ClassID:

72146

B64C27/68 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Mechanisms for controlling blade adjustment or movement relative to rotor head, e.g. lag-lead movement; Transmitting means mechanical using electrical energy

Recent Application in this class:
#1
20260109453
2026-04-23

SYSTEM FOR TRANSMITTING COMMANDS TO A PLURALITY OF HYDRAULIC SERVO-ACTUATORS

#2
20250306610
2025-10-02

ADAPTIVE ANTI-LASER SYSTEM

#3
20250296681
2025-09-25

CONTROL SYSTEM, MOVING OBJECT, AND INFORMATION PROCESSING METHOD OF CONTROL SYSTEM

#4
20250273980
2025-08-28

MACHINE AND PROCESS FOR DRIVING AN ELECTRIC MOTOR

#5
20250066014
2025-02-27

SYSTEM FOR TRANSMITTING COMMANDS TO A HYDRAULIC SERVO ACTUATOR

#6
20240359794
2024-10-31

Anti-Resonance System for Variable Speed Rotors

#7
20240336366
2024-10-10

PROPULSION ASSEMBLY

#8
20240300663
2024-09-12

THRUST GENERATOR FOR ROTORCRAFT

#9
20240208645
2024-06-27

Anti-Backlash Flight Control Actuator System

#10
20240069575
2024-02-29

Adaptive anti-laser system

#11
20230322375
2023-10-12

Helicopter rotor system

#12
20230312120
2023-10-05

Rotorcraft autorotation control through electrical braking

#13
20230261493
2023-08-17

Adaptive battery charging system and method

#14
20230202649
2023-06-29

Actuator for aviation applications

#15
20230174228
2023-06-08

Stability and control augmentation system

#16
20230159159
2023-05-25

SYSTEMS AND METHODS FOR IMPROVED ROTOR ASSEMBLY FOR USE WITH A STATOR

#17
20230098029
2023-03-30

Electrical conductor system for a rotor blade and method of manufacturing the electrical conductor system

#18
20220388672
2022-12-08

Propulsion assembly

#19
20220371726
2022-11-24

Electromechanical servocontrol, swashplate system having at least four electromechanical servocontrols, and rotorcraft

#20
20220315215
2022-10-06

Convertible aircraft system

#21
20220267016
2022-08-25

Electrically powered rotary-wing aircraft

#22
20220227488
2022-07-21

Preventing helicopter loss of tail rotor effectiveness

#23
20220227487
2022-07-21

Rotary-wing aircraft individual rotor blade pitch control system

#24
20220194573
2022-06-23

Thrusters for Multi-Copter Yaw Control and Forward Flight

#25
20210365052
2021-11-25

Adaptive anti-laser system

#26
20210323661
2021-10-21

Coaxial helicopter and control method thereof

#27
20210316851
2021-10-14

Scissoring propeller with centripetally actuated centering lever lock

#28
20210309360
2021-10-07

APPARATUS FOR AERIAL TRANSPORTATION OF PAYLOAD

#29
20210276707
2021-09-09

Electric drive system line replaceable unit with integrated cyclic actuation

#30
20210276706
2021-09-09

Electric drive system line replaceable unit with integrated collective actuation

#31
20210253232
2021-08-19

Hover-capable aircraft

#32
20210245871
2021-08-12

Rotorcraft autopilot and methods

#33
20210232159
2021-07-29

System and Method for Controlling Rotorcraft Load Priority

#34
20210229802
2021-07-29

Fail-operational VTOL aircraft

#35
20210197977
2021-07-01

Systems and methods for stopping movement of operational members

#36
20210163128
2021-06-03

Electronic control of blade pitch on a tiltrotor

#37
20210070435
2021-03-11

Electromechanical actuator for setting a collective offset for a helicopter on a blade-specific basis

#38
20210061454
2021-03-04

Pitch control assembly for an aircraft-bladed rotor

#39
20210061444
2021-03-04

Parallel actuation control system providing dual mode operator control inputs for a compound aircraft

#40
20210047031
2021-02-18

Rotorcraft including variable blade torsional angle mechanism

#41
20200398980
2020-12-24

Flight control handle and a hybrid rotorcraft provided with a lift rotor and with at least one propeller propulsive rotor that generates thrust

#42
20200283132
2020-09-10

Systems and methods for reducing noise based on effective rotor area relative to a center of rotation

#43
20200277048
2020-09-03

Systems and methods for variable blade pitch control

#44
20200277047
2020-09-03

Systems and methods for dynamically triggering independent stator coils to control rotational velocity of a rotor

#45
20200172233
2020-06-04

Systems and methods for controlling lift using contra-rotating rotors

#46
20200161991
2020-05-21

Systems and methods for dynamically triggering independent stator coils to control pitch of a rotor blade

#47
20200156779
2020-05-21

Systems and methods for independent pitch control of rotor blades of rotor assembly to achieve directional control

#48
20200148342
2020-05-14

Systems and methods for improved rotor assembly for use with a stator

#49
20200148333
2020-05-14

Systems and methods for drive control of a magnetically levitated rotor

#50
20200122827
2020-04-23

Multi-rotor Vehicle with Yaw Control and Autorotation

#51
20200079501
2020-03-12

Vertical take-off and landing (VTOL) aircraft with cruise rotor positioning control for minimum drag

