Patents-Review.com
ClassID:

72103 ⎘

B64C27/10 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Helicopters with two or more rotors arranged coaxially

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

Control of Vertical Take Off and Landing Aircraft

 #2
20260109458
2026-04-23

COMPACT PROPELLER BLADE RETENTION ASSEMBLY

 #3
20250388316
2025-12-25

ULTRA-HIGH-SPEED HELICOPTER WITH STOWED SINGLE-BLADE COAXIAL ROTORS

 #4
20250383008
2025-12-18

ACTIVE CREW SEAT VIBRATION CONTROL

 #5
20250319965
2025-10-16

LOW DRAG AIRFOIL

 #6
20250296678
2025-09-25

TUNABLE MASS DAMPER ASSEMBLY FOR A ROTOR BLADE

 #7
20250214699
2025-07-03

SHAFT ASSEMBLY FOR SPLIT TORQUE GEAR BOX

 #8
20250162710
2025-05-22

CONTRA-ROTATING COAXIAL ROTOR ASSEMBLY

 #9
20250074583
2025-03-06

PROPULSOR EXTERNAL HYDRAULIC CONTROL SYSTEM

 #10
20240343389
2024-10-17

HELICOPTER ROTOR SYSTEM

 #11
20240246664
2024-07-25

Vibration isolation systems for compound helicopters

 #12
20240158073
2024-05-16

SYSTEM, ASSEMBLIES AND METHODS FOR MECHANICAL-THRUST POWER CONVERSION MULTIFANS

 #13
20240140598
2024-05-02

Compound vertical takeoff and landing aircraft

 #14
20240092482
2024-03-21

Method for transmitting power based on aerodynamic deceleration, structure and application thereof

 #15
20240067332
2024-02-29

Rotary shaft for an aircraft

 #16
20230399098
2023-12-14

DRIVE UNIT FOR A ROTARY-WING AIRCRAFT, AND ROTARY-WING AIRCRAFT

 #17
20230391448
2023-12-07

Aerodynamic rotary interface

 #18
20230373319
2023-11-23

Power electronics converter

 #19
20230365254
2023-11-16

ROTOR WING AIRCRAFT WITH PROPULSION APPARATUS ON ROTATING POLE

 #20
20230322375
2023-10-12

Helicopter rotor system

 #21
20230312094
2023-10-05

CARGO HOOK IMPLEMENTING AN AUTOMATIC LOCKING KEEPER CONFIGURED TO INCREASE SAFETY, REDUCE A LIKELIHOOD OF DYNAMIC ROLLOUT, AND/OR THE LIKE

 #22
20230303239
2023-09-28

APPARATUS AND METHOD FOR FLUID MANIPULATION

 #23
20230294828
2023-09-21

Rotary wing vehicle

 #24
20230294825
2023-09-21

Electric vertical take off and landing vehicle

 #25
20230278702
2023-09-07

Air vehicle with double-layer rotor wing structure

 #26
20230249811
2023-08-10

COMPACT PROPELLER BLADE RETENTION ASSEMBLY

 #27
20230234706
2023-07-27

ROTARY WING VEHICLE

 #28
20230192280
2023-06-22

Rotor assembly connectable to rotor hub and having pitch control

 #29
20230167838
2023-06-01

APPARATUS AND METHOD FOR FLUID MANIPULATION

 #30
20230159159
2023-05-25

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

 #31
20230150657
2023-05-18

MANNED AND UNMANNED AIRCRAFT

 #32
20230140370
2023-05-04

VTOL rotorcraft with annular contra-rotating rotary wings and auxiliary propulsor

