71977 ⎘
Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft Arrangements of or constructional features peculiar to multiple propellers
Sub-classes:FIXED WING AIRCRAFT WITH TRAILING ROTORS AND T-TAIL
#2AERONAUTICAL PROPULSION SYSTEM HAVING ELECTRIC FANS
#3Providing Feedback on a Mode Transition of a Craft
#4FIXED WING AIRCRAFT WITH TRAILING ROTORS AND T-TAIL
#5Systems and Methods for Efficient Cruise and Hover in VTOL
#6VTOL Aircraft for Network System
#7WORK DEVICE PROVIDED WITH A CYLINDRICAL ROTATING BODY
#8HYBRID AIRCRAFT PROPULSION
#9Electric Tiltrotor Aircraft
#10AERONAUTICAL PROPULSION SYSTEM HAVING ELECTRIC FANS
#11METHODS AND SYSTEMS FOR RETAINING LATERAL CONTROL OF AN UNMANNED AERIAL VEHICLE DURING LANDING WITH LEVELED INBOARD PROPELLERS
#12SYSTEMS AND METHODS FOR FLIGHT CONTROL OF AIRCRAFT
#13SYSTEMS AND METHODS FOR FLIGHT CONTROL OF EVTOL AIRCRAFT
#14UNDUCTED THRUST PRODUCING SYSTEM ARCHITECTURE
#15UNMANNED AERIAL VEHICLE FOR LOW-PRESSURE HYDROGEN TRANSPORT
#16FAIL-OPERATIONAL VTOL AIRCRAFT
#17Fixed wing aircraft with trailing rotors and T-tail
#18NARROW VEHICLES AND AIRCRAFT VEHICLES
#19Weapon mountable tactical heads-up display systems and methods
#20Vehicle, system, and method for vertical take-off and landing
#21METHOD AND SYSTEM FOR DETECTION AND RECOVERY OF BLOCKED AIR FLOW
#22METHODS AND SYSTEMS FOR RETAINING LATERAL CONTROL OF AN UNMANNED AERIAL VEHICLE DURING LANDING WITH LEVELED INBOARD PROPELLERS
#23Flying body
#24Hexagonal ring wing aerial vehicle
#25VTOL aircraft for network system
#26Unmanned aerial vehicle for low-pressure hydrogen transport
#27AIRCRAFT AND METHOD
#28Aircraft having a magnetically couplable payload module
#29VTOL rotorcraft with annular contra-rotating rotary wings and auxiliary propulsor
#30High-Altitude Airborne Remote Sensing
#31Fail-operational VTOL aircraft
#32Weapon mountable tactical heads-up display systems and methods
#33Unmanned aerial vehicle and control systems and methods
#34Flying wing aircraft having a two-dimensional thrust array
#35Combination UAV
#36Methods of vertical take-off/landing and horizontal straight flight of aircraft and aircraft for implementation
#37Vehicle, system, and method for vertical take-off and landing
#38POWER SUPPLY SYSTEM
#39Vertical air vehicle takeoff and landing stabilization apparatuses, systems, and methods
#40Systems and methods for efficient cruise and hover in VTOL
#41Triphibian Vehicle
#42Air vehicle configurations
#43Bistable pitch propeller system with bidirectional propeller rotation
#44TILTING DUCT COMPOUND HELICOPTER
#45Work device provided with a cylindrical rotating body
#46Methods and systems for retaining lateral control of an unmanned aerial vehicle during landing with leveled inboard propellers
#47Aircraft with asymmetric rotors
#48System and method of blade-tip facilitated aircraft capture
#49Hexagonal ring wing aerial vehicle
#50Short take off and land aircraft
#51Methods and systems for retaining lateral control of an unmanned aerial vehicle during landing with leveled inboard propellers
#52AIRCRAFT EQUIPPED WITH A DISTRIBUTED COUNTERROTATING UNDUCTED FAN PROPULSION SYSTEM
#53VTOL aircraft for network system
#54UNIVERSAL VEHICLE WITH IMPROVED STABILITY FOR SAFE OPERATION IN AIR, WATER AND TERRAIN ENVIRONMENTS
#55Autonomous thrust vectoring ring wing pod
#56V2 PPRW
#57Fixed wing aircraft with trailing rotors and T-tail
#58Aerial delivery systems using unmanned aircraft
#59Fixed-wing VTOL aerial vehicle
#60Vehicle, system, and method for vertical take-off and landing
#61Reactionless free-spinning motor with dual propellers
#62Unmanned Aerial Vehicle Power System for Minimizing Propulsion Failure
#63Fail-operational vtol aircraft
#64Unmanned aerial vehicle for low-pressure hydrogen transport
#65AMPHIBIOUS, PRESSURIZABLE AND LOW NOISE TWIN-ENGINE AIRCRAFT CONFIGURATION
#66Distributed electric propulsion modular wing aircraft with blown wing and extreme flaps for VTOL and/or STOL flight
#67Multirotor aircraft with a thrust producing unit that comprises an aerodynamically optimized shrouding
