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Class Information
Number: 244/7A
Name: Aeronautics > Aircraft, heavier-than-air > Airplane and helicopter sustained > Convertible > Rotary wing

Patents under this class:
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Patent Number Title Of Patent Date Issued
8615980 Gas turbine engine with noise attenuating variable area fan nozzle Dec. 31, 2013
8602347 Tilt rotor aircraft with fixed engine arrangement Dec. 10, 2013
8544787 High performance tilt rotor aircraft in which nacelle tilt angle and flaperon angle mechanically interwork with each other Oct. 1, 2013
8505846 Vertical takeoff and landing aircraft Aug. 13, 2013
8500062 Rotor blade spacing for vibration attenuation Aug. 6, 2013
8403255 Compound aircraft with autorotation Mar. 26, 2013
8376264 Rotor for a dual mode aircraft Feb. 19, 2013
8371520 Rapidly convertible hybrid aircraft and manufacturing method Feb. 12, 2013
8308522 Flying toy Nov. 13, 2012
8240601 Coupling with slack-takeup, a rotor, and a rotary wing aircraft Aug. 14, 2012
8205821 Engine propulsion system and methods of assembling the same Jun. 26, 2012
8157203 Methods and apparatus for transforming unmanned aerial vehicle Apr. 17, 2012
8070089 Hybrid helicopter that is fast and has long range Dec. 6, 2011
8011614 Bird vortex flying machine Sep. 6, 2011
7871034 Rotor hub systems and methods Jan. 18, 2011
7871033 Tilt actuation for a rotorcraft Jan. 18, 2011
7837141 Reaction drive rotor/wing variable area nozzle Nov. 23, 2010
7789341 Rotary wing aircraft having a non-rotating structural backbone and a rotor blade pitch controller Sep. 7, 2010
7766274 Active maple seed flyer Aug. 3, 2010
7665688 Convertible aerial vehicle with contra-rotating wing/rotors and twin tilting wing and propeller units Feb. 23, 2010
7624942 Decoupled ducting for twin-engine reaction rotor drive Dec. 1, 2009
7600711 Flexible ducting system including an articulable sealed joint Oct. 13, 2009
7579715 Device and method for transmitting and providing the power of capacitive actuators Aug. 25, 2009
7510139 Rotor wing aircraft having a bypassable radial inflow turbine Mar. 31, 2009
7472862 Rotating blade aircraft control system Jan. 6, 2009
7308762 Method and apparatus for rotatably supporting movable components, including canards Dec. 18, 2007
7178757 Motorcycle rider autogyro Feb. 20, 2007
7014142 Low-drag rotor/wing flap Mar. 21, 2006
6976653 VTOL micro-aircraft Dec. 20, 2005
6974105 High performance VTOL convertiplanes Dec. 13, 2005
6885917 Enhanced flight control systems and methods for a jet powered tri-mode aircraft Apr. 26, 2005
6868315 Flight control system for controlling the pitch of an aircraft with vertical takeoff and with an orientable lift direction Mar. 15, 2005
6845941 Rotary/fixed wing aircraft Jan. 25, 2005
6712313 Constant velocity drive rotary-wing aircraft rotor with torque splitting differential Mar. 30, 2004
6708921 Composite flapping flexure Mar. 23, 2004
6644588 Multi-mode tiltrotor nacelle control system with integrated envelope protection Nov. 11, 2003
6607161 Convertible aircraft with tilting rotors Aug. 19, 2003
6589017 Aircraft airfoil assembly and method Jul. 8, 2003
6561455 Vertical take-off and landing, aerodynamically self-sustained horizontal flight hybrid aircraft May. 13, 2003
6543719 Oscillating air jets for implementing blade variable twist, enhancing engine and blade efficiency, and reducing drag, vibration, download and ir signature Apr. 8, 2003
6450446 Counter rotating circular wing for aircraft Sep. 17, 2002
6398159 Arial disk Jun. 4, 2002
6344700 Redundant electrical DC power system for aircraft Feb. 5, 2002
6244537 Apparatus for operating a wing in three modes and system of use Jun. 12, 2001
6170779 Rotor pitch lock for rotary/wing aircraft Jan. 9, 2001
6161799 Rotor blade lock for rotary/wing aircraft Dec. 19, 2000
6064923 Aircraft with reduced wing structure loading May. 16, 2000
5915649 Roadable helicopter Jun. 29, 1999
5842665 Launch vehicle with engine mounted on a rotor Dec. 1, 1998
5799900 Landing and take-off assembly for vertical take-off and landing and horizontal flight aircraft Sep. 1, 1998

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