 #33
20230136833
2023-05-04

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

 #34
20230098878
2023-03-30

LANDING GEAR FEEDBACK CONTROL SYSTEM FOR AN AIRCRAFT

 #35
20230093243
2023-03-23

Coaxial rotor systems for VTOL aircraft

 #36
20230084519
2023-03-16

AERODYNAMIC OPTIMIZATION OF THE SIZING AND BLADE DESIGNS OF COROTATING COAXIAL ROTORS

 #37
20230060888
2023-03-02

SELF-RIGHTING AERONAUTICAL VEHICLE AND METHOD OF USE

 #38
20220402600
2022-12-22

Real time rotor head moment measurement, control, and limiting

 #39
20220397916
2022-12-15

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

 #40
20220388643
2022-12-08

Swashplate assembly for a rotor system

 #41
20220340270
2022-10-27

Rotor system

 #42
20220332409
2022-10-20

TUNABLE MASS DAMPER ASSEMBLY FOR A ROTOR BLADE

 #43
20220221864
2022-07-14

System and a method for controlling rotorcraft rotors

 #44
20220219820
2022-07-14

Unmanned flying device

 #45
20220219814
2022-07-14

Rotary-wing, hover-capable aircraft and methods

 #46
20220204157
2022-06-30

Hybrid gyrodyne aircraft

 #47
20220194568
2022-06-23

Rotating blade aerodyne propulsion device with vertical take-off and landing, and aerodyne comprising at least one such propulsion device

 #48
20220135215
2022-05-05

ZONED CONTACT BUSHING

 #49
20220111952
2022-04-14

Contra-rotating rotors with dissimilar numbers of blades

 #50
20220097834
2022-03-31

Hybrid gyrodyne aircraft

 #51
20220073195
2022-03-10

DRIVE APPARATUS AND METHODS FOR USE

 #52
20220055742
2022-02-24

Hybrid gyrodyne aircraft

 #53
20220055741
2022-02-24

Hybrid gyrodyne aircraft

 #54
20220043465
2022-02-10

Hybrid gyrodyne aircraft

 #55
20220017216
2022-01-20

Main rotor blade using integral metallic center block strap assembly

 #56
20210403148
2021-12-30

Vibration isolation systems for compound helicopters

 #57
20210362843
2021-11-25

Turbine engine secondary ejector system

 #58
20210339851
2021-11-04

Power display for compound aircraft using shared engine torque

 #59
20210339850
2021-11-04

A PROPULSION SYSTEM FOR A MULTIROTOR AIRCRAFT

 #60
20210323661
2021-10-21

Coaxial helicopter and control method thereof

 #61
20210316849
2021-10-14

Rotor centrifugal force retention device

 #62
20210309360
2021-10-07

APPARATUS FOR AERIAL TRANSPORTATION OF PAYLOAD

 #63
20210291972
2021-09-23

Coaxial split torque gearbox with sequential load distribution

 #64
20210291971
2021-09-23

Coaxial rotor systems for VTOL aircraft

 #65
20210284330
2021-09-16

Three-steering gear direct-drive coaxial rotor system and flight control method for controlling coaxtal rotor aircraft