#68Vertical take off and landing (VTOL) aircraft with vectored thrust having continuously variable pitch attitude in hover
#69Excess thrust control for an aircraft
#70Electric tiltrotor aircraft
#71Planetary gearbox for gas turbine engine
#72Reactionless free-spinning motor with dual propellers
#73Site local servers for vehicle management
#74Hybrid rotorcraft having at least one pusher or puller propeller, and an associated piloting method
#75Float with flaps for air cooling in an aircraft
#76Rotor assembly
#77Duct for ducted-rotor aircraft
#78Rotor assembly
#79Fixed wing aircraft with trailing rotors and T-tail
#80NOVEL AIRCRAFT DESIGN USING TANDEM WINGS AND A DISTRIBUTED PROPULSION SYSTEM
#81Aircraft with right and left propulsion unit support beams extending between main and aft wings
#82Bistable pitch propeller system with bidirectional propeller rotation
#83Solid-state imaging device, method of driving the same, and electronic apparatus
#84SYSTEM AND METHOD FOR STABILIZING AND RESTRAINING AIR DISTURBANCES ON ELECTRICALLY PROPELLED AIRCRAFT
#85Vehicle, system, and method for vertical take-off and landing
#86CONVERTIPLANE
#87Solid-state imaging device, method of driving the same, and electronic apparatus
#88Single-axis gimbal mounted propulsion systems for aircraft
#89Unducted thrust producing system architecture
#90Blade angle position feedback system with extended markers
#91Aerial imaging aircraft having attitude stability
#92UNMANNED AERIAL VEHICLE
#93Unducted thrust producing system
#94VERTICAL TAKEOFF AND LANDING (VTOL) AIRCRAFT
#95HYBRID-ELECTRIC DUCTED FAN TRANSPORT
#96Dual-rotor electric machine
#97TURBOMACHINE
#98Common spar assembly for use in nonfoldable and foldable proprotor blades
#99Ducted fan assembly with curved stators
#100Asymmetric aerial vehicle
#101Aerial vehicle
#102Tilting duct compound helicopter
#103Autonomous thrust vectoring ring wing pod
#104Electric tiltrotor aircraft
#105ELECTRIC PROPELLER AND DUCTED FAN PROPULSION UNIT
#106Ring wing aerial vehicle
#107Six degree of freedom aerial vehicle having pivoting wing sections
#108Six degree of freedom aerial vehicle having reconfigurable wings
#109Six degree of freedom aerial vehicle having reconfigurable motors
#110Aerial vehicle propellers having variable force-torque ratios
#111Pipe props rotary wing
#112Six degree of freedom aerial vehicle control methods responsive to motor out situations
#113Unmanned aerial vehicles with compact storage mode
#114Aircraft convertible between fixed-wing and hovering orientations
#115Multirotor aircraft with a thrust producing unit that comprises an aerodynamically optimized shrouding
#116System and method for rotating a rotor of a tiltrotor aircraft
#117Bistable pitch propeller system with unidirectional propeller rotation
#118Systems and methods for acoustic radiation control
#119Parallel Hybrid Aircraft
#120Flying wing aircraft having a compact storage configuration
#121AIRCRAFT
#122Vehicle configuration with motors that rotate between a lifting position and a thrusting position
#123VERTICAL TAKE-OFF AND LANDING UNMANNED AERIAL VEHICLE
#124Fan-in-wing aerial vehicle and method for controlling posture thereof
#125Multirotor aerial vehicle with automatically rotatable arms
#126Closed Loop/Foil Propulsion System
#127VERTICAL TAKE-OFF AND LANDING AIRCRAFT
#128M-wing aircraft having VTOL and biplane orientations
#129EVTOL having many variable speed tilt rotors
#130Fixed wing aircraft with trailing rotors
#131VTOL fixed-wing aerial drone with interchangeable cabins
#132VTOL aircraft with step-up overlapping propellers
#133Unducted thrust producing system
#134VTOL aircraft having fixed-wing and rotorcraft configurations
#135Tiltwing multicopter with foldable and non-foldable propellers
#136Diamond quadcopter
#137VERTICAL TAKE OFF AND LANDING AIRCRAFT WITH FOUR TILTING WINGS AND ELECTRIC MOTORS
#138Vertical take off and landing (VTOL) aircraft with vectored thrust having continuously variable pitch attitude in hover
#139FOLDABLE PROPELLER, POWER ASSEMBLY AND UNMANNED AERIAL VEHICLE
#140Drones convertible into personal computers
#141VTOL aircraft for network system
#142Line replaceable propulsion assemblies for aircraft
