Patents-Review.com
ClassID:

71968 ⎘

B64C11/34 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms mechanical automatic

Sub-classes:
Recent Application in this class:
#1
20260097842
2026-04-09

PROPULSION ASSEMBLY FOR AN AIRCRAFT PROVIDED WITH A PROPELLER AND A CYCLIC PITCH DEVICE FOR THE BLADES OF THE PROPELLER AND METHOD FOR REGULATING THE CYCLIC PITCH OF THE BLADES OF THE PROPELLER

 #2
20250382888
2025-12-18

PITCH-CHANGE MECHANISM WITH PITCH-LOCKING DEVICE COMPRISING A SATELLITE ROLLER SCREW

 #3
20250229916
2025-07-17

MULTICOPTER

 #4
20250187719
2025-06-12

DISENGAGEMENT FOR REVERSE PROPELLER PROTECTION

 #5
20250091710
2025-03-20

Automated Variable Pitch Propeller Blade

 #6
20240327013
2024-10-03

SYSTEM FOR CONTROLLING A PROPULSOR ASSEMBLY OF AN ELECTRIC AIRCRAFT

 #7
20220274686
2022-09-01

Automated variable pitch propeller blade

 #8
20210380221
2021-12-09

CONTINUOUS VARIABLE PITCH ROTOR SYSTEM

 #9
20210291975
2021-09-23

Method of providing torque protection and/or thrust protection for propellers of a hybrid helicopter, and a hybrid helicopter

 #10
20210284322
2021-09-16

Propeller blade angle feedback arrangement and method

 #11
20210016864
2021-01-21

Reluctance driven axial modulating mechanism for rotating shafts realizing a controllable pitch propeller/fan/turbine

 #12
20210009278
2021-01-14

System and method for combined propeller speed and propeller pitch control for a turbopropeller engine

 #13
20210001974
2021-01-07

Unmanned aerial vehicle

 #14
20200324877
2020-10-15

METHOD AND SYSTEM FOR FEATHERING A PROPELLER

 #15
20200255122
2020-08-13

Automated variable pitch propeller blade

 #16
20200140073
2020-05-07

PASSIVE VARIABLE PITCH PROPELLERS

 #17
20200023956
2020-01-23

Pitch control system

 #18
20200017234
2020-01-16

Propeller blade angle feedback arrangement and method

 #19
20190193836
2019-06-27

High stiffness hub assemblies for rotor systems

 #20
20190193835
2019-06-27

Controlling blade pitch by a plurality of electric motors

 #21
20190047714
2019-02-14

Single lever turboprop control systems and methods utilizing torque-based and power-based scheduling

 #22
20190031360
2019-01-31

System and method for determining minimum pitch and minimum gas generator idle condition

 #23
20190031318
2019-01-31

Propeller arrangement for an aircraft

 #24
20180363626
2018-12-20

Ram air turbine governor spring positioning

 #25
20180362146
2018-12-20

Tilt-rotor multicopters with variable pitch propellers

 #26
20180273160
2018-09-27

High stiffness hub assembly for proprotor systems

 #27
20180155015
2018-06-07

Automatic, active blade tracking and balance system

 #28
20180043988
2018-02-15

Automated variable pitch propeller blade

 #29
20170341733
2017-11-30

ROTOR HEAD FOR PROP-ROTOR

 #30
20170233066
2017-08-17

Rotary wing aircraft pitch control system

 #31
20170113792
2017-04-27

System for controlling a rotorcraft rotor, a rotorcraft fitted with such a system, and an associated control method

 #32
20170081038
2017-03-23

Single lever turboprop control systems and methods utilizing torque-based and power based scheduling

 #33
20160083076
2016-03-24

Automatic propeller torque protection system

 #34
20150064006
2015-03-05

Ram air turbine startup

 #35
20120114485
2012-05-10

Ram air turbine startup

 #36
20070110577
2007-05-17

Control logic for a propeller system

 #37
17890063
2023-07-18

Actuated blade-pitch change mechanisms

 #38
17460014
2022-03-22

Self adjusting variable pitch aircraft propeller