Patents-Review.com
ClassID:

72171 ⎘

B64C2027/8236 - 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 including pusher propellers

Recent Application in this class:
#1
20250382052
2025-12-18

TRANSMISSION SYSTEM

 #2
20250074583
2025-03-06

PROPULSOR EXTERNAL HYDRAULIC CONTROL SYSTEM

 #3
20240417069
2024-12-19

Method For Flying VTOL Aircraft With Forward Canted Rotors

 #4
20240391585
2024-11-28

Aerial vehicle

 #5
20240208644
2024-06-27

Method for flying VTOL aircraft with forward canted rotors

 #6
20240101252
2024-03-28

VTOL aircraft using fixed forward canted rotors

 #7
20240067332
2024-02-29

Rotary shaft for an aircraft

 #8
20230294828
2023-09-21

Rotary wing vehicle

 #9
20230271699
2023-08-31

Aerial vehicle

 #10
20230234706
2023-07-27

ROTARY WING VEHICLE

 #11
20230192284
2023-06-22

MAST DAMPENER FOR A ROTORCRAFT

 #12
20230136833
2023-05-04

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

 #13
20230101964
2023-03-30

Method for hovering an aircraft with respect to an axis with a controllable pitch angle

 #14
20230024261
2023-01-26

Rotary wing aircraft with a shrouded tail propeller

 #15
20220397916
2022-12-15

Multivariable airspeed and flight path angle control of a co-axial rotary wing aircraft with a pusher-propeller

 #16
20220258858
2022-08-18

Rotary wing aircraft with a shrouded tail propeller

 #17
20220204157
2022-06-30

Hybrid gyrodyne aircraft

 #18
20220185466
2022-06-16

Rotary wing aircraft with an asymmetrical front section

 #19
20220185465
2022-06-16

Rotary wing aircraft with an asymmetrical rear section

 #20
20220097834
2022-03-31

Hybrid gyrodyne aircraft

 #21
20220081108
2022-03-17

VTOL aircraft using rotors to simulate rigid wing dynamics

 #22
20220080842
2022-03-17

Rotor break effect by using electric distributed anti-torque generators and opposing electric motor thrust to slow a main rotor

 #23
20220055742
2022-02-24

Hybrid gyrodyne aircraft

 #24
20220055741
2022-02-24

Hybrid gyrodyne aircraft

 #25
20220043465
2022-02-10

Hybrid gyrodyne aircraft

 #26
20220041271
2022-02-10

VTOL aircraft using fixed forward canted rotors to simulate rigid wing dynamics

 #27
20210362843
2021-11-25

Turbine engine secondary ejector system

 #28
20210339851
2021-11-04

Power display for compound aircraft using shared engine torque

 #29
20210323659
2021-10-21

COMPOUND ROTOR AIRCRAFT

 #30
20210291974
2021-09-23

Method of protecting a margin for controlling the yaw attitude of a hybrid helicopter, and a hybrid helicopter

 #31
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

 #32
20210284331
2021-09-16

Method of automatically adjusting lift provided for a hybrid rotorcraft, and an associated hybrid rotorcraft

 #33
20210163127
2021-06-03

Assembly and method for helicopter anti-torque

 #34
20210163125
2021-06-03

Hybrid rotorcraft having at least one pusher or puller propeller, and an associated piloting method

