ClassID:

72176

B64C2027/8281 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto characterised by the provision of an auxiliary rotor or fluid-jet device for counter-balancing lifting rotor torque or changing direction of rotorcraft comprising in addition rudders, tails, fins, or the like comprising horizontal tail planes

Recent Application in this class:
#1
20260145778
2026-05-28

Control of Vertical Take Off and Landing Aircraft

#2
20260116526
2026-04-30

Rotary-Wing Aircraft Provided with at least one Multi-Plane Pitch Stabilizer

#3
20250289567
2025-09-18

ROTORCRAFT WITH ANTI-TORQUE AIR SYSTEM AND TAIL ROTOR(S)

#4
20240239512
2024-07-18

ROTORCRAFT WITH A BLADE TIP ILLUMINATION SYSTEM

#5
20240174354
2024-05-30

A ROTORCRAFT WITH A TAIL BOOM AND AN INTEGRAL STABILIZER ARRANGEMENT

#6
20240067332
2024-02-29

Rotary shaft for an aircraft

#7
20240034464
2024-02-01

LED TAIL ROTOR SAFETY AND STATUS INDICATION LIGHTING SYSTEM

#8
20230294828
2023-09-21

Rotary wing vehicle

#9
20230234706
2023-07-27

ROTARY WING VEHICLE

#10
20230192284
2023-06-22

MAST DAMPENER FOR A ROTORCRAFT

#11
20230174219
2023-06-08

HELICOPTER, HELICOPTER KIT AND ASSOCIATED RECONFIGURATION METHOD

#12
20230136833
2023-05-04

Rotor blade non-counterbored retention assembly via a sliding clamped bushing

#13
20230022308
2023-01-26

Helicopter, helicopter kit and associated reconfiguration method

#14
20230002041
2023-01-05

Rotorcraft with a stabilizer wing

#15
20220185465
2022-06-16

Rotary wing aircraft with an asymmetrical rear section

#16
20220073196
2022-03-10

Anti-torque rotor for a helicopter

#17
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

#18
20210139140
2021-05-13

Rotary wing vehicle

#19
20210107625
2021-04-15

Active horizontal stabilizer for high speed rotorcraft

#20
20210047029
2021-02-18

Centerline tiltrotor

#21
20210031908
2021-02-04

Propulsion systems for rotorcraft

#22
20200398976
2020-12-24

Mount systems for pylon assemblies with coaxial rotors

#23
20200385107
2020-12-10

Low drag sail fairing for coaxial rotor

#24
20200339253
2020-10-29

Rotorcraft with a stabilizer wing

#25
20200331600
2020-10-22

Anti-torque and propulsion system for rotorcraft

#26
20200262549
2020-08-20

Vibration isolation systems for advancing blade concept rotorcraft

#27
20200198781
2020-06-25

DUCT WITH INCREASED THRUST

#28
20200180755
2020-06-11

HYBRID HELICOPTER INCLUDING INCLINED PROPULSION PROPELLERS

#29
20200102073
2020-04-02

Mast Dampener and Collective Pitch for a Rotocraft

#30
20200023962
2020-01-23

VERTICAL TAKE-OFF AND LANDING AIRCRAFT

#31
20200017207
2020-01-16

ROTARY WING AIRCRAFT WITH ENHANCED YAW CAPABILITY

#32
20190352014
2019-11-21

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

#33
20190300166
2019-10-03

Rotorcraft with counter-rotating rotor blades capable of simultaneously generating upward lift and forward thrust

