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

Sub-classes under this class:

Class Number Class Name Patents
244/7A Rotary wing 62
244/7B Tail sitters 35
244/7C Tilting wing 48

Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8702031 VTOL twin fuselage amphibious aircraft with tilt-center wing, engine and rotor Apr. 22, 2014
8662442 Active prop rotor stability system Mar. 4, 2014
8615980 Gas turbine engine with noise attenuating variable area fan nozzle Dec. 31, 2013
8590833 Constant-velocity drive system for gimbaled rotor hubs Nov. 26, 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
8444082 High performance `X`-configuration airplane for storage and launch from a tubular container May. 21, 2013
8336815 Constant-velocity drive system for gimbaled rotor hubs Dec. 25, 2012
8292229 Aircraft and method of retrieving a rescue cradle into the aircraft fuselage Oct. 23, 2012
8162253 Convertible vehicle for road, air, and water usage Apr. 24, 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
8066219 Anhedral tip blades for tiltrotor aircraft Nov. 29, 2011
8020803 Rotorcraft engine and rotor speed synchronization Sep. 20, 2011
7930074 Vertical speed and flight path command module for displacement collective utilizing tactile cueing and tactile feedback Apr. 19, 2011
7918415 Convertible aircraft operating method Apr. 5, 2011
7873445 Governor for a rotor with a variable maximum collective pitch Jan. 18, 2011
7866598 Rotorcraft engine and rotor speed synchronization Jan. 11, 2011
7857252 Rotor/wing dual mode hub fairing system Dec. 28, 2010
7753309 VTOL/STOL tilt-prop flying wing Jul. 13, 2010
7681832 Ducted fan air vehicle with deployable wings Mar. 23, 2010
7611090 Reaction-drive rotorcraft having an adjustable blade jet Nov. 3, 2009
7584923 Tilt-rotor aircraft Sep. 8, 2009
7571879 Automatic conversion system for tiltrotor aircraft Aug. 11, 2009
7188802 Convertible aircraft provided with two tilt fans on either side of the fuselage, and with a non-tilting fan inserted in the fuselage Mar. 13, 2007
7147182 Gas-powered tip-jet-driven tilt-rotor compound VTOL aircraft Dec. 12, 2006
7143973 Avia tilting-rotor convertiplane Dec. 5, 2006
7070145 Tailboom-stabilized VTOL aircraft Jul. 4, 2006
7014142 Low-drag rotor/wing flap Mar. 21, 2006
6978970 Aircraft with foldable tail assembly Dec. 27, 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
6863242 Method and system for controlling an aircraft control surface Mar. 8, 2005
6863241 Control of an aircraft as a thrust-vectored pendulum in vertical, horizontal and all flight transitional modes thereof Mar. 8, 2005
6845939 Tailboom-stabilized VTOL aircraft Jan. 25, 2005
6845941 Rotary/fixed wing aircraft Jan. 25, 2005
6830215 Pivoting transmission unit with a device to take up play along the pivot axis Dec. 14, 2004
6824096 Device for controlling the pitch of the blades of a convertible aircraft rotor Nov. 30, 2004
6719244 VTOL aircraft control using opposed tilting of its dual propellers or fans Apr. 13, 2004
6695254 Rotary-wing aircraft rotor with constant velocity drive Feb. 24, 2004
6676073 Pivoting power transmission unit with peripheral face toothed gearwheels of the face gear type Jan. 13, 2004
6669137 Air vehicle having rotor/scissors wing Dec. 30, 2003
6644588 Multi-mode tiltrotor nacelle control system with integrated envelope protection Nov. 11, 2003
6634861 Power plant for propeller aircraft Oct. 21, 2003
6622962 Fixed wing aircraft having powered rotor VTOL capability with rotor blades stowable during horizontal flight Sep. 23, 2003
6604706 Gyrostabilized self propelled aircraft Aug. 12, 2003
6592071 Flight control system for a hybrid aircraft in the lift axis Jul. 15, 2003
6561455 Vertical take-off and landing, aerodynamically self-sustained horizontal flight hybrid aircraft May. 13, 2003
6497385 Rotor blade with optimized twist distribution Dec. 24, 2002

1 2 3

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