 #66
20210276690
2021-09-09

Pivoting sail fairing system and rotary wing aircraft including the same

 #67
20210253261
2021-08-19

AIRCRAFT AND CONTROL METHOD FOR SAME

 #68
20210253232
2021-08-19

Hover-capable aircraft

 #69
20210245870
2021-08-12

System, assemblies and methods for mechanical-thrust power conversion multifans

 #70
20210229802
2021-07-29

Fail-operational VTOL aircraft

 #71
20210214077
2021-07-15

Eccentrically adjusted rotating scissor pitch control link

 #72
20210147076
2021-05-20

A DRIVE MECHANISM

 #73
20210139140
2021-05-13

Rotary wing vehicle

 #74
20210139138
2021-05-13

METHODS AND SYSTEMS FOR REDUCING ROTOR ACOUSTICS OF AN AIRCRAFT

 #75
20210101677
2021-04-08

Differential blade geometry for rotor assemblies

 #76
20210070429
2021-03-11

Free propeller assembly structure and aircraft structure having the same

 #77
20210047024
2021-02-18

Hingeless helicopter rotor with high stiffness and low drag configuration

 #78
20210024206
2021-01-28

Collapsible flying device

 #79
20200398976
2020-12-24

Mount systems for pylon assemblies with coaxial rotors

 #80
20200391848
2020-12-17

Double-ring rotary wing spherical cabin aircraft

 #81
20200385117
2020-12-10

FUEL-ELECTRIC HYBRID MULTI-AXIS ROTOR-TYPE UNMANNED AERIAL VEHICLE

 #82
20200385109
2020-12-10

Low drag high capacity pitch bearing for rigid rotor aircraft

 #83
20200385107
2020-12-10

Low drag sail fairing for coaxial rotor

 #84
20200377209
2020-12-03

Folding horn concept for rigid rotor blade fold

 #85
20200377208
2020-12-03

Rotor control mechanism

 #86
20200377206
2020-12-03

Rotor blade folding system

 #87
20200331603
2020-10-22

Unmanned coaxial rotor aerial vehicle for transport of heavy loads

 #88
20200324887
2020-10-15

Negative hinge offset rotor head for a helicopter

 #89
20200317330
2020-10-08

Rotor head for aerial vehicle

 #90
20200283134
2020-09-10

Multirotor electric aircraft with redundant security architecture

 #91
20200283132
2020-09-10

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

 #92
20200277067
2020-09-03

Systems and methods for maintaining levitation of a rotor relative to a stator

 #93
20200262577
2020-08-20

Crash force attenuating fuel system

 #94
20200262550
2020-08-20

Encapsulated Drone

 #95
20200262549
2020-08-20

Vibration isolation systems for advancing blade concept rotorcraft

 #96
20200255131
2020-08-13

Non rotationally constrained friction damper for drive shaft

 #97
20200251970
2020-08-06

Dual rotor electric machine

 #98
20200247534
2020-08-06

Low drag hub for rotor

 #99
20200247522
2020-08-06

Self-righting aeronautical vehicle and method of use

 #100
20200231275
2020-07-23

DUAL ROTOR SYSTEM

 #101
20200223536
2020-07-16

Sealed hub and shaft fairing for rotary wing aircraft

 #102
20200207462
2020-07-02

DRONE WITH FUNCTION OF REVERSE PROPULSION FOR BALANCING

 #103
20200198780
2020-06-25

Dual-rotor wing motor

 #104
20200172233
2020-06-04

Systems and methods for controlling lift using contra-rotating rotors

 #105
20200164978
2020-05-28

Rotorcraft-convertible motorcar

 #106
20200161991
2020-05-21

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

 #107
20200156779
2020-05-21

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

 #108
20200148342
2020-05-14

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

 #109
20200148333
2020-05-14

Systems and methods for drive control of a magnetically levitated rotor

 #110
20200108919
2020-04-09

Quiet Redundant Rotorcraft

 #111
20200094951
2020-03-26

Rotor wing aircraft with propulsion apparatus on rotating pole

 #112
20200049011
2020-02-13

System and method for fluid manipulation

 #113
20200040936
2020-02-06

Hybrid rotor shaft for a vertical take-off and landing (VTOL) aircraft

 #114
20200017204
2020-01-16

Rotorcraft with canted coaxial rotors

 #115
20200017203
2020-01-16

Hub mounted vibration reduction system for coaxial rotor systems

 #116
20200010192
2020-01-09

Vertical take-off and landing aircraft with variable impelled air vectored thrust apertures

 #117
20190367164
2019-12-05

Collapsible flying device

 #118
20190352014
2019-11-21

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

 #119
20190337607
2019-11-07

DRONE USING COAXIAL INVERTED ROTOR

 #120
20190319415
2019-10-17

High current and RPM-capable slip ring assembly

 #121
20190310025
2019-10-10

Cooling system for heat generating components in a fairing

 #122
20190300166
2019-10-03

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

 #123
20190276143
2019-09-12

BLADE RETENTION SYSTEM FOR RIGID ROTOR

 #124
20190210717
2019-07-11

Yaw moment supplement for directional control

 #125
20190202546
2019-07-04

Online optimization-based flight control system

 #126
20190202542
2019-07-04

Self-righting aeronautical vehicle and method of use

 #127
20190193848
2019-06-27

Manned and unmanned aircraft

 #128
20190193847
2019-06-27

Manned and unmanned aircraft

 #129
20190168866
2019-06-06

Vertical take-off and landing aircraft

 #130
20190161168
2019-05-30

Redundant Aircraft Propulsion System Using Co-rotating Propellers Joined By Tip Connectors