#34
20190270516
2019-09-05

Propulsion Systems for Rotorcraft

#35
20190002095
2019-01-03

INDEPENDENT PROPELLER/MAIN ROTOR SPEED CONTROL FOR X2 TECHNOLOGY

#36
20180327079
2018-11-15

Aircraft vertical stabilizer design

#37
20180327078
2018-11-15

Aircraft horizontal stabilizer design

#38
20180297695
2018-10-18

ROTARY WING AIRCRAFT

#39
20180297689
2018-10-18

Horizontal stabilizer mount for a rotorcraft

#40
20180273166
2018-09-27

Rotary wing vehicle

#41
20180265186
2018-09-20

Vibration Isolation Systems for Advancing Blade Concept Rotorcraft

#42
20180257771
2018-09-13

Directional control for coaxial rotary wing craft

#43
20180202605
2018-07-19

Deaerating assembly

#44
20180194461
2018-07-12

Stopped rotor aircraft

#45
20170349275
2017-12-07

ELEVATOR AND RUDDER CONTROL OF A ROTORCRAFT

#46
20170341740
2017-11-30

Stopped rotor aircraft

#47
20170334552
2017-11-23

Aircraft load and vibration attenuation

#48
20170327210
2017-11-16

Autogyro with a streamlined outer contour

#49
20170315563
2017-11-02

Flight control system for a rotary wing aircraft

#50
20170308101
2017-10-26

AIRCRAFT AND METHOD OF ORIENTING AN AIRFRAME OF AN AIRCRAFT

#51
20170305544
2017-10-26

TURN RADIUS AND BANK ANGLE FOR ROTARY WING AIRCRAFT

#52
20170305543
2017-10-26

SEALED HUB AND SHAFT FAIRING FOR ROTARY WING AIRCRAFT

#53
20170305540
2017-10-26

Noise modes for rotary wing aircraft

#54
20170305539
2017-10-26

Rotorcraft footprint

#55
20170305534
2017-10-26

ROTORCRAFT SYSTEMS TO REDUCE PILOT WORKLOAD

#56
20170297696
2017-10-19

AIRCRAFT MAIN ROTOR DRAG TO AIRFRAME DRAG

#57
20170297692
2017-10-19

ROTARY WING AIRCRAFT

#58
20170297690
2017-10-19

Hub separation in dual rotor rotary wing aircraft

#59
20170291702
2017-10-12

Collective to elevator mixing of a rotary wing aircraft

#60
20170291699
2017-10-12

Dual rotor, rotary wing aircraft

#61
20170283047
2017-10-05

Main rotor rotational speed control for rotorcraft

#62
20170275014
2017-09-28

Rotorcraft rotor and propeller speed

#63
20170275011
2017-09-28

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

#64
20170274994
2017-09-28

Gearbox for a dual rotor, rotary wing aircraft

#65
20170274987
2017-09-28

Single collective stick for a rotary wing aircraft

#66
20170233068
2017-08-17

Lift offset control of a rotary wing aircraft

#67
20170233067
2017-08-17

Independent control for upper and lower rotor of a rotary wing aircraft

#68
20170225797
2017-08-10

AIRCRAFT DESIGN FOR AIR TO AIR REFUELING

#69
20170225771
2017-08-10

Plate member for reducing drag on a fairing of an aircraft

#70
20170217582
2017-08-03

Dual rotor, rotary wing aircraft

#71
20170217581
2017-08-03

BLADE INDEXING OF A ROTARY WING AIRCRAFT

#72
20170210463
2017-07-27

Tip clearance measurement of a rotary wing aircraft

#73
20170210461
2017-07-27

Torque and thrust control of a propeller

#74
20170029093
2017-02-02

Elevator load alleviating control for a rotary wing aircraft

#75
20160327957
2016-11-10

Advanced control relationship for a deflectable stabilizer

#76
20160318605
2016-11-03

Rotor apparatus

#77
20160090176
2016-03-31

Rotorcraft having a stabilizer device

#78
20150367937
2015-12-24

Independent speed and attitude control for a rotary wing aircraft

#79
20150307182
2015-10-29

Advanced pitch stabilizer

#80
20150166175
2015-06-18

Rotorcraft fitted with an anti-torque tail rotor that contributes selectively to providing the rotorcraft with lift and with propulsion in translation

#81
20140326825
2014-11-06

System and a method for controlling pitching stabilizer means of an aircraft

#82
20140091172
2014-04-03

Rotary wing vehicle

#83
20140077026
2014-03-20

Pitch stabilizer and rotary-wing aircraft equipped with such stabilizer

#84
20140070051
2014-03-13

Empennage of a helicopter

#85
20130313355
2013-11-28

Pitching stabilization means and a rotary wing aircraft including such means

#86
20130180403
2013-07-18

Deaerating assembly

#87
20130153706
2013-06-20

Life-saving vehicle

#88
20120153072
2012-06-21

Method of controlling and regulating the deflection angle of a tailplane in a hybrid helicopter

#89
20120138739
2012-06-07

Aircraft provided with a tail plane including means for combating flutter

#90
20120104157
2012-05-03

Rotor driven auxiliary power apparatus and method

#91
20120104156
2012-05-03

Use of auxiliary rudders for yaw control at low speed

#92
20120018570
2012-01-26

Method of minimizing the attitude hump phenomenon and a rotary wing aircraft provided with stabilizer means therefor

#93
20110272519
2011-11-10

Aircraft with helicopter rotor, thrust generator and assymetric wing configuration

#94
20100224720
2010-09-09

Fast hybrid helicopter with long range with longitudinal trim control

#95
20100219286
2010-09-02

Fast hybrid helicopter with long range and an optimized lift rotor

#96
20090321554
2009-12-31

Fast hybrid helicopter with long range and proportional drive to the rotor and the propeller

#97
20090159740
2009-06-25

Coaxial rotor aircraft

#98
20050211823
2005-09-29

Helicopter

#99
20050151001
2005-07-14

Compound helicopter

#100
14618072
2017-04-04

Use of auxiliary rudders for yaw control at low speed