 #35
20210139140
2021-05-13

Rotary wing vehicle

 #36
20210122460
2021-04-29

Rotorcraft having propeller generated power during autorotations

 #37
20210061444
2021-03-04

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

 #38
20210001979
2021-01-07

VTOL AIRCRAFT USING FIXED FORWARD CANTED ROTORS TO SIMULATE RIGID WING DYNAMICS

 #39
20200398976
2020-12-24

Mount systems for pylon assemblies with coaxial rotors

 #40
20200385107
2020-12-10

Low drag sail fairing for coaxial rotor

 #41
20200385106
2020-12-10

AUTOGYRO

 #42
20200339252
2020-10-29

ELECTRICALLY-POWERED SWIVELING TAIL ROTOR SYSTEMS

 #43
20200331600
2020-10-22

Anti-torque and propulsion system for rotorcraft

 #44
20200290734
2020-09-17

Slewing mechanical power transmissions for rotorcraft

 #45
20200283133
2020-09-10

Autogyro having an instrument panel

 #46
20200262549
2020-08-20

Vibration isolation systems for advancing blade concept rotorcraft

 #47
20200223540
2020-07-16

Modal tailboom flight control systems for compound helicopters

 #48
20200180755
2020-06-11

HYBRID HELICOPTER INCLUDING INCLINED PROPULSION PROPELLERS

 #49
20200108919
2020-04-09

Quiet Redundant Rotorcraft

 #50
20200102073
2020-04-02

Mast Dampener and Collective Pitch for a Rotocraft

 #51
20200070996
2020-03-05

Pusher rotorcraft drivetrain

 #52
20200023956
2020-01-23

Pitch control system

 #53
20200017207
2020-01-16

ROTARY WING AIRCRAFT WITH ENHANCED YAW CAPABILITY

 #54
20190352014
2019-11-21

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

 #55
20190332126
2019-10-31

Propulsor trim prediction for aircraft

 #56
20190332125
2019-10-31

Pitch and thrust control for tilt-rotor aircraft

 #57
20190332124
2019-10-31

Pitch and thrust control for compound aircraft

 #58
20190329879
2019-10-31

Pitch trim prediction for aircraft

 #59
20190233094
2019-08-01

Control system for a stopped rotor aircraft

 #60
20190217949
2019-07-18

ROTORCRAFT CONTROL SYSTEMS

 #61
20190112039
2019-04-18

Multirotor aircraft with an airframe and at least one wing

 #62
20190071173
2019-03-07

Variable directional thrust for helicopter tail anti-torque system

 #63
20190055016
2019-02-21

Hybrid powered unmanned aircraft system

 #64
20190039726
2019-02-07

Rotor span-balance pocket

 #65
20190023393
2019-01-24

Aircraft

 #66
20190023385
2019-01-24

Electric motor-driven compound aircraft

 #67
20190009895
2019-01-10

MULTI-COPTER LIFT BODY AIRCRAFT WITH TILT ROTORS

 #68
20190002095
2019-01-03

INDEPENDENT PROPELLER/MAIN ROTOR SPEED CONTROL FOR X2 TECHNOLOGY

 #69
20180346135
2018-12-06

Rotor brake effect by using electric distributed anti-torque generators and opposing electric motor thrust to slow a main rotor

