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Class Information
Number: 244/12.1
Name: Aeronautics > Aircraft, heavier-than-air > Airplane and fluid sustained
Description: Aeronautical machines having provision for sustentation in part or entirely by aerodynamic action on airfoils in fixed relation to the machines, having also provision for the sustention by the reaction to the downward movement of restricted masses or jets by air or other fluid, the forward propulsion of the machines may also be derived from movement of the same or similar masses or jets of air or other fluid.










Sub-classes under this class:

Class Number Class Name Patents
244/12.6 Channel wing 23
244/12.2 Circular 138
244/12.3 Dual propulsion 98
244/12.4 Thrust tilting 126
244/12.5 With thrust diverting 180


Patents under this class:
1 2 3

Patent Number Title Of Patent Date Issued
8667774 Coannular ducted fan Mar. 11, 2014
8636241 Hybrid jet/electric VTOL aircraft Jan. 28, 2014
8622335 Ducted fan VTOL vehicles Jan. 7, 2014
8596570 Aircraft vehicle centrifugal fan apparatus Dec. 3, 2013
8509968 System and method for real-time aircraft efficiency analysis and compilation Aug. 13, 2013
8473123 Programmable surface Jun. 25, 2013
8448892 Aircraft generating a lift from an interior thereof May. 28, 2013
8342441 VTOL vehicle with coaxially tilted or tiltable rotors Jan. 1, 2013
8256705 Torque production vehicle and method Sep. 4, 2012
8074917 Flying cycle apparatus Dec. 13, 2011
7735774 VTOL aircraft with forward-swept fixed wing Jun. 15, 2010
7641144 Cross-flow fan propulsion system Jan. 5, 2010
7611090 Reaction-drive rotorcraft having an adjustable blade jet Nov. 3, 2009
7520466 Gyro-stabilized air vehicle Apr. 21, 2009
7441724 System and method for controlling a roll rate of a torsionally-disconnected freewing aircraft Oct. 28, 2008
7427048 Linear acoustic pulsejet Sep. 23, 2008
7370828 Rotary wing aircraft May. 13, 2008
7281680 VTOL/STOL ducted propeller aircraft Oct. 16, 2007
7249732 Aerodynamically stable, VTOL aircraft Jul. 31, 2007
7231997 Hybrid drive powered lift platform Jun. 19, 2007
7201346 Circular fixed wing VTOL aircraft Apr. 10, 2007
7159817 Vertical take-off and landing (VTOL) aircraft with distributed thrust and control Jan. 9, 2007
7044422 Gyrostabilized self propelled aircraft May. 16, 2006
7032861 Quiet vertical takeoff and landing aircraft using ducted, magnetic induction air-impeller rotors Apr. 25, 2006
6892979 VTOL personal aircraft May. 17, 2005
6886776 VTOL personal aircraft May. 3, 2005
6860449 Hybrid flying wing Mar. 1, 2005
6837456 Microjet based control system Jan. 4, 2005
6817570 Ducted fan vehicles particularly useful as VTOL aircraft Nov. 16, 2004
6742741 Unmanned air vehicle and method of flying an unmanned air vehicle Jun. 1, 2004
6616094 Lifting platform Sep. 9, 2003
6591603 Pintle injector rocket with expansion-deflection nozzle Jul. 15, 2003
6588701 Unmanned mobile device Jul. 8, 2003
6561456 Vertical/short take-off and landing aircraft May. 13, 2003
6547181 Ground effect wing having a variable sweep winglet Apr. 15, 2003
6540179 In-flight loadable and refuelable unmanned aircraft system for continuous flight Apr. 1, 2003
6520449 Lifting platform with positive horizontal stability Feb. 18, 2003
6511017 Method of steering aircraft, and aircraft Jan. 28, 2003
6464166 Ducted fan vehicles particularly useful as VTOL aircraft Oct. 15, 2002
6450445 Stabilizing control apparatus for robtic or remotely controlled flying platform Sep. 17, 2002
6412731 Simplified buoyancy system for avoiding aircraft crashes Jul. 2, 2002
6398158 High altitude low flying platform hull Jun. 4, 2002
6352219 Flying vehicle with lift generators Mar. 5, 2002
6325011 Multiple-mode wing-in ground effect vehicle Dec. 4, 2001
6315241 Buoyancy system for avoiding light aircraft crashes Nov. 13, 2001
6296036 Auto-shutter system for eye protection against in-band frequency agile lasers Oct. 2, 2001
6109565 Air craft wing Aug. 29, 2000
6068219 Single surface multi axis aircraft control May. 30, 2000
6045089 Solar-powered airplane Apr. 4, 2000
6016992 STOL aircraft Jan. 25, 2000

1 2 3










 
 
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