Patents-Review.com
ClassID:

72113 ⎘

B64C27/28 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Compound rotorcraft, i.e. aircraft using in flight the features of both aeroplane and rotorcraft with forward-propulsion propellers pivotable to act as lifting rotors

Recent Application in this class:
#1
20260116573
2026-04-30

POWERED LIFT ENABLE AND DISABLE SWITCH

 #2
20260008542
2026-01-08

FLYING VEHICLE ROTOR ARRANGEMENT

 #3
20250319966
2025-10-16

VERTICAL TAKE-OFF AND LANDING AIRCRAFT WITH AFT ROTOR TILTING

 #4
20250305565
2025-10-02

LINEAR ACTUATOR WITH A SPHERICAL JOINT

 #5
20250183111
2025-06-05

POWER-ELECTRONICS PACKAGING, INTERFACE AND CONFIGURATION

 #6
20250033767
2025-01-30

Rotor deployment mechanism for vertical take-off and landing aircraft

 #7
20240367787
2024-11-07

ONLINE OPTIMIZATION-BASED FLIGHT CONTROL SYSTEM

 #8
20240326988
2024-10-03

SYSTEMS AND METHODS FOR ACTIVE CONTROL OF AIRCRAFT'S CENTER OF GRAVITY

 #9
20240278909
2024-08-22

ROTOR POSITION CONTROL SYSTEM

 #10
20240270378
2024-08-15

CONVERTIBLE AIRCRAFT CAPABLE OF HOVERING

 #11
20240246665
2024-07-25

ELECTRIC TILTROTOR AIRCRAFT WITH FIXED MOTORS

 #12
20240208646
2024-06-27

VERTICAL TAKE-OFF AND LANDING AIRCRAFT WITH AFT ROTOR TILTING

 #13
20240174356
2024-05-30

AIR GUIDANCE DEVICE OF A VERTICAL TAKE-OFF AND LANDING AIRCRAFT, AND VERTICAL TAKE-OFF AND LANDING AIRCRAFT

 #14
20240140598
2024-05-02

Compound vertical takeoff and landing aircraft

 #15
20240124134
2024-04-18

ELECTRIC VTOL AIRCRAFT WITH TILTING PROPELLERS AND LIFTING PROPELLERS

 #16
20240083573
2024-03-14

COMPOUND HELICOPTER

 #17
20240002050
2024-01-04

AERIAL VEHICLE WITH UNCOUPLED HEADING AND ORIENTATION

 #18
20240002047
2024-01-04

Online optimization-based flight control system

 #19
20230286650
2023-09-14

FLYING VEHICLE ROTOR ARRANGEMENT

 #20
20230257114
2023-08-17

AIRPLANE THAT PERFORMS VERTICAL TAKEOFF WITH A POSITIVE PITCH ANGLE

 #21
20230249816
2023-08-10

FLIGHT VEHICLE

 #22
20230249812
2023-08-10

Propulsion unit with foldable propeller blades and method for folding the blades

 #23
20230234729
2023-07-27

UNMANNED AERIAL VEHICLE

 #24
20230234701
2023-07-27

ROTOR FOR AN AIRCRAFT CAPABLE OF HOVERING

 #25
20230234696
2023-07-27

PROPULSION UNIT WITH FOLDABLE PROPELLER BLADES AND METHOD FOR FOLDING THE BLADES

 #26
20230202668
2023-06-29

Dual motor input with overrunning clutch

 #27
20230182887
2023-06-15

Passive proprotor-blade retention systems

 #28
20230137714
2023-05-04

Articulated electric propulsion system and lightweight vertical take-off and landing aircraft using same

