Patents-Review.com
ClassID:

72133 ⎘

B64C27/50 - CPC Classification

Classification description:

Rotorcraft; Rotors peculiar thereto; Rotors; Blades; Constructional features Blades foldable to facilitate stowage of aircraft

Recent Application in this class:
#1
20260091893
2026-04-02

Unmanned Flying Device

 #2
20250388317
2025-12-25

Vertiport with a Buffer Zone

 #3
20250333160
2025-10-30

PROPELLER

 #4
20250326483
2025-10-23

Distributed Propulsion System for Vertical Take Off and Landing Closed Wing Aircraft

 #5
20250223030
2025-07-10

Self-Folding Propeller

 #6
20250178724
2025-06-05

Distributed Propulsion System for Vertical Take Off and Landing Closed Wing Aircraft

 #7
20250153846
2025-05-15

MULTI-LEVEL VERTIPORT

 #8
20250121956
2025-04-17

GROUND SERVICE DEVICE FOR SECURING ROTOR BLADES OF A ROTARY-WING AIRCRAFT

 #9
20250100680
2025-03-27

BLADE POSITION CONTROL SYSTEM

 #10
20250058872
2025-02-20

COMPACT PERSONAL FLIGHT VEHICLE

 #11
20240294252
2024-09-05

Distributed propulsion system for vertical take off and landing closed wing aircraft

 #12
20240278910
2024-08-22

DISTRIBUTED PROPULSION SYSTEM

 #13
20240262499
2024-08-08

Compact personal flight vehicle

 #14
20240182164
2024-06-06

Method for operating a vertiport

 #15
20240182163
2024-06-06

High-throughput vertiport with parallel handling

 #16
20240174337
2024-05-30

Helicopter tail folding system

 #17
20240158096
2024-05-16

Aerial transportation system

 #18
20240059408
2024-02-22

Rotary wing air vehicle

 #19
20240043117
2024-02-08

Vertical take off and landing closed wing aircraft

 #20
20230382526
2023-11-30

Distributed propulsion system for vertical take off and landing closed wing aircraft

 #21
20230348088
2023-11-02

Propulsion unit with foldable propeller blades and method for stopping the propeller in an indexed angular position