 #70
20180305038
2018-10-25

Touchdown control system

 #71
20180290740
2018-10-11

MONO-CYCLIC SWASHPLATE

 #72
20180290736
2018-10-11

VTOL aircraft using rotors to simulate rigid wing aero dynamics

 #73
20180281932
2018-10-04

Active flow control system

 #74
20180273166
2018-09-27

Rotary wing vehicle

 #75
20180265186
2018-09-20

Vibration Isolation Systems for Advancing Blade Concept Rotorcraft

 #76
20180259977
2018-09-13

Natural language mission planning and interface

 #77
20180257771
2018-09-13

Directional control for coaxial rotary wing craft

 #78
20180244396
2018-08-30

Drive system arrangement for rotorcraft

 #79
20180237132
2018-08-23

VERTICAL TAKE-OFF AND LANDING FIXED-WING AIRCRAFT AND THE FLIGHT CONTROL METHOD THEREOF

 #80
20180215463
2018-08-02

Multi-speed gearbox for tail rotor of a compound helicopter

 #81
20180202605
2018-07-19

Deaerating assembly

 #82
20180194461
2018-07-12

Stopped rotor aircraft

 #83
20180178909
2018-06-28

Gearbox casing, a gearbox, and an aircraft

 #84
20180148165
2018-05-31

ROTOR STATE FEEDBACK SYSTEM

 #85
20180141646
2018-05-24

Propulsor hub weight element and balancing method

 #86
20180111680
2018-04-26

Electric cold flow tipjet rotorcraft

 #87
20180086443
2018-03-29

Variable ratio gearbox for a rotary wing aircraft tail rotor

 #88
20170351270
2017-12-07

Attitude-coupled targeting system for rotary wing aircraft

 #89
20170349275
2017-12-07

ELEVATOR AND RUDDER CONTROL OF A ROTORCRAFT

 #90
20170349273
2017-12-07

Variable directional thrust for helicopter tail anti-torque system

 #91
20170341741
2017-11-30

Control system for a stopped rotor aircraft

 #92
20170341740
2017-11-30

Stopped rotor aircraft

 #93
20170341733
2017-11-30

ROTOR HEAD FOR PROP-ROTOR

 #94
20170327215
2017-11-16

Directional stiffness bearing sleeve assembly for rotor systems

 #95
20170315563
2017-11-02

Flight control system for a rotary wing aircraft

 #96
20170308101
2017-10-26

AIRCRAFT AND METHOD OF ORIENTING AN AIRFRAME OF AN AIRCRAFT

 #97
20170305544
2017-10-26

TURN RADIUS AND BANK ANGLE FOR ROTARY WING AIRCRAFT

 #98
20170305543
2017-10-26

SEALED HUB AND SHAFT FAIRING FOR ROTARY WING AIRCRAFT

 #99
20170305540
2017-10-26

Noise modes for rotary wing aircraft

 #100
20170305539
2017-10-26

Rotorcraft footprint

 #101
20170305534
2017-10-26

ROTORCRAFT SYSTEMS TO REDUCE PILOT WORKLOAD

 #102
20170297697
2017-10-19

Rotorcraft including auxiliary propulsor positioned to ingest boundary layer flow