 #29
20230129055
2023-04-27

Self-retaining wear-pad leveler

 #30
20230054385
2023-02-23

Vertical takeoff and landing aircraft

 #31
20220380034
2022-12-01

METHODS OF VERTICAL TAKE-OFF/LANDING AND HORIZONTAL STRAIGHT FLIGHT OF AIRCRAFT AND AIRCRAFT FOR IMPLEMENTATION

 #32
20220371728
2022-11-24

Roadable aircraft

 #33
20220315217
2022-10-06

Convertiplane

 #34
20220315213
2022-10-06

Aircraft with pivotally connected wing and rotor

 #35
20220250742
2022-08-11

Vertical take-off and landing aircraft with aft rotor tilting

 #36
20220242557
2022-08-04

Electric tiltrotor aircraft with fixed motors

 #37
20220219816
2022-07-14

COMPACT INTEGRATED MAST AND CARRIER

 #38
20220169385
2022-06-02

Tilt winged multi rotor

 #39
20220111959
2022-04-14

Apparatus with variable pitch and continuous tilt for rotors on an unmanned fixed wing aircraft

 #40
20220106054
2022-04-07

Stowable wing aircraft with dual, fuselage-mounted engines

 #41
20220097838
2022-03-31

Ducted fan assembly for an aircraft

 #42
20220081106
2022-03-17

Single spoke spinner support

 #43
20220073199
2022-03-10

Tiltrotor propulsion system for an aircraft

 #44
20220063800
2022-03-03

Manned Aircraft

 #45
20220041272
2022-02-10

Vertical takeoff and landing aerial vehicle

 #46
20210362847
2021-11-25

Online optimization-based flight control system

 #47
20210354811
2021-11-18

AIRCRAFT

 #48
20210316852
2021-10-14

Centrifugal fans for vertical take-off and landing (VTOL) aircraft propulsion

 #49
20210300527
2021-09-30

Shifting a center of gravity of an aircraft

 #50
20210253259
2021-08-19

Hybrid power systems for aircraft

 #51
20210253234
2021-08-19

Vertical take-off and landing (VTOL) aircraft and related methods

 #52
20210206485
2021-07-08

Articulated Electric Propulsion System With Fully Stowing Blades And Lightweight Vertical Take-Off And Landing Aircraft Using Same

 #53
20210197955
2021-07-01

Spindle to primary duct stator attachment

 #54
20210171191
2021-06-10

Unmanned aerial vehicle with different flight modes

 #55
20210129981
2021-05-06

Vehicle capable of taking off and landing vertically and operating in water, land, air and submarine environments

 #56
20210114720
2021-04-22

Aircraft with rotating ducted fan

 #57
20210107671
2021-04-15

Integral multistage ring gear systems for aircraft

 #58
20210078695
2021-03-18

Stowed blade pneumatic clamp

 #59
20210047029
2021-02-18

Centerline tiltrotor

 #60
20210024213
2021-01-28

Tilt winged multi rotor

 #61
20200401142
2020-12-24

Method of assisting piloting a hybrid rotorcraft provided with a lift rotor and with at least one propeller propulsive rotor that generates thrust

 #62
20200398977
2020-12-24

Tilting closed-wing aircraft

 #63
20200361622
2020-11-19

Dual motor input with overrunning clutch

 #64
20200354046
2020-11-12

Differential Rotor Speed Resonance Avoidance System

 #65
20200331606
2020-10-22

Aerial vehicle with uncoupled heading and orientation

 #66
20200324886
2020-10-15

Hybrid multirotor vehicles and related methods

 #67
20200284192
2020-09-10

Method and apparatus for an engine inlet for a ram-air system with an icing bypass

 #68
20200277051
2020-09-03

Vertical takeoff and landing airframe

 #69
20200239152
2020-07-30

THERMAL MANAGEMENT SYSTEM

 #70
20200198762
2020-06-25

Wing-nacelle splice assemblies for tiltrotor aircraft

 #71
20200166119
2020-05-28

Emergency lubrication system for tiltrotor aircraft

 #72
20200164972
2020-05-28

Vertical take-off and landing multirotor aircraft with at least eight thrust producing units

