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Class Information
Number: 244/12.2
Name: Aeronautics > Aircraft, heavier-than-air > Airplane and fluid sustained > Circular
Description: Apparatus wherein the peripheral surface of either the aeronautical machine or the airfoil therefor is substantially in the form of a circle.
Patents under this class:
| Patent Number |
Title Of Patent |
Date Issued |
| 7294036 |
Flying disc |
Nov. 13, 2007 |
| 7204672 |
Multi-modal forced vortex device |
Apr. 17, 2007 |
| 7147183 |
Lift system for an aerial crane and propulsion system for a vehicle |
Dec. 12, 2006 |
| 7093788 |
Rotating flying wing aircraft and control system |
Aug. 22, 2006 |
| 7032859 |
Counter rotating ducted fan having a permanent magnet drive |
Apr. 25, 2006 |
| 6976653 |
VTOL micro-aircraft |
Dec. 20, 2005 |
| 6969027 |
Vertical takeoff and landing apparatus |
Nov. 29, 2005 |
| 6932296 |
Cycloidal VTOL UAV |
Aug. 23, 2005 |
| 6845942 |
Omni-directional air vehicle personal transportation system |
Jan. 25, 2005 |
| 6837457 |
Aircraft rotor and aircraft |
Jan. 4, 2005 |
| 6834829 |
Vertical lift aircraft having an enclosed rotary wing |
Dec. 28, 2004 |
| 6691949 |
Vertical takeoff and landing aerial vehicle |
Feb. 17, 2004 |
| 6672539 |
Power generation system |
Jan. 6, 2004 |
| 6669138 |
Rotary aeronautical lifting cell |
Dec. 30, 2003 |
| 6666403 |
Force-producing apparatus |
Dec. 23, 2003 |
| 6581872 |
Circular vertical take off & landing aircraft |
Jun. 24, 2003 |
| 6575401 |
Vertical-lift and horizontal flight aircraft |
Jun. 10, 2003 |
| 6575402 |
Cooling system for a hybrid aircraft |
Jun. 10, 2003 |
| 6572053 |
Flying vehicle of inverse sustentation (FVIS) |
Jun. 3, 2003 |
| 6565038 |
Supersonic propellers for aircrafts |
May. 20, 2003 |
| 6464552 |
Model helicopter |
Oct. 15, 2002 |
| 6450445 |
Stabilizing control apparatus for robtic or remotely controlled flying platform |
Sep. 17, 2002 |
| 6450446 |
Counter rotating circular wing for aircraft |
Sep. 17, 2002 |
| 6402088 |
Passenger vehicle employing a circumferentially disposed rotatable thrust assembly |
Jun. 11, 2002 |
| 6398159 |
Arial disk |
Jun. 4, 2002 |
| 6382557 |
Permanently rotating free aerostat mobile in radial translation relative to ambient air |
May. 7, 2002 |
| 6382560 |
High speed vertical take-off and land aircraft |
May. 7, 2002 |
| 6371406 |
Progressive 3-axis multi-variable propulsion vectoring aerial and spacecraft vehicle |
Apr. 16, 2002 |
| 6308912 |
Rotorcraft |
Oct. 30, 2001 |
| 6270036 |
Blown air lift generating rotating airfoil aircraft |
Aug. 7, 2001 |
| 6270038 |
Unmanned aerial vehicle with counter-rotating ducted rotors and shrouded pusher-prop |
Aug. 7, 2001 |
| 6254032 |
Aircraft and method for operating an aircraft |
Jul. 3, 2001 |
| 6073881 |
Aerodynamic lift apparatus |
Jun. 13, 2000 |
| 6053451 |
Remote-control flight vehicle structure |
Apr. 25, 2000 |
| 6050520 |
Vertical take off and landing aircraft |
Apr. 18, 2000 |
| 6016991 |
Evacuated rotating envelope aircraft |
Jan. 25, 2000 |
| 5881970 |
Levity aircraft design |
Mar. 16, 1999 |
| 5873545 |
Combined flying machine |
Feb. 23, 1999 |
| 5836542 |
Flying craft and a thruster engine suitable for use in such a craft |
Nov. 17, 1998 |
| 5836543 |
Discus-shaped aerodyne vehicle for extremely high velocities |
Nov. 17, 1998 |
| 5829714 |
Aerolift mechanism |
Nov. 3, 1998 |
| 5803199 |
Lift augmented ground effect platform |
Sep. 8, 1998 |
| 5765776 |
Omnidirectional and controllable wing using fluid ejection |
Jun. 16, 1998 |
| 5746390 |
Air-land vehicle with ducted fan vanes providing improved performance |
May. 5, 1998 |
| 5676334 |
Cyclic minimizer through alignment of the center of gravity and direction of flight vectors |
Oct. 14, 1997 |
| 5653404 |
Disc-shaped submersible aircraft |
Aug. 5, 1997 |
| 5595358 |
Multipurpose airborne vehicle |
Jan. 21, 1997 |
| 5507453 |
Gyro stabilized vectored thrust vertical takeoff or landing aircraft |
Apr. 16, 1996 |
| 5503351 |
Circular wing aircraft |
Apr. 2, 1996 |
| 5421538 |
VTOL aircraft |
Jun. 6, 1995 |
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