#52
20200031490
2020-01-30

System and method for tail rotor margin awareness

#53
20200023958
2020-01-23

Rotorcraft anti-torque systems and methods therefor

#54
20200023952
2020-01-23

Propelling system with variable aerodynamic controls

#55
20190389570
2019-12-26

Electric powered direct drive rotor motor with integrated mechanical flight control

#56
20190382108
2019-12-19

Actuator for use in aviation

#57
20190359328
2019-11-28

LARGE PAYLOAD UNMANNED AERIAL VEHICLE

#58
20190352003
2019-11-21

Rotorcraft autopilot and methods

#59
20190329876
2019-10-31

Rotor for an aircraft capable of hovering and relative method

#60
20190276142
2019-09-12

Torque path coupling assemblies for tiltrotor aircraft

#61
20190193835
2019-06-27

Controlling blade pitch by a plurality of electric motors

#62
20190161180
2019-05-30

System and method for tactile cueing through rotorcraft pilot controls using variable friction and force gradient

#63
20190157961
2019-05-23

Linear motor translator

#64
20190023383
2019-01-24

Tilting coaxial rotor for a rotary wing aircraft

#65
20180348794
2018-12-06

System and method for controlling rotorcraft load priority

#66
20180346110
2018-12-06

Rotorcraft autopilot system, components and methods

#67
20180340579
2018-11-29

Magnetorheological fluid clutch apparatus and control systems

#68
20180244379
2018-08-30

Dual-input mechanical bypass linkage apparatus and methods

#69
20180244377
2018-08-30

Multi-rotor roto-craft flying machine

#70
20180201368
2018-07-19

Control rod for adjusting a rotor blade of a helicopter

#71
20180101180
2018-04-12

Simultaneous flight path control and attitude control with control axis splitting

#72
20180093763
2018-04-05

Rotorcraft autopilot and methods

#73
20180022448
2018-01-25

Active rotor damping system

#74
20170306852
2017-10-26

Electrical and mechanical connections through firewall

#75
20170253328
2017-09-07

Helicopter anti-torque rotor

#76
20170253320
2017-09-07

Fly-by-wire retrofit kit

#77
20170210466
2017-07-27

Initial rotor state compensation for a rotorcraft

#78
20170129599
2017-05-11

Rotorcraft autopilot system, components and methods

#79
20170113792
2017-04-27

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

#80
20170057629
2017-03-02

Separation of collective and cyclic actuation

#81
20160333947
2016-11-17

Magnetorheological fluid clutch apparatus and control systems

#82
20160311528
2016-10-27

Multi-rotor vehicle with yaw control and autorotation

#83
20160251079
2016-09-01

Actuator for use in aviation

#84
20160221674
2016-08-04

Magnetorheological actuator with torsional spring

#85
20160221673
2016-08-04

Electro-hydraulic on-blade actuation system

#86
20160221672
2016-08-04

Magnetorheological haptic trim actuator

#87
20160207610
2016-07-21

Aircraft with drive element coupled to gearbox housing exterior

#88
20160152330
2016-06-02

Rotorcraft autopilot and methods

#89
20160023758
2016-01-28

Rotorcraft autopilot system, components and methods

#90
20150360771
2015-12-17

Fly by wire servos with internal loop closure

#91
20150267762
2015-09-24

Magnetorheological flight control clutch system

#92
20150232177
2015-08-20

Fly by wire servos with internal loop closure

#93
20150217866
2015-08-06

Magnetorheological rotorcraft actuator

#94
20150217865
2015-08-06

Magnetorheological rotorcraft actuation system

#95
20140284419
2014-09-25

Aircraft with pivoting rotor mast

#96
20140027566
2014-01-30

Rotorcraft autopilot system, components and methods

#97
20140027564
2014-01-30

Rotorcraft autopilot and methods

#98
20130308426
2013-11-21

Deployable ground sensors

#99
20130168501
2013-07-04

Primary flight controls

#100
20130087660
2013-04-11

Device for assisting the piloting of a rotorcraft

#101
20120282103
2012-11-08

Rotor assembly

#102
20110057071
2011-03-10

Life improving flight control system

#103
20110046824
2011-02-24

Device for piloting a vehicle and method for the motorised assistance and control of such a piloting device

#104
20110031346
2011-02-10

Method of assisting piloting, piloting assistance means, and a piloting assistance device for a rotorcraft using said piloting assistance means to implement said piloting assistance method

#105
20100150719
2010-06-17

Swashplateless rotorcraft with fault tolerant linear electric actuator

#106
20100089053
2010-04-15

HYBRID ELECTROMECHANICAL/HYDRO-MECHANICAL ACTUATION CONTROL SYSTEM

#107
20100078524
2010-04-01

Full authority fly-by-wire pedal system

#108
20100072322
2010-03-25

Full authority fly-by-wire pedal system

#109
20090242691
2009-10-01

Swashplate trajectory control

#110
20090140095
2009-06-04

Electric powered rotary-wing aircraft

#111
20090102413
2009-04-23

Electromechanical flight control system and method for rotorcraft

#112
20090065648
2009-03-12

Compensation actuator for a rotorcraft flight control

#113
20080179463
2008-07-31

Device for compensating for the mechanical play of a helicopter flight control

#114
20070205333
2007-09-06

Full authority fly-by-wire pedal system

#115
17893540
2024-04-09

Electric rotorcraft cyclic control system

#116
17861698
2024-12-31

Electrically driven blade control for rotorcraft

#117
17644755
2022-04-05

Helicopter with coaxial counter-rotating annular electric motor rotors

#118
13536475
2018-09-18

Electrically driven blade control for rotorcraft