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Class Information
Number: 244/5
Name: Aeronautics > Aircraft, heavier-than-air > Airplanes, weight diminished by bouyant gas
Description: Aeronautical machines sustained by aerodynamic action on airfoils, having also provision for continuous or temporary additional sustentation by buoyant gas.










Patents under this class:

Patent Number Title Of Patent Date Issued
8177159 Emergency and rescue aircraft May. 15, 2012
8113459 High-security aircraft Feb. 14, 2012
8033497 Hybrid thermal airship Oct. 11, 2011
7219854 Cycloidal hybrid advanced surface effects vehicle May. 22, 2007
7073749 High altitude reconnaissance vehicle Jul. 11, 2006
7036768 Multi-purpose airship May. 2, 2006
6982655 Method and indicator for displaying information showing the airspeed tolerance margins for an aircraft Jan. 3, 2006
6892981 Stealthy duffel bag airplane May. 17, 2005
6860449 Hybrid flying wing Mar. 1, 2005
6848647 METHODS OF BUOYANT AND/OR SEMI-BUOYANT (BASB) VEHICLES UTILIZING BASB IN CONJUNCTION WITH PRESSURIZED FLUID STREAM JET (PJET) AND VARIOUSLY SHAPED BODIES, WINGS, OUTRIGGERS, AND PROPULSION/REP Feb. 1, 2005
6565037 Hybrid aircraft and methods of flying May. 20, 2003
6196498 Semi-buoyant vehicle with aerodynamic lift capability Mar. 6, 2001
6164589 Centerline landing gear for aerocraft Dec. 26, 2000
6016991 Evacuated rotating envelope aircraft Jan. 25, 2000
5683060 Air vehicle Nov. 4, 1997
5527000 Duplex complementary carrier Jun. 18, 1996
5518205 High altitude, long duration surveillance system May. 21, 1996
5425515 Aircraft Jun. 20, 1995
5351911 Vertical takeoff and landing (VTOL) flying disc Oct. 4, 1994
5104060 Hot gas device Apr. 14, 1992
5005783 Variable geometry airship Apr. 9, 1991
4982915 Structure and method of producing foams having hydrogen-filled cells for use in airship/balloon envelopes Jan. 8, 1991
4889297 Light aircraft for short-distance takeoff and landing Dec. 26, 1989
4799629 Flying object for collecting solar rays Jan. 24, 1989
4375280 Free wing flyer Mar. 1, 1983
4014483 Lighter-than-air craft Mar. 29, 1977
3993268 Ballooned, STOL aircraft Nov. 23, 1976
3970270 Low speed aircraft Jul. 20, 1976











 
 
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