 #131
20190146490
2019-05-16

Enhanced taxi control for rigid rotors

 #132
20190127058
2019-05-02

Swash plate system for helicopter rotor

 #133
20190118941
2019-04-25

Unmanned aerial vehicle and propulsion system for an unmanned aerial vehicle

 #134
20190100302
2019-04-04

Counter rotating torque drive for rotary wing vehicle propulsion

 #135
20190092466
2019-03-28

Unmanned flying device

 #136
20190061941
2019-02-28

Autonomous self-stabilizing aerial system and method

 #137
20190048904
2019-02-14

Apparatus and method for fluid manipulation

 #138
20190023383
2019-01-24

Tilting coaxial rotor for a rotary wing aircraft

 #139
20190023382
2019-01-24

Higher harmonic control augmented with active vibration control

 #140
20190017750
2019-01-17

Cooling system for rotor blade actuators

 #141
20190009897
2019-01-10

Rotorcraft rotor assemblies

 #142
20190009896
2019-01-10

Mounting plates for rotor hub accessories

 #143
20190009894
2019-01-10

Coaxial twin-propeller twin-motor aerial vehicle

 #144
20190009885
2019-01-10

Single-shaft aerial vehicle

 #145
20190002096
2019-01-03

Method and system for generating a set of values for respective ones of a set of parameters used in determining rotor blade profiles for a coaxial rotor system

 #146
20190002095
2019-01-03

INDEPENDENT PROPELLER/MAIN ROTOR SPEED CONTROL FOR X2 TECHNOLOGY

 #147
20180370623
2018-12-27

System, assemblies and methods for mechanical-thrust power conversion multifans

 #148
20180354623
2018-12-13

Multi-rotor aerial vehicle with single arm failure redundancy

 #149
20180354612
2018-12-13

UAV rotor system

 #150
20180346136
2018-12-06

Auxiliary power system for rotorcraft with folding propeller arms and crumple zone loading gear

 #151
20180327093
2018-11-15

Aircraft-retrieval system

 #152
20180319487
2018-11-08

Rotorcraft configuration

 #153
20180312257
2018-11-01

Multirotor vehicle

 #154
20180305038
2018-10-25

Touchdown control system

 #155
20180305003
2018-10-25

Seals for rotor system fairings

 #156
20180297696
2018-10-18

Adjustable scissor link

 #157
20180290740
2018-10-11

MONO-CYCLIC SWASHPLATE

 #158
20180283499
2018-10-04

Rotorcraft internal transfer member transmission

 #159
20180281949
2018-10-04

SYSTEMS AND METHODS FOR STABILISATION OF AERIAL VEHICLES

 #160
20180281939
2018-10-04

Vertically oriented tube-launchable rotary wing aircraft having respective rotors at opposite ends of main body

 #161
20180281932
2018-10-04

Active flow control system

 #162
20180281918
2018-10-04

Crash energy attenuation system for a transmission support in a vertical lift aircraft

 #163
20180273166
2018-09-27

Rotary wing vehicle

 #164
20180265186
2018-09-20

Vibration Isolation Systems for Advancing Blade Concept Rotorcraft

 #165
20180257771
2018-09-13

Directional control for coaxial rotary wing craft

 #166
20180244378
2018-08-30

Manned and unmanned aircraft

 #167
20180237134
2018-08-23

Bearing arrangement and an aircraft

 #168
20180231986
2018-08-16

AIRCRAFT WITH SPEED OR ACCELERATION COMMAND

 #169
20180222578
2018-08-09

Coaxial split torque gear box

 #170
20180215482
2018-08-02

Rotary wing unmanned aerial vehicle and pneumatic launcher

 #171
20180215464
2018-08-02

Devices and methods for in flight transition VTOL/fixed wing hybrid aircraft structures and flight modes

