10 |
| 2014 | 10 | 12 |
| 2015 | 13 | 11 |
| 2016 | 8 | 21 |
| 2017 | 11 | 19 |
| 2018 | 23 | 21 |
| 2019 | 21 | 30 |
| 2020 | 38 | 35 |
| 2021 | 31 | 40 |
| 2022 | 33 | 28 |
| 2023 | 35 | 29 |
| 2024 | 31 | 38 |
| 2025 | 33 | 25 |
| 2026 | 21 | 49 |
By publication year. Applications have been published since 2001. 2026 runs to 8 Oct.
Subgroups
Granted patents
- F05D 2260/74By turning around an axis perpendicular the rotor centre lineIndexing code206
- F05D 2260/79Bearing, support or actuation arrangements thereforIndexing code145
- F05D 2260/76The adjusting mechanism using auxiliary power sourcesIndexing code111
- F05D 2260/77The adjusting mechanism driven or triggered by centrifugal forcesIndexing code23
- F05D 2260/75The adjusting mechanism not using auxiliary power sourcesIndexing code13
- F05D 2260/72By turning around an axis parallel to the rotor centre lineIndexing code10
- F05D 2260/78The adjusting mechanism driven or triggered by aerodynamic forcesIndexing code7
- F05D 2260/71As a function of flow velocityIndexing code5
Recent patents
- Propeller assembly including a rigging free beta tube29 Sep 2026US 12,747,670 B1GE Aviation Systems LLC
- Turbine engine including a fan blade sensor system1 Sep 2026US 12,723,517 B2General Electric Company
- Rotatable trunnions for variable pitch blades21 Jul 2026US 12,687,116 B1General Electric Company
- Controlling rate of rotor feather by system secondary to primary blade angle control system14 Jul 2026US 12,679,527 B2Pratt & Whitney Canada Corp.
- Protection for a circuit for controlling the orientation of propeller blades of an aircraft engine7 Jul 2026US 12,674,475 B2Safran Aircraft Engines
- Turbofan engine including a fan actuation system8 Oct 2026US 2026/0309036 A1General Electric Company
- Gas turbine propulsion system with variable pitch fan and method for operating the system8 Oct 2026US 2026/0309094 A1Rtx Corporation
- Turbofan engine including a fan actuation system8 Oct 2026US 2026/0309162 A1General Electric Company
- Fan rotor with actuator with locking device24 Sep 2026US 2026/0285475 A1Safran Aircraft Engines
- Turbofan engine including a fan actuation system24 Sep 2026US 2026/0286973 A1General Electric Company
Most cited
By later US patents
- Pitch change mechanism100US 5,174,716 AGeneral Electric Company · 1992
- Electromechanical apparatus for varying blade of variable-pitch fan blades83US 5,281,094 AAlliedSignal Inc. · 1994
- Ducted prop engine73US 4,704,862 AUnited Technologies Corporation · 1987
- Aircraft engine unducted fan blade pitch control system63US 4,927,329 AGeneral Electric Company · 1990
- Jet engine with noise suppressing mixing and exhaust sections63US 5,269,139 AThe Boeing Company · 1993