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Class Information
Number: 244/24
Name: Aeronautics > Aircraft, lighter-than-air
Description: Miscellaneous aircraft which ordinarily have a total weight less than or equal to that of the volume of air which they displace and are therefore sustained by their buoyancy with respect to the air.










Sub-classes under this class:

Class Number Class Name Patents
244/28 Airship and beating wing sustained 9
244/29 Airship and fluid sustained 35
244/26 Airship and helicopter sustained 43
244/27 Airship and paddle wheel sustained 3
244/25 Airships with sustaining wings 38
244/30 Airships 204
244/31 Balloons 161


Patents under this class:
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Patent Number Title Of Patent Date Issued
8645005 Multipurpose modular airship systems and methods Feb. 4, 2014
8629788 Sensing, display, and dissemination of detected turbulence Jan. 14, 2014
8622338 Lighter-than-air systems, methods, and kits for obtaining aerial images Jan. 7, 2014
8505847 Lighter-than-air systems, methods, and kits for obtaining aerial images Aug. 13, 2013
8485465 Long mission tethered aerostat and method of accomplishing Jul. 16, 2013
8448894 Method and apparatus for a mobile aerial sustained solar power-plant May. 28, 2013
8342442 Advanced airship technologies Jan. 1, 2013
8303367 Flying shark Nov. 6, 2012
8168283 Highly reflective materials for use as logos and/or identification May. 1, 2012
8158236 Conductive seam cover tape Apr. 17, 2012
8152092 Aerial transporter Apr. 10, 2012
8083174 Long mission tethered aerostat and method of accomplishing Dec. 27, 2011
8074638 Inflatable solar concentrator balloon method and apparatus Dec. 13, 2011
8052082 Optimized aerodynamic, propulsion, structural and operations features for lighter-than-air vehicles Nov. 8, 2011
7999698 Anti-collision lighting systems and methods for a micro aerial vehicle Aug. 16, 2011
7950479 High efficiency vehicle May. 31, 2011
7922116 Device and method for sealing and lighting a balloon Apr. 12, 2011
7776295 Flying apparatus and method for removing harmful gases from the atmosphere Aug. 17, 2010
7690596 Apparatus for lighter-than-air aircraft Apr. 6, 2010
7571875 Device and method for sealing and lighting a balloon Aug. 11, 2009
7568656 System for controlling the lift of aircraft Aug. 4, 2009
7478779 Device and method for sealing and lighting a balloon Jan. 20, 2009
7448572 Direct mounted propulsion for non-rigid airships Nov. 11, 2008
7380750 Method for lighter-than-air aircraft Jun. 3, 2008
7341223 Hybrid unmanned vehicle for high altitude operations Mar. 11, 2008
7317261 Power generating apparatus Jan. 8, 2008
7263939 Simplified elevated sailing apparatus Sep. 4, 2007
7264202 Tri-cycloidal airship Sep. 4, 2007
7147184 Aerodynamic fairing system for airship Dec. 12, 2006
7129596 Hovering wind turbine Oct. 31, 2006
7093789 Delta-winged hybrid airship Aug. 22, 2006
7055778 Apparatus and method for lighter-than-air aircraft Jun. 6, 2006
6925949 Elevated sailing apparatus Aug. 9, 2005
6896222 Hydrogen lighter-than-air ship May. 24, 2005
6834829 Vertical lift aircraft having an enclosed rotary wing Dec. 28, 2004
6739549 Dirigible balloon rigidified by helium tanks May. 25, 2004
6607163 Autonomous stratospheric airship Aug. 19, 2003
6581873 Hybrid winged airship (dynastat) Jun. 24, 2003
6565037 Hybrid aircraft and methods of flying May. 20, 2003
6402090 Balloon trajectory control system Jun. 11, 2002
6386480 Autonomous stratospheric airship May. 14, 2002
6357700 Electrically powered spacecraft/airship Mar. 19, 2002
6354535 Autonomous stratospheric airship Mar. 12, 2002
6328257 Cruise airship with an anchoring device and a helium tempering device Dec. 11, 2001
6325330 Power generation, transmission, and distribution system for an aerostat using a lightweight tether Dec. 4, 2001
6224015 Aerial cableway leading to an aerostatic airborne body May. 1, 2001
6189829 Apparatus and method utilizing cells to provide lift in lighter-than-air airships Feb. 20, 2001
6119983 Airship/spacecraft Sep. 19, 2000
6010093 High altitude airship system Jan. 4, 2000
5906335 Flight direction control system for blimps May. 25, 1999

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