 #172
20180215463
2018-08-02

Multi-speed gearbox for tail rotor of a compound helicopter

 #173
20180202605
2018-07-19

Deaerating assembly

 #174
20180186450
2018-07-05

Shape-reconfigurable drone

 #175
20180148166
2018-05-31

Tension torsion strap

 #176
20180148165
2018-05-31

ROTOR STATE FEEDBACK SYSTEM

 #177
20180141646
2018-05-24

Propulsor hub weight element and balancing method

 #178
20180118334
2018-05-03

Rotor sequencing for dual rotor aircraft

 #179
20180113478
2018-04-26

Gust alleviating control for a coaxial rotary wing aircraft

 #180
20180086443
2018-03-29

Variable ratio gearbox for a rotary wing aircraft tail rotor

 #181
20180086442
2018-03-29

Tilt Winged Multi Rotor

 #182
20180079498
2018-03-22

Connector assembly for rotor head swashplate

 #183
20180057135
2018-03-01

Self-righting aeronautical vehicle and method of use

 #184
20180050795
2018-02-22

Tip clearance harmonic estimation

 #185
20180045791
2018-02-15

POWER SUPPLY CONDITION MONITOR

 #186
20180029692
2018-02-01

Spinner shaft attachment

 #187
20180002002
2018-01-04

ROTOR ASSEMBLY INCLUDING A ONE PIECE MOLDING ROTOR HUB

 #188
20170351270
2017-12-07

Attitude-coupled targeting system for rotary wing aircraft

 #189
20170349275
2017-12-07

ELEVATOR AND RUDDER CONTROL OF A ROTORCRAFT

 #190
20170341743
2017-11-30

Trim tab retention system, an aircraft employing same and a method of retaining a trim tab within a blade housing

 #191
20170341733
2017-11-30

ROTOR HEAD FOR PROP-ROTOR

 #192
20170334556
2017-11-23

Steady state differential roll moment control with automated differential lateral control

 #193
20170327217
2017-11-16

Composite reinforced swashplate

 #194
20170327215
2017-11-16

Directional stiffness bearing sleeve assembly for rotor systems

 #195
20170327209
2017-11-16

Multi-objective control system with control allocation

 #196
20170323541
2017-11-09

Surveillance position determining apparatus, surveillance position determining method, and computer-readable medium

 #197
20170320565
2017-11-09

Hinge mechanism for a weight-shifting coaxial helicopter

 #198
20170315563
2017-11-02

Flight control system for a rotary wing aircraft

 #199
20170308101
2017-10-26

AIRCRAFT AND METHOD OF ORIENTING AN AIRFRAME OF AN AIRCRAFT

 #200
20170305544
2017-10-26

TURN RADIUS AND BANK ANGLE FOR ROTARY WING AIRCRAFT

 #201
20170305543
2017-10-26

SEALED HUB AND SHAFT FAIRING FOR ROTARY WING AIRCRAFT

 #202
20170305540
2017-10-26

Noise modes for rotary wing aircraft

 #203
20170305539
2017-10-26

Rotorcraft footprint

 #204
20170305538
2017-10-26

Unmanned aerial vehicle

 #205
20170305534
2017-10-26

ROTORCRAFT SYSTEMS TO REDUCE PILOT WORKLOAD

 #206
20170297697
2017-10-19

Rotorcraft including auxiliary propulsor positioned to ingest boundary layer flow