#143VTOL aircraft for external load operations
#144Prioritizing use of flight attitude controls of aircraft
#145Aerial imaging aircraft having attitude stability during translation
#146Mission configurable aircraft having VTOL and biplane orientations
#147Aircraft having thrust to weight dependent transitions
#148Vertical takeoff and landing aircraft
#149Vertical takeoff and landing aircraft
#150VERTICAL TAKE-OFF AND LANDING (VTOL) AIRCRAFT AND A PROPULSION SYSTEM FOR A VEHICLE VERTICAL TAKE-OFF AND LANDING (VTOL)
#151Aircraft with linear thruster arrangement
#152Rotor assembly having a ball joint for thrust vectoring capabilities
#153Aircraft having omnidirectional ground maneuver capabilities
#154Aircraft with active aerosurfaces
#155Aircraft having M-wings
#156Systems and methods for acoustic radiation control
#157ELECTRICALLY POWERED AERIAL VEHICLES AND FLIGHT CONTROL METHODS
#158Aircraft and flight system
#159Aircraft having single-axis gimbal mounted propulsion systems
#160System and method of blade-tip facilitated aircraft capture
#161Universal vehicle with improved stability for safe operation in air, water and terrain environments
#162Six degree of freedom aerial vehicle with a ring wing
#163Thrust producing unit with at least two rotor assemblies and a shrouding
#164Tiltrotor propulsion system for an aircraft
#165Direct drive aft fan engine
#166Selectively thrusting propulsion units for aerial vehicles
#167Bistable pitch propeller system with unidirectional propeller rotation
#168Bistable pitch propeller system with bidirectional propeller rotation
#169Aircraft having a versatile propulsion system
#170Aircraft having autonomous and remote flight control capabilities
#171Aircraft with independently controllable propulsion assemblies
#172DRONE COMPRISING LIFT-PRODUCING WINGS
#173Crash-resistant aircraft and crash-resistant control method
#174Selectively thrusting propulsion units for aerial vehicles
#175Multi-rotor UAV with compact folding rotor arms
#176Aircraft with internally housed propellor units
#177Vehicle configuration with motors that rotate between a lifting position and a thrusting position
#178Propulsion unit for an aircraft
#179Gyroscopic orbiter with vertical takeoff and vertical landing capabilities
#180VEHICLE INCLUDING A TETRAHEDRAL BODY OR CHASSIS
#181AIRCRAFT PROPULSION SYSTEM
#182Vehicle configuration with motors that rotate between a lifting position and a thrusting position
#183Electrically powered personal vehicle and flight control method
#184Airframe-integrated propeller-driven propulsion systems
#185Method for controlling an aircraft propeller system during thrust reversal
#186Aircraft
#187Vane assembly for an unducted thrust producing system
#188Hybrid axial/cross-flow fan multi-rotor aerial vehicle
#189Unducted thrust producing system architecture
#190Unducted thrust producing system
#191Method for controlling an aircraft in the form of a multicopter and corresponding control system
#192Propulsion system for aircraft, in particular lightweight aircraft
#193Vertical-takeoff aircraft
#194Contra-rotating open fan propulsion system
#195AIRCRAFT WITH AT LEAST TWO PROPELLER DRIVES ARRANGED AT A DISTANCE FROM ONE ANOTHER IN THE SPAN WIDTH DIRECTION OF THE WINGS
#196Variable pitch anti torque coaxial counter rotation bi-prop rotor
#197Rotor with offset
#198Aerodynamic rotor blade configurations
#199Systems and methods for flight control of EVTOL aircraft
#200Aerodynamic rotor blade configurations
#201Methods of vertical take-off/landing and horizontal straight flight of aircraft and aircraft for implementation
#202Short take off and land aircraft
#203Site local servers for vehicle management
#204Spring-loaded flaps for air cooling in a wet environment
#205Fixed wing aircraft with trailing rotors
#206Tiltwing multicopter with foldable and non-foldable propellers
#207Shaft-mounted operators for folding and opening propeller blades
#208Coaxial drive propulsion system for aerial vehicles, and associated systems and methods
#209Collapsible large diameter propeller for quiet aircraft
#210Multicopter propeller guard system