 #22
20230331380
2023-10-19

Variable incidence wing aircraft having a wing stowage mode

 #23
20230312143
2023-10-05

Tandem Rotor Unmanned Aerial Vehicle and Attitude Adjustment Control Method

 #24
20230303242
2023-09-28

Self-folding propeller

 #25
20230249812
2023-08-10

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

 #26
20230234702
2023-07-27

AIRCRAFT, PROPELLER ASSEMBLIES, AND METHODS OF MAKING AIRCRAFT

 #27
20230234696
2023-07-27

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

 #28
20230192293
2023-06-22

Distributed propulsion system

 #29
20230192288
2023-06-22

Aircraft having rotor assemblies rotating in parallel planes

 #30
20230174227
2023-06-08

Aerial Transportation System

 #31
20230150657
2023-05-18

MANNED AND UNMANNED AIRCRAFT

 #32
20230144699
2023-05-11

VEHICLE HAVING MULTIPLE CONFIGURATIONS INCLUDING ROAD CONFIGURATION AND FLYING CONFIGURATION BASED UPON ROTOR POSITION

 #33
20230056974
2023-02-23

Stowable lift rotors for VTOL aircraft

 #34
20220219820
2022-07-14

Unmanned flying device

 #35
20220219814
2022-07-14

Rotary-wing, hover-capable aircraft and methods

 #36
20220212785
2022-07-07

Aircraft having a high efficiency forward flight mode

 #37
20220194611
2022-06-23

Propulsion module of air mobility vehicle

 #38
20220177122
2022-06-09

Rotor Blades Of A Lift Rotor

 #39
20220111956
2022-04-14

Rotor assemblies for scissoring propeller

 #40
20220048616
2022-02-17

Foldable blade assembly

 #41
20210403168
2021-12-30

HYBRID PROPULSION SYSTEM FOR CONVERTIBLE AIRCRAFT

 #42
20210371103
2021-12-02

Vertical take off and landing closed wing aircraft

 #43
20210371085
2021-12-02

Single motor single actuator rotorcraft

 #44
20210362845
2021-11-25

Low-drag blade tip

 #45
20210316851
2021-10-14

Scissoring propeller with centripetally actuated centering lever lock

 #46
20210253239
2021-08-19

TAIL SITTER STOP-FOLD AIRCRAFT

 #47
20210229805
2021-07-29

DRONE INCLUDING A PIEZOELECTRIC STRUCTURE AND/OR A SELF-ENERGIZING CAPABILITY

 #48
20210221501
2021-07-22

Unmanned flight systems and control systems thereof

 #49
20210139132
2021-05-13

PROPELLERS, POWER ASSEMBLIES AND AERIAL VEHICLES

 #50
20210107644
2021-04-15

Battery used for unmanned aerial vehicle and unmanned aerial vehicle

 #51
20210094683
2021-04-01

Stowed blade active restraint

 #52
20210086893
2021-03-25

CONVERTIPLANE

 #53
20210047030
2021-02-18

Systems and methods for a vehicle-compatible drone

 #54
20210047029
2021-02-18

Centerline tiltrotor

 #55
20210024206
2021-01-28

Collapsible flying device

 #56
20200377206
2020-12-03

Rotor blade folding system

 #57
20200377205
2020-12-03

Rotor blade folding system

 #58
20200361599
2020-11-19

Dual flex-beam assembly for folding rotor blade

 #59
20200339260
2020-10-29

Distributed propulsion system for vertical take off and landing closed wing aircraft

 #60
20200317325
2020-10-08

Folding propeller, power component and unmanned aerial vehicle

 #61
20200283140
2020-09-10

Aircraft generating thrust in multiple directions

 #62
20200277056
2020-09-03

METHOD, APPARATUS, AND KIT FOR ASSEMBLING A MOBILE PLATFORM

 #63
20200277046
2020-09-03

Self-folding propeller

 #64
20200223532
2020-07-16

Common spar assembly for use in nonfoldable and foldable proprotor blades

 #65
20200180756
2020-06-11

Propeller-Hub Assembly With Folding Blades For VTOL Aircraft

 #66
20200172243
2020-06-04

Asymmetric aerial vehicle

 #67
20200156782
2020-05-21

Distributed propulsion system

 #68
20200148343
2020-05-14

Rotor, power assembly and air vehicle

 #69
20200140057
2020-05-07

Unmanned aerial vehicle

 #70
20200108921
2020-04-09

Closed wing aircraft having a distributed propulsion system

 #71
20200070969
2020-03-05

Unmanned aerial systems having out of phase gimballing axes

 #72
20200055594
2020-02-20

Aerial transportation system

 #73
20200055593
2020-02-20

Rotorcraft flapping lock

 #74
20200039633
2020-02-06

Rotor blade locking assembly

 #75
20200031460
2020-01-30

UNMANNED AERIAL VEHICLE FOR DELIVERING CARGO

 #76
20200017205
2020-01-16

Augmented swashplate assembly

 #77
20200010192
2020-01-09

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

 #78
20200010183
2020-01-09

Method of blade fold for tiltrotor aircraft

 #79
20200001997
2020-01-02

Battery used for unmanned aerial vehicle and unmanned aerial vehicle

 #80
20190389569
2019-12-26

Blade fold method and apparatus for a tilt rotor hub

 #81
20190382106
2019-12-19

Folding concentrically mounted propeller blades for drag reduction

 #82
20190382100
2019-12-19

Semi-automatic rotor blade fold mechanism

 #83
20190367164
2019-12-05

Collapsible flying device

 #84
20190344884
2019-11-14

Rotor hub

 #85
20190300168
2019-10-03

Apparatus and method for removing main rotor blades from main rotor hub yoke

 #86
20190248492
2019-08-15

DRONE

 #87
20190248481
2019-08-15

Mast lockout systems for tiltrotor aircraft

 #88
20190233097
2019-08-01

Multi-piece inboard-beam

 #89
20190233096
2019-08-01

Tri-hybrid yoke

 #90
20190217953
2019-07-18

Control systems for unmanned aerial vehicles

 #91
20190217950
2019-07-18

Aircraft with thrust vectoring propulsion assemblies

 #92
20190193848
2019-06-27

Manned and unmanned aircraft

 #93
20190193847
2019-06-27

Manned and unmanned aircraft

 #94
20190185153
2019-06-20

Outboard centrifugal force bearing with inboard blade fold axis in a folding rotor blade assembly

