B64C27/021 - CPC Classification Index

ClassID:

72092 ⎘

B64C27/021 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Gyroplanes Rotor or rotor head construction

Sub-classes:

B64C27/022 » {Devices for folding or adjusting the blades} 9
B64C27/023 » {Construction of the blades; Coating of the blades} 6
B64C27/024 » {Devices for shifting the rotor axis} 7
B64C27/025 » {Rotor drives, in particular for taking off; Combination of autorotation rotors and driven rotors} 45
B64C27/026 » {Devices for converting a fixed wing into an autorotation rotor and viceversa} 1

Recent Application in this class:

20230339601

2023-10-26

ROTOR ASSEMBLY

20220204157

2022-06-30

Hybrid gyrodyne aircraft

20220097834

2022-03-31

Hybrid gyrodyne aircraft

20220055742

2022-02-24

Hybrid gyrodyne aircraft

20220055741

2022-02-24

Hybrid gyrodyne aircraft

20220043465

2022-02-10

Hybrid gyrodyne aircraft

20190077501

2019-03-14

System and method for vertical take-off in an autogyro

20190009896

2019-01-10

Mounting plates for rotor hub accessories

20160023751

2016-01-28

ENERGY HARVESTING MECHANISM FOR GYROPLANES AND GYROCOPTERS

#10

20110139928

2011-06-16

Aerovehicle system including plurality of autogyro assemblies

#11

20080056897

2008-03-06

Counter rotating rotor head

#12

20050058536

2005-03-17

Rotor brake as well as rotor and rotary-wing aircraft with such a rotor brake

#13

18895111

2025-12-30

Aerodynamic rotor blade configurations

#14

17948545

2024-10-22

Aerodynamic rotor blade configurations