 #73
20200156780
2020-05-21

Rhombohedral-wing aircraft for vertical take-off and/or landing

 #74
20200150693
2020-05-14

Rotorcraft and method of controlling rotorcraft

 #75
20200148354
2020-05-14

Autonomous thrust vectoring ring wing pod

 #76
20200122827
2020-04-23

Multi-rotor Vehicle with Yaw Control and Autorotation

 #77
20200085988
2020-03-19

Tiltrotor propulsion system for an aircraft

 #78
20200079502
2020-03-12

Articulated electric propulsion system with fully stowing blades and lightweight vertical take-off and landing aircraft using same

 #79
20200062386
2020-02-27

Air, sea and underwater tilt tri-rotor UAV capable of performing vertical take-off and landing

 #80
20200055586
2020-02-20

Active airflow management for tiltrotor hub thermal ventilation

 #81
20200031461
2020-01-30

Online optimization-based flight control system

 #82
20200010184
2020-01-09

Vehicle configuration with motors that rotate between a lifting position and a thrusting position

 #83
20200010182
2020-01-09

PIVOTING WING SYSTEM FOR VTOL AIRCRAFT

 #84
20190375500
2019-12-12

Articulated electric propulsion system with fully stowing blades and lightweight vertical take-off and landing aircraft using same

 #85
20190375495
2019-12-12

ELECTRICAL VERTICAL TAKE-OFF AND LANDING AIRCRAFT

 #86
20190344877
2019-11-14

Stowable wing aircraft with dual, fuselage-mounted engines

 #87
20190300169
2019-10-03

Rotorcraft swashplate actuator control

 #88
20190300153
2019-10-03

PROPELLER CYCLIC CONTROL FOR FLYING WING LIFT AUGMENTATION

 #89
20190293450
2019-09-26

Attitude estimation apparatus, attitude estimation method, and observation system

 #90
20190277353
2019-09-12

Torque path coupling assemblies for tiltrotor aircraft

 #91
20190276142
2019-09-12

Torque path coupling assemblies for tiltrotor aircraft

 #92
20190248480
2019-08-15

MODULAR UNMANNED AERIAL VEHICLE WITH ADJUSTABLE CENTER OF GRAVITY

 #93
20190241260
2019-08-08

ROTARY AIRCRAFT AND METHOD OF USE

 #94
20190225333
2019-07-25

Vertical takeoff and landing airframe

 #95
20190202546
2019-07-04

Online optimization-based flight control system

 #96
20190185140
2019-06-20

Combined fan and motor

 #97
20190176980
2019-06-13

Dual rotor propulsion systems for tiltrotor aircraft

 #98
20190152593
2019-05-23

Aerodyne with vertical-takeoff-and-landing ability

 #99
20190144109
2019-05-16

Extended range quad tiltrotor aircraft

 #100
20190144107
2019-05-16

Segmented duct for tilting proprotors

 #101
20190135426
2019-05-09

SHORT TAKE OFF AND LANDING AERIAL VEHICLE

 #102
20190135423
2019-05-09

Biplane tiltrotor aircraft

 #103
20190135411
2019-05-09

Multirotor aircraft with collective for autorotation

 #104
20190127060
2019-05-02

Flight vehicle

 #105
20190118942
2019-04-25

Tilt Rotor Flap Whirl Stability with Hub Shear Feedback for High Speed Aircraft

 #106
20190112028
2019-04-18

Wing-nacelle splice assemblies for tiltrotor aircraft

 #107
20190106207
2019-04-11

Aerial vehicle having incline-controllable wings

 #108
20190100322
2019-04-04

Hybrid power systems for aircraft

 #109
20190100303
2019-04-04

Tiltrotor aircraft having a downwardly tiltable aft rotor

 #110
20190100297
2019-04-04

Wing-fuselage integrated airframe beams for tiltrotor aircraft

 #111
20190031336
2019-01-31

Automated configuration of mission specific aircraft

 #112
20190031335
2019-01-31

Man portable aircraft system for rapid in-situ assembly

 #113
20190023388
2019-01-24

Proprotor flapping control systems for tiltrotor aircraft

 #114
20190016451
2019-01-17

Variable-speed drive system for tiltrotor with fixed engine and rotating proprotor