 #207
20170297696
2017-10-19

AIRCRAFT MAIN ROTOR DRAG TO AIRFRAME DRAG

 #208
20170297694
2017-10-19

ROTOR SPEED MANAGEMENT

 #209
20170297693
2017-10-19

Feed-forward compensation for gyroscopic loads in a coaxial rotor

 #210
20170297692
2017-10-19

ROTARY WING AIRCRAFT

 #211
20170297690
2017-10-19

Hub separation in dual rotor rotary wing aircraft

 #212
20170297688
2017-10-19

Integrated main rotor hub and shaft

 #213
20170297686
2017-10-19

Anti-vibration moment generating aircraft actuation system

 #214
20170291702
2017-10-12

Collective to elevator mixing of a rotary wing aircraft

 #215
20170291699
2017-10-12

Dual rotor, rotary wing aircraft

 #216
20170291689
2017-10-12

Propeller diverter duct

 #217
20170284371
2017-10-05

Wind-powered recharging for a weight-shifting coaxial helicopter

 #218
20170283049
2017-10-05

DIFFERENTIAL PRE-CONE ROTARY WING ARRANGEMENT AND AIRCRAFT

 #219
20170283047
2017-10-05

Main rotor rotational speed control for rotorcraft

 #220
20170283046
2017-10-05

SEALED HUB AND SHAFT FAIRING FOR ROTARY WING AIRCRAFT

 #221
20170283045
2017-10-05

TRANSLATION THRUST SYSTEM ENGAGEMENT AND DISENGAGMENT FOR ROTARY WING AIRCRAFT

 #222
20170283042
2017-10-05

Weight-shifting coaxial helicopter

 #223
20170277201
2017-09-28

NOSE ATTITUDE CONTROL OF A ROTARY WING AIRCRAFT

 #224
20170275014
2017-09-28

Rotorcraft rotor and propeller speed

 #225
20170275011
2017-09-28

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

 #226
20170274994
2017-09-28

Gearbox for a dual rotor, rotary wing aircraft

 #227
20170274990
2017-09-28

ROTOR HOVER FIGURE OF MERIT FOR ROTARY WING AIRCRAFT

 #228
20170274987
2017-09-28

Single collective stick for a rotary wing aircraft

 #229
20170267338
2017-09-21

ACOUSTIC SIGNATURE VARIATION OF AIRCRAFT UTILIZING A CLUTCH

 #230
20170259916
2017-09-14

Soft in-plane and stiff out-of-plane rotor system

 #231
20170233068
2017-08-17

Lift offset control of a rotary wing aircraft

 #232
20170233067
2017-08-17

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

 #233
20170225797
2017-08-10

AIRCRAFT DESIGN FOR AIR TO AIR REFUELING

 #234
20170225775
2017-08-10

ROTORCRAFT OPERATIONAL ALTITUDE AND AIRSPEED

 #235
20170225774
2017-08-10

Anti-vibration load generating aircraft actuation system

 #236
20170225772
2017-08-10

Active airflow system and method of reducing drag for aircraft

 #237
20170225771
2017-08-10

Plate member for reducing drag on a fairing of an aircraft

 #238
20170220048
2017-08-03

ROTARY WING AIRCRAFT AND METHOD OF CONTROLLING A ROTARY WING AIRCRAFT

 #239
20170217582
2017-08-03

Dual rotor, rotary wing aircraft

 #240
20170217581
2017-08-03

BLADE INDEXING OF A ROTARY WING AIRCRAFT

 #241
20170217575
2017-08-03

Active vibration control of a rotorcraft

 #242
20170217566
2017-08-03

Motor and propeller thrust generating device

 #243
20170210480
2017-07-27

Rotor systems for rotorcraft

 #244
20170210463
2017-07-27

Tip clearance measurement of a rotary wing aircraft

 #245
20170210461
2017-07-27

Torque and thrust control of a propeller

 #246
20170190415
2017-07-06

Transmission for coaxial multi-rotor system

 #247
20170190414
2017-07-06

Rotor damping

 #248
20170183090
2017-06-29

Propeller rotor for a vertical take off and landing aircraft

 #249
20170183081
2017-06-29

Multi-Rotor Passenger-Carrying Aircraft with Foldable Aircraft Arm

 #250
20170174326
2017-06-22

VORTEX GENERATORS AND METHOD OF CREATING VORTICES ON AN AIRCRAFT

 #251
20170174323
2017-06-22

Redundant aircraft propulsion system using co-rotating propellers joined by tip connectors