 #95
20190185152
2019-06-20

Compact folding yoke with flexible yoke arms in a folding rotor blade assembly

 #96
20190185151
2019-06-20

Compact folding yoke in a folding rotor blade assembly

 #97
20190185150
2019-06-20

SPLIT YOKE IN A FOLDING ROTOR BLADE ASSEMBLY

 #98
20190185142
2019-06-20

Folding spindle and bearing assembly in a folding rotor blade assembly

 #99
20190176983
2019-06-13

RAPID AERIAL DEPLOYED DRONE

 #100
20190168866
2019-06-06

Vertical take-off and landing aircraft

 #101
20190112025
2019-04-18

Unmanned aerial vehicle

 #102
20190092466
2019-03-28

Unmanned flying device

 #103
20190071180
2019-03-07

Battery used for unmanned aerial vehicle and unmanned aerial vehicle

 #104
20190071178
2019-03-07

Rotary wing drone comprising a collapsible drone structure

 #105
20190061914
2019-02-28

Aircraft propeller comprising collapsible variable pitch blades

 #106
20190055003
2019-02-21

FOLDABLE PROPELLER, POWER ASSEMBLY AND UNMANNED AERIAL VEHICLE

 #107
20180370625
2018-12-27

Convertible rotor aircraft

 #108
20180334240
2018-11-22

Aircraft hub fairing with movable members

 #109
20180327088
2018-11-15

Rotating apparatus

 #110
20180281939
2018-10-04

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

 #111
20180257769
2018-09-13

Self-folding propeller

 #112
20180244381
2018-08-30

Vertical take off and landing closed wing aircraft

 #113
20180244378
2018-08-30

Manned and unmanned aircraft

 #114
20180244376
2018-08-30

Distributed propulsion system for vertical take off and landing closed wing aircraft

 #115
20180244364
2018-08-30

Modular fuselage sections for vertical take off and landing distributed airframe aircraft

 #116
20180229830
2018-08-16

Foldable rotor blade assembly

 #117
20180222577
2018-08-09

Variable in-flight wing fold system

 #118
20180215462
2018-08-02

Distributed propulsion system

 #119
20180208291
2018-07-26

Unmanned aerial vehicle with linkage foldable arms

 #120
20180186445
2018-07-05

Forward folding rotor blades

 #121
20180178896
2018-06-28

Unfolding propeller unit type unmanned aerial vehicle

 #122
20180155062
2018-06-07

Weights for water immersion testing

 #123
20180155056
2018-06-07

Flight Landing Sequence of an Unmanned Aerial Vehicle into the Hand of the Operator

 #124
20180148168
2018-05-31

Self-contained aerial cargo vehicle

 #125
20180118334
2018-05-03

Rotor sequencing for dual rotor aircraft

 #126
20180105254
2018-04-19

Foldable multi-rotor UAV

 #127
20180079490
2018-03-22

Chordwise folding and locking of rotor systems

 #128
20180079487
2018-03-22

Tiltrotor articulated wing extension

 #129
20180057162
2018-03-01

Aircraft having rotor-to-wing conversion capabilities

 #130
20180057161
2018-03-01

Aircraft having dual rotor-to-wing conversion capabilities

 #131
20180002009
2018-01-04

Aircraft propulsion assembly

 #132
20170334543
2017-11-23

Folding wing tip and rotating locking member

 #133
20170320565
2017-11-09

Hinge mechanism for a weight-shifting coaxial helicopter

 #134
20170297678
2017-10-19

Blade fold system using flap hinge

 #135
20170284371
2017-10-05

Wind-powered recharging for a weight-shifting coaxial helicopter

 #136
20170283050
2017-10-05

Unmanned aerial vehicle

 #137
20170259914
2017-09-14

Multi-configuration autonomous platform with mounted camera

 #138
20170241474
2017-08-24

System and method of rotating rotor blades from a distance

 #139
20170217580
2017-08-03

System for shimming blade fold angle about an axis of rotation

 #140
20170158331
2017-06-08

Method, apparatus, and kit for assembling a mobile platform

 #141
20170158327
2017-06-08

UAV with wing-plate assemblies providing efficient vertical takeoff and landing capability

