LandOfFree - US Patents - Listing for Aeronautics and astronautics

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter soft snow landing aid

Aeronautics and astronautics – Aircraft control – Automatic

Helicopter stick force augmentation null offset compensation

Aeronautics and astronautics – Aircraft sustentation – Sustaining airfoils

Helicopter stowable horizontal stabilizer

Aeronautics and astronautics – Kites – Airplane type

Helicopter stunt kite

Aeronautics and astronautics – Aircraft structure – Passenger or cargo loading or discharging

Helicopter supported material transfer assembly

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter tail boom with venting for alleviation and...

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter tail rotor authority altitude compensator

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter tail section

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter tail section and retrofit method

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter target

Aeronautics and astronautics – Aircraft power plants – Transmission of power

Helicopter transmission systems

Aeronautics and astronautics – Landing field arrangement – Mooring devices

Helicopter traversal system

Aeronautics and astronautics – Aircraft structure – Load accommodation

Helicopter truck dolly

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter turn coordination and heading hold mode control

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter two stage main reduction gearbox

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter type aircraft with ground effect structure

Aeronautics and astronautics – Landing gear – Retractable

Helicopter undercarriage

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter warning system

Aeronautics and astronautics – Aircraft – heavier-than-air – Helicopter or auto-rotating wing sustained – i.e. – gyroplanes

Helicopter with a gyroscopic rotor and rotor propellers to provi