 #252
20170166305
2017-06-15

ROTARY WING VEHICLE

 #253
20170137125
2017-05-18

Drone, method and systems for airborne visualization

 #254
20170137121
2017-05-18

Flex beam clamp for rotor assembly

 #255
20170113790
2017-04-27

FAIRING WITH INTEGRATED SENSORY SYSTEM OF A ROTARY-WING AIRCRAFT

 #256
20170096220
2017-04-06

Central-positioned pitch control device for a coaxial helicopter

 #257
20170096213
2017-04-06

Structurally efficient pin wrap

 #258
20170096212
2017-04-06

DRAG REDUCTION OF HIGH SPEED AIRCRAFT

 #259
20170021922
2017-01-26

Rotor phase control

 #260
20170021912
2017-01-26

De-rotation system for a shaft fairing

 #261
20160375995
2016-12-29

Rotor shaft closeout plate

 #262
20160375983
2016-12-29

Self-righting frame and aeronautical vehicle and method of use

 #263
20160347446
2016-12-01

Devices and methods for in flight transition VTOL/fixed wing hybrid aircraft structures and flight modes

 #264
20160318605
2016-11-03

Rotor apparatus

 #265
20160280359
2016-09-29

Perching attachment for unmanned aircraft

 #266
20160272313
2016-09-22

Unmanned aerial vehicle

 #267
20160264238
2016-09-15

Rotor driving system

 #268
20160251077
2016-09-01

Small Flying Object

 #269
20160251076
2016-09-01

Method and device for driving rotor

 #270
20160224030
2016-08-04

Lift offset management and control systems for coaxial rotorcraft

 #271
20160214711
2016-07-28

Non-loaded manual blade fold assembly

 #272
20160207622
2016-07-21

Non-loaded manual blade fold assembly

 #273
20160207620
2016-07-21

Rotor hub for rotary wing aircraft

 #274
20160207618
2016-07-21

Propeller gearbox oil cooler for a rotary wing aircract

 #275
20160200435
2016-07-14

Swashplate apparatus

 #276
20160200432
2016-07-14

Weight efficient servo attachment scheme for rigid coaxial rotor control system

 #277
20160200431
2016-07-14

Composite stiffened rigid propeller shaped main rotor hub

 #278
20160176494
2016-06-23

Self-righting frame and aeronautical vehicle

 #279
20160167778
2016-06-16

Unmanned flying device

 #280
20160152342
2016-06-02

Torque split gearbox for rotary wing aircraft

 #281
20160137312
2016-05-19

UNMANNED AERIAL VEHICLE LAUNCH SYSTEM

 #282
20160122013
2016-05-05

Scissoring fold arrangement for dual plane four bladed rotor hubs

 #283
20160122012
2016-05-05

Drone

 #284
20160114896
2016-04-28

Alternative Fuel Source Vehicle

 #285
20160059958
2016-03-03

Controlling Rotary Wing Aircraft

 #286
20160046371
2016-02-18

Coaxial counter-rotating rotor system

 #287
20150375859
2015-12-31

Coaxial lifting system

 #288
20150367937
2015-12-24

Independent speed and attitude control for a rotary wing aircraft

 #289
20150360777
2015-12-17

Multi-task frisbee-umbrella

 #290
20150354668
2015-12-10

Rotorcraft and planetary gear systems

 #291
20150321756
2015-11-12

Rotor Head of Remote Control Helicopter and Remote Control Helicopter

 #292
20150321754
2015-11-12

Coaxial counter-rotating unmanned helicopter

 #293
20150314864
2015-11-05

Overlapping Synchronized Twin Blades

 #294
20150314855
2015-11-05

Coaxial rotor low-speed mixing

 #295
20150274286
2015-10-01

Asymmetric multirotor helicopter

 #296
20150232176
2015-08-20

System and method for avoiding inadvertant entry into an unsafe vertical descent speed region for rotorcraft

 #297
20150210381
2015-07-30

Pitch feedback control splitting for helicopters with redundant actuators

 #298
20150198436
2015-07-16

Tip clearance measurement

 #299
20150139799
2015-05-21

Counter-rotating rotor system with static mast

 #300
20150125299
2015-05-07

Counter-rotating rotor system with stationary standpipe