ClassID:

71963

B64C11/305 - CPC Classification

Classification description:

Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft; Blade pitch-changing mechanisms characterised by being influenced by other control systems, e.g. fuel supply

Recent Application in this class:
#1
20260008552
2026-01-08

ENERGY RECOVERY SYSTEM AND METHOD FOR AN AIRCRAFT

#2
20250326485
2025-10-23

PROPELLER PROPULSION SYSTEMS

#3
20250319980
2025-10-16

METHOD AND SYSTEM FOR OPERATING A HYBRID AIRCRAFT ENGINE

#4
20250083799
2025-03-13

Direct Thrust Control Method for Aircraft Thruster

#5
20250042558
2025-02-06

AIRCRAFT WITH AN UNDUCTED FAN PROPULSOR

#6
20250019065
2025-01-16

Pitch change mechanism for an aircraft engine

#7
20240429850
2024-12-26

INDEPENDENT MITIGATION FOR ISOLATION OF ELECTRIC MOTOR

#8
20240367776
2024-11-07

PROTECTION SYSTEM

#9
20240190565
2024-06-13

FAIL-OPERATIONAL VTOL AIRCRAFT

#10
20240186935
2024-06-06

DEVICE FOR CONTROLLING A LEAST ONE ELECTRIC MOTOR FOR AN AIRCRAFT-PROPELLING ASSEMBLY

#11
20240166333
2024-05-23

METHOD OF CONTROLLING TILT ROTOR, APPARATUS FOR CONTROLLING TILT ROTOR, AND AIRCRAFT INCLUDING THE APPARATUS

#12
20230415883
2023-12-28

Aircraft engine

#13
20230339607
2023-10-26

Active blade-pitch change systems and methods

#14
20230303274
2023-09-28

Systems and Methods for Controlling Engine Speed and/or Pitch of Propulsion Members for Aerial Vehicles

#15
20230202653
2023-06-29

AIRCRAFT AND METHOD

#16
20230192305
2023-06-22

Control device of flying object

#17
20230122557
2023-04-20

AIRCRAFT ELECTRIC PROPULSION SYSTEM CONTROL METHOD

#18
20230026233
2023-01-26

System for controlling propeller and rotor RPM of aerial vehicle having multiple power devices

#19
20230021800
2023-01-26

MULTI-PROPULSOR ELECTRIC AIRCRAFT

#20
20230002042
2023-01-05

Fail-operational VTOL aircraft

#21
20220411088
2022-12-29

Automatic aircraft powerplant control

#22
20220340260
2022-10-27

System and method for detecting and mitigating a propeller failure condition

#23
20220333535
2022-10-20

Engine and propeller control system

#24
20220243600
2022-08-04

Propeller control unit validation

#25
20220063792
2022-03-03

Pitch angles of an aircraft engine rotor assembly

#26
20220009615
2022-01-13

Hybrid electric powerplant (HEP) control architecture

#27
20210387723
2021-12-16

Vertical take-off and landing aircraft using hybrid-electric propulsion system and the control method

#28
20210347472
2021-11-11

Fail-operational vtol aircraft

#29
20210291969
2021-09-23

Method and a system for reducing the in-flight noise from a hybrid helicopter by managing the angle of incidence of its main rotor and the thrust from each propeller

#30
20210276692
2021-09-09

Noise mitigation system for an unducted propulsive rotor of an aircraft

#31
20210025338
2021-01-28

SYSTEM AND METHOD FOR OPERATING A TURBOPROP ENGINE

#32
20210009278
2021-01-14

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

#33
20210009252
2021-01-14

System and method for propeller response enhancement during transition from ground to flight configuration for a turbopropeller engine

#34
20200283124
2020-09-10

Propeller speed overshoot preventing logic

#35
20200198764
2020-06-25

Propeller pitch control system for aircraft turboprop engines

#36
20200189720
2020-06-18

Propeller system

#37
20200165984
2020-05-28

Integrated propeller and engine controller

#38
20200165983
2020-05-28

Engine and propeller control system

#39
20200151553
2020-05-14

Machine learning based airflow sensing for aircraft

#40
20200115037
2020-04-16

System and method for slowing down aircraft

#41
20200023957
2020-01-23

Systems and methods for acoustic radiation control

#42
20200023956
2020-01-23

Pitch control system

#43
20200001979
2020-01-02

Method and apparatus for proximity control between rotating and non-rotating aircraft components

#44
20190390607
2019-12-26

Method for controlling the speed and the power of a turbine engine propeller

#45
20190384234
2019-12-19

Turbopropeller engine control system and method, providing optimized efficiency

#46
20190352014
2019-11-21

Power management between a propulsor and a coaxial rotor of a helicopter

#47
20190135412
2019-05-09

Selectively thrusting propulsion units for aerial vehicles

#48
20190055901
2019-02-21

Method and system for limiting power of an engine

#49
20180362146
2018-12-20

Tilt-rotor multicopters with variable pitch propellers

#50
20180327083
2018-11-15

Single lever powerplant control on twin turbopropeller aircraft

#51
20180327081
2018-11-15

Systems and methods for noise mitigation for hybrid and electric aircraft

#52
20180319491
2018-11-08

Systems and methods for acoustic radiation control

#53
20180112603
2018-04-26

Power plant thrust management system for turboprop engines

#54
20180023489
2018-01-25

Single Input Engine Controller and System

#55
20170275011
2017-09-28

Power management between a propulsor and a coaxial rotor of a helicopter

#56
20170274981
2017-09-28

Selectively thrusting propulsion units for aerial vehicles

#57
20170233066
2017-08-17

Rotary wing aircraft pitch control system

#58
20160281611
2016-09-29

Variable inlet guide vane scheduling

#59
20160229547
2016-08-11

Method and apparatus for controlling a turboprop engine

#60
20160169112
2016-06-16

Fuel supply apparatus for aircraft engine

#61
20160159461
2016-06-09

Method and system for model based control for variable pitch fan engines and turbo-shaft, turbo-propeller engines

#62
20160121998
2016-05-05

Method for controlling an aircraft propeller system during thrust reversal

#63
20160083076
2016-03-24

Automatic propeller torque protection system

#64
20150367950
2015-12-24

Hybrid turbo electric aero-propulsion system control

#65
20150314853
2015-11-05

Control device for an engine

#66
20150267619
2015-09-24

Gas turbine engine performance seeking control

#67
20140023499
2014-01-23

Propeller operation

#68
20110190966
2011-08-04

Control System For An Aircraft Propeller Drive

#69
20110186679
2011-08-04

AIRCRAFT WITH AT LEAST TWO PROPELLER DRIVES ARRANGED AT A DISTANCE FROM ONE ANOTHER IN THE SPAN WIDTH DIRECTION OF THE WINGS

#70
20080308685
2008-12-18

Solar powered wing vehicle using flywheels for energy storage

#71
20080283671
2008-11-20

Engine anticipation for rotary-wing aircraft

#72
20070110577
2007-05-17

Control logic for a propeller system

#73
18333696
2024-08-27

Aircraft and associated method of controlling an electric aircraft powerplant