 #103
20170297696
2017-10-19

AIRCRAFT MAIN ROTOR DRAG TO AIRFRAME DRAG

 #104
20170297692
2017-10-19

ROTARY WING AIRCRAFT

 #105
20170297690
2017-10-19

Hub separation in dual rotor rotary wing aircraft

 #106
20170291702
2017-10-12

Collective to elevator mixing of a rotary wing aircraft

 #107
20170291699
2017-10-12

Dual rotor, rotary wing aircraft

 #108
20170283047
2017-10-05

Main rotor rotational speed control for rotorcraft

 #109
20170283046
2017-10-05

SEALED HUB AND SHAFT FAIRING FOR ROTARY WING AIRCRAFT

 #110
20170283045
2017-10-05

TRANSLATION THRUST SYSTEM ENGAGEMENT AND DISENGAGMENT FOR ROTARY WING AIRCRAFT

 #111
20170275014
2017-09-28

Rotorcraft rotor and propeller speed

 #112
20170275011
2017-09-28

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

 #113
20170274994
2017-09-28

Gearbox for a dual rotor, rotary wing aircraft

 #114
20170274987
2017-09-28

Single collective stick for a rotary wing aircraft

 #115
20170267338
2017-09-21

ACOUSTIC SIGNATURE VARIATION OF AIRCRAFT UTILIZING A CLUTCH

 #116
20170233068
2017-08-17

Lift offset control of a rotary wing aircraft

 #117
20170233067
2017-08-17

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

 #118
20170233066
2017-08-17

Rotary wing aircraft pitch control system

 #119
20170225797
2017-08-10

AIRCRAFT DESIGN FOR AIR TO AIR REFUELING

 #120
20170225778
2017-08-10

Rotary or fixed wing aircraft with thrust vectoring tail

 #121
20170225776
2017-08-10

Pitch control system for an aircraft

 #122
20170225775
2017-08-10

ROTORCRAFT OPERATIONAL ALTITUDE AND AIRSPEED

 #123
20170225771
2017-08-10

Plate member for reducing drag on a fairing of an aircraft

 #124
20170220048
2017-08-03

ROTARY WING AIRCRAFT AND METHOD OF CONTROLLING A ROTARY WING AIRCRAFT

 #125
20170217582
2017-08-03

Dual rotor, rotary wing aircraft

 #126
20170217581
2017-08-03

BLADE INDEXING OF A ROTARY WING AIRCRAFT

 #127
20170217575
2017-08-03

Active vibration control of a rotorcraft

 #128
20170210480
2017-07-27

Rotor systems for rotorcraft

 #129
20170210463
2017-07-27

Tip clearance measurement of a rotary wing aircraft

 #130
20170210461
2017-07-27

Torque and thrust control of a propeller

 #131
20170197709
2017-07-13

Compound rotorcraft

 #132
20170190417
2017-07-06

Rotation of disengaged rotor

 #133
20170190415
2017-07-06

Transmission for coaxial multi-rotor system

 #134
20170183090
2017-06-29

Propeller rotor for a vertical take off and landing aircraft

 #135
20170174326
2017-06-22

VORTEX GENERATORS AND METHOD OF CREATING VORTICES ON AN AIRCRAFT

 #136
20170166305
2017-06-15

ROTARY WING VEHICLE

 #137
20170113793
2017-04-27

Compound aircraft having an additional anti-torque device

 #138
20170096213
2017-04-06

Structurally efficient pin wrap

 #139
20170029093
2017-02-02

Elevator load alleviating control for a rotary wing aircraft

 #140
20160318605
2016-11-03

Rotor apparatus

 #141
20160224030
2016-08-04

Lift offset management and control systems for coaxial rotorcraft

 #142
20160221675
2016-08-04

Omni-directional thrust vectoring propulsor

 #143
20160208864
2016-07-21

Multi-plate clutch

 #144
20160207618
2016-07-21

Propeller gearbox oil cooler for a rotary wing aircract

 #145
20160207610
2016-07-21

Aircraft with drive element coupled to gearbox housing exterior

 #146
20160200431
2016-07-14

Composite stiffened rigid propeller shaped main rotor hub

 #147
20160159476
2016-06-09

Guide vanes for a pusher propeller for rotary wing aircraft

 #148
20160129988
2016-05-12

Aircraft having keel tube with structure that reduces noise emissions

 #149
20160083076
2016-03-24

Automatic propeller torque protection system

 #150
20160052626
2016-02-25

Hybrid gyrodyne aircraft employing a managed autorotation flight control system

 #151
20150367937
2015-12-24

Independent speed and attitude control for a rotary wing aircraft

 #152
20150298818
2015-10-22

Rotor index sensor system

 #153
20150210378
2015-07-30

Rotorcraft with a fuselage and at least one main rotor

 #154
20150152733
2015-06-04

Boundary layer ingesting blade

 #155
20150053815
2015-02-26

Automated rotating tail rotor control

 #156
20150028597
2015-01-29

Swashplateless coaxial rotary wing aircraft

 #157
20140217231
2014-08-07

Rotary wing aircraft having collocated exhaust duct and propeller shaft

 #158
20140215999
2014-08-07

AFT exhaust system for rotary wing aircraft

 #159
20140154084
2014-06-05

Non-uniform blade distribution for rotary wing aircraft

 #160
20140096501
2014-04-10

Upturned exhaust system for rotary wing aircraft

 #161
20140091172
2014-04-03

Rotary wing vehicle

 #162
20140061366
2014-03-06

Compound helicopter with tail booms

 #163
20130327879
2013-12-12

High speed compound rotary wing aircraft

 #164
20130210329
2013-08-15

Autarkic monument in an aircraft pressure cabin with decentralized operating medium supply and efficient energy conversion

 #165
20130180403
2013-07-18

Deaerating assembly

 #166
20130134256
2013-05-30

Anti-torque device with longitudinal thrust for a rotorcraft

 #167
20120318911
2012-12-20

Anti-torque nozzle system with internal sleeve valve for a rotorcraft

 #168
20120318910
2012-12-20

Propulsive anti-torque nozzle system with external rotating sleeve for a rotorcraft

 #169
20120305699
2012-12-06

Front electric rotor helicopter

 #170
20120256042
2012-10-11

Helicopter with cycloidal rotor system

 #171
20120229292
2012-09-13

LIGHTING APPARATUS FOR A BEACON SYSTEM

 #172
20120188761
2012-07-26

High brightness light emitting diode luminaire

 #173
20120098455
2012-04-26

Lighting device having a plurality of light sources

 #174
20120019164
2012-01-26

Calibration method for LED lighting systems

 #175
20120013252
2012-01-19

AIRCRAFT LED WASHLIGHT SYSTEM AND METHOD FOR CONTROLLING SAME

 #176
20120012693
2012-01-19

Method and an aircraft provided with a swiveling tail rotor

 #177
20110147511
2011-06-23

ROTATING WING AIRCRAFT WITH TIP-DRIVEN ROTOR AND ROTOR-GUIDE RING

 #178
20110139924
2011-06-16

TAIL BOOM

 #179
20110019430
2011-01-27

Aircraft navigation light

 #180
20100324758
2010-12-23

Compound aircraft control system and method

 #181
20100264258
2010-10-21

Magnetic de-rotation system for a shaft fairing system

 #182
20100189285
2010-07-29

Reading lamp

 #183
20100154435
2010-06-24

Turbine engine having two off-axis spools with valving-enabled modulation between high and low power modes