 #115
20180370625
2018-12-27

Convertible rotor aircraft

 #116
20180362154
2018-12-20

Retractable and deployable flight rotor system

 #117
20180354615
2018-12-13

X-tiltwing aircraft

 #118
20180334241
2018-11-22

Combined fan and motor

 #119
20180281936
2018-10-04

Helicopter with wing augmented lift

 #120
20180274563
2018-09-27

Aircraft hydraulic systems having shared components

 #121
20180273169
2018-09-27

Tiltrotor aircraft having rotatable wing extensions

 #122
20180265189
2018-09-20

Multirotor aircraft with an airframe and a thrust producing units arrangement

 #123
20180237136
2018-08-23

Tiltrotor aircraft having vertical lift and hover augmentation

 #124
20180215465
2018-08-02

Rotatable thruster aircraft with separate lift thrusters

 #125
20180178909
2018-06-28

Gearbox casing, a gearbox, and an aircraft

 #126
20180155019
2018-06-07

Tilt-prop aircraft

 #127
20180141654
2018-05-24

Proprotor systems for tiltrotor aircraft

 #128
20180065743
2018-03-08

Tiltrotor propulsion system for an aircraft

 #129
20180057158
2018-03-01

Rotorcraft having a rotary wing and an orientable propeller, and a method applied by the rotorcraft

 #130
20180057157
2018-03-01

Tilting ducted fan aircraft generating a pitch control moment

 #131
20180037317
2018-02-08

Multicopter

 #132
20180002011
2018-01-04

Aircraft with selectively attachable passenger pod assembly

 #133
20170349272
2017-12-07

TRICOPTER-TYPE ROTARY WING DRONE

 #134
20170313410
2017-11-02

Aerial vehicle with uncoupled heading and orientation

 #135
20170241474
2017-08-24

System and method of rotating rotor blades from a distance

 #136
20170240274
2017-08-24

Propulsion system

 #137
20170217595
2017-08-03

Engine mount assemblies for aircraft

 #138
20170144747
2017-05-25

Adaptive flight control system for the yaw and thrust flight controls of a hybrid helicopter

 #139
20170101175
2017-04-13

Vehicle configuration with motors that rotate between a lifting position and a thrusting position

 #140
20160332727
2016-11-17

Aircraft with thrust vectoring tail

 #141
20160311530
2016-10-27

Aircraft with a plurality of engines driving a common driveshaft

 #142
20160311528
2016-10-27

Multi-rotor vehicle with yaw control and autorotation

 #143
20160304194
2016-10-20

Articulated electric propulsion system with fully stowing blades and lightweight vertical take-off and landing aircraft using same

 #144
20160272312
2016-09-22

Tiltrotor unmanned aerial vehicle

 #145
20160244157
2016-08-25

Vehicle configuration with motors that rotate between a lifting position and a thrusting position

 #146
20160214710
2016-07-28

VTOL aircraft

 #147
20160209290
2016-07-21

Dynamic center of gravity determination

 #148
20160167776
2016-06-16

Modular flight vehicle

 #149
20160031555
2016-02-04

Aerodynamically efficient lightweight vertical take-off and landing aircraft with pivoting rotors and stowing rotor blades

 #150
20160023756
2016-01-28

Direct orientation vector rotor

 #151
20160001878
2016-01-07

EASY LANDING DRONE

 #152
20150360774
2015-12-17

Rotary pylon conversion actuator for tiltrotor aircraft

 #153
20150298800
2015-10-22

Multi-stage tilting and multi-rotor flying car

 #154
20150274289
2015-10-01

VERTICALLY LANDING AIRCRAFT

 #155
20150232175
2015-08-20

Broad goods composite yoke for rotor system

 #156
20150115096
2015-04-30

Convertible compounded rotorcraft

 #157
20150053826
2015-02-26

Vertical take-off and landing aircraft

 #158
20150048213
2015-02-19

Fixed engine and rotating proprotor arrangement for a tiltrotor aircraft

 #159
20150034772
2015-02-05

Composite flexure for tiltrotor rotor system

 #160
20150001336
2015-01-01

Device for assisting in piloting hybrid helicopter, hybrid helicopter provided with such device, and method implemented by such device