 #142
20170121018
2017-05-04

Light weight rigid rotor with blade fold capability

 #143
20170073068
2017-03-16

SINGLE ACTUATOR BLADE FOLD LINKAGE

 #144
20160368598
2016-12-22

Helicopter blade folding apparatus

 #145
20160347448
2016-12-01

Disc-shaped turbo-jet aircraft

 #146
20160347441
2016-12-01

Deployable propeller

 #147
20160311553
2016-10-27

Tail sitter vehicle with aerial and ground refueling system

 #148
20160229245
2016-08-11

Vehicle

 #149
20160214711
2016-07-28

Non-loaded manual blade fold assembly

 #150
20160207622
2016-07-21

Non-loaded manual blade fold assembly

 #151
20160167778
2016-06-16

Unmanned flying device

 #152
20160122013
2016-05-05

Scissoring fold arrangement for dual plane four bladed rotor hubs

 #153
20160122012
2016-05-05

Drone

 #154
20160083087
2016-03-24

Rotorcraft flapping lock

 #155
20160031556
2016-02-04

Impact resistant propeller system, fast response electric propulsion system and lightweight vertical take-off and landing aircraft using same

 #156
20160001879
2016-01-07

Folding propellers system

 #157
20150321755
2015-11-12

Collapsible multi-rotor UAV

 #158
20150298804
2015-10-22

Rotorcraft flapping lock

 #159
20150274290
2015-10-01

Folding of rotorcraft rotor blades

 #160
20150251752
2015-09-10

Device for folding a blade, a blade, and an aircraft

 #161
20150225077
2015-08-13

Helicopter rotor blade clamp

 #162
20150086365
2015-03-26

Retractable composite rotor blade assembly

 #163
20140299708
2014-10-09

Rocket or ballistic launch rotary wing vehicle

 #164
20140291440
2014-10-02

Vehicle

 #165
20130315734
2013-11-28

Aerodynamic blade attachment for a bearingless rotor of a helicopter

 #166
20130313356
2013-11-28

Horizontal folding wingtip

 #167
20130280076
2013-10-24

Connection joint for attaching an airfoil blade to a helicopter's bearingless main rotor

 #168
20130280075
2013-10-24

Blade attachment for a bearingless rotor of a helicopter

 #169
20130251529
2013-09-26

Retractable composite rotor blade assembly

 #170
20130153706
2013-06-20

Life-saving vehicle

 #171
20120121412
2012-05-17

Blade fold system monitoring

 #172
20120018660
2012-01-26

Proximity sensor valve and lock system using same

 #173
20100135805
2010-06-03

Rigid rotor assembly for folding helicopter blades

 #174
20100104437
2010-04-29

Retractable composite rotor blade assembly

 #175
20100072325
2010-03-25

Forward (Upstream) Folding Rotor for a Vertical or Short Take-Off and Landing (V/STOL) Aircraft

 #176
20090097973
2009-04-16

Rotor blade folding system

 #177
20080131280
2008-06-05

Bearingless rotor blade assembly for a high speed rotary-wing aircraft

 #178
20070215749
2007-09-20

Rotor assemblies having automatic blade folding systems

 #179
20070065284
2007-03-22

Method and a device for blocking the pitch of a foldable blade of a rotorcraft rotor

 #180
20070031253
2007-02-08

Rotor for passively stable helicopter

 #181
20060211500
2006-09-21

Torque limiter having two mechanical inlets

 #182
20060193725
2006-08-31

Device for locking a structure for securing a blade to the hub of a rotorcraft rotor

 #183
20060120873
2006-06-08

Damper positioner for a rotor blade folding system

 #184
20060088417
2006-04-27

Two-outlet electromechanical motor

 #185
20060067822
2006-03-30

Pitch lock and lag positioner for a rotor blade folding system

 #186
20050211825
2005-09-29

Blade restraint system

 #187
18810158
2026-05-05

Scissoring mechanisms deploying at low speed

 #188
18648157
2025-07-01

Electric propulsor with folding propeller

 #189
17948135
2024-09-17

Scissoring mechanisms deploying at low speed

 #190
16818524
2022-10-11

Conformal pylon/boom prop-rotors

 #191
16526860
2020-03-10

Aircraft generating thrust in multiple directions

 #192
16040953
2022-04-05

Flight module for an aerial vehicle

 #193
15992038
2018-10-23

Collapsible flying device

 #194
15600296
2018-02-20

Manned and unmanned aircraft

 #195
15600292
2019-08-27

Shaft-mounted operators for folding and opening propeller blades

 #196
15428038
2017-11-21

Elongated nose structure to provide stability during boarding

 #197
15362557
2020-10-13

Configurable aerial vehicles