 #184
20100127114
2010-05-27

HELICOPTER

 #185
20100123040
2010-05-20

HELIUM-COOLED LEDS IN A FLOATING ILLUMINATION SYSTEM

 #186
20100110706
2010-05-06

Aircraft cabin lighting system and kit therefor

 #187
20100096989
2010-04-22

Navigation light device for an aircraft, in particular a military airplane

 #188
20100065677
2010-03-18

Hybrid helicopter that is fast and has long range

 #189
20100044498
2010-02-25

Variable speed transmission for a rotary wing aircraft

 #190
20100020556
2010-01-28

Integrated position light overlap baffles

 #191
20100019689
2010-01-28

LED lighting system

 #192
20100012769
2010-01-21

Aerodynamic integration of a payload container with a vertical take-off and landing aircraft

 #193
20100001120
2010-01-07

High-speed aircraft with vertical lift and self-revolving ability

 #194
20090303084
2009-12-10

METHOD AND APPARATUS FOR PROVIDING VISIBLE INDICATION OF ELEVATED AIRPORT LIGHT COLOR

 #195
20090220341
2009-09-03

Upper rotor control system for a counter-rotating rotor system

 #196
20090216392
2009-08-27

VECTORED THRUSTER AUGMENTED AIRCRAFT

 #197
20090159740
2009-06-25

Coaxial rotor aircraft

 #198
20090048722
2009-02-19

Compound aircraft control system and method

 #199
20080315035
2008-12-25

Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft

 #200
20080237392
2008-10-02

Compound aircraft control system and method

 #201
20080219012
2008-09-11

Illumination in the area of aircraft cabins

 #202
20080173752
2008-07-24

Variable speed transmission for a rotary wing aircraft

 #203
20080169379
2008-07-17

Translational thrust system for a rotary wing aircraft

 #204
20080093500
2008-04-24

Propulsive anti-torque system for rotorcraft

 #205
20080056897
2008-03-06

Counter rotating rotor head

 #206
20070125907
2007-06-07

Variable speed gearbox with an independently variable speed tail rotor system for a rotary wing aircraft

 #207
20070110582
2007-05-17

Rotor blade twist distribution for a high speed rotary-wing aircraft

 #208
20060269418
2006-11-30

Rotor blade for a high speed rotary-wing aircraft

 #209
20060269414
2006-11-30

Variable speed transmission for a rotary wing aircraft

 #210
20060269413
2006-11-30

Rotor drive and control system for a high speed rotary wing aircraft

 #211
20060212182
2006-09-21

Low cost flight instrumentation system

 #212
20060158892
2006-07-20

Multicolored LED vehicle interior light

 #213
20060119839
2006-06-08

Optical device for indicating the glide angle for aircraft

 #214
20060092649
2006-05-04

Vehicle interior courtesy lamp assembly

 #215
20060060693
2006-03-23

Rotating wing aircraft with tip-driven rotor and rotor guide-ring

 #216
20050237766
2005-10-27

LED-tube hybrid lighting arrangement

 #217
20050151001
2005-07-14

Compound helicopter

 #218
20050104740
2005-05-19

Onboard equipment for aircraft and the like

 #219
19004227
2026-02-24

VTOL aircraft using fixed forward canted rotors

 #220
17701472
2024-01-09

Low-drag tail rotor for a compound aircraft

 #221
16668551
2020-10-13

Deployable propeller blades for aerial vehicles

 #222
15957733
2019-05-21

Control system for a stopped rotor aircraft

 #223
15680887
2019-12-03

Deployable propeller blades for aerial vehicles

 #224
15589409
2018-08-21

Multi-copter lift body aircraft with tail pusher