 #161
20140191088
2014-07-10

Aircraft with integrated lift and propulsion system

 #162
20140169963
2014-06-19

Direct orientation vector rotor

 #163
20140084114
2014-03-27

VTOL Aircraft with Propeller tiltable around two Axes and a retractable Rotor

 #164
20140077039
2014-03-20

Heated screen for air intake of aircraft engines

 #165
20140061368
2014-03-06

Vertical/short take-off and landing passenger aircraft

 #166
20140060004
2014-03-06

TILTROTOR VECTORED EXHAUST SYSTEM

 #167
20140034774
2014-02-06

Fast, long-range aircraft

 #168
20130153708
2013-06-20

Aft-loading aircraft with twin T-tail assembly

 #169
20130105625
2013-05-02

Aircraft provided with a buoyancy system for a rotary element

 #170
20120292456
2012-11-22

Method and apparatus for in-flight blade folding

 #171
20120261523
2012-10-18

Aircraft with wings and movable propellers

 #172
20120234968
2012-09-20

Aircraft with freewheeling engine

 #173
20120104157
2012-05-03

Rotor driven auxiliary power apparatus and method

 #174
20120068007
2012-03-22

Rotary wing aircraft provided with propulsion means, and a method applied by said aircraft

 #175
20110036955
2011-02-17

Aircraft with integrated lift and propulsion system

 #176
20100327123
2010-12-30

Rotorcraft with variable incident wing

 #177
20100312421
2010-12-09

Device for assisting in piloting a hybrid helicopter, a hybrid helicopter provided with such a device, and a method implemented by said device

 #178
20100193644
2010-08-05

Aircraft with integrated lift and propulsion system

 #179
20100171000
2010-07-08

Tandem powered tilt rotor aircraft

 #180
20100078523
2010-04-01

Tandem powered power tilting tilt rotor aircraft

 #181
20100012775
2010-01-21

Torsionally de-coupled engine mount system

 #182
20090014599
2009-01-15

Convertible aerial vehicle with contra-rotating wing/rotors and twin tilting wing and propeller units

 #183
20090014580
2009-01-15

Vectored thruster augmented aircraft

 #184
20090008510
2009-01-08

Aircraft having the ability for hovering flight, fast forward flight, gliding flight, short take-off, short landing, vertical take-off and vertical landing

 #185
20090008499
2009-01-08

Modular flying vehicle

 #186
20080230656
2008-09-25

Aircraft wings having hinged vanes and aircraft having said wings

 #187
20070034735
2007-02-15

Tandem powered power tilting aircraft

 #188
20060198732
2006-09-07

Non-articulated rotor and rotorcraft comprising a rotor of this type

 #189
20060157616
2006-07-20

Tandem powered power tilting aircraft

 #190
20060151665
2006-07-13

Torsionally de-coupled engine mount system

 #191
20060006279
2006-01-12

Control system for rotorcraft for preventing the vortex ring state

 #192
20050230520
2005-10-20

Tandem powered power tilting aircraft

 #193
20050127238
2005-06-16

Avia tilting-rotor convertiplane

 #194
20050109874
2005-05-26

Vertical lift flying craft

 #195
20050045762
2005-03-03

High performance VTOL convertiplanes

 #196
20050040281
2005-02-24

Tilting transmission gearbox comprising a pivoting connection with plain bearings

 #197
20050001092
2005-01-06

Control system for rotorcraft for preventing the vortex ring state

 #198
17589032
2023-08-29

Convertible unmanned vehicle

 #199
17360240
2022-12-06

Vertical take-off and landing (VTOL) tilt-wing passenger aircraft