| Patents for B64C 23 - Influencing air-flow over aircraft surfaces, not otherwise provided for (1,943) |
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| 05/26/1993 | EP0543266A1 Agent for reducing the drag on bodies travelling in aeriform fluid media |
| 05/25/1993 | US5213287 Wing modification method and apparatus |
| 05/23/1993 | CA2083461A1 Agent for reducing the drag on bodies traveling in aeriform fluid media |
| 05/11/1993 | US5209438 Method and apparatus for delaying the separation of flow from a solid surface |
| 05/11/1993 | US5209430 Helicopter low-speed yaw control |
| 05/04/1993 | US5207397 Rotatable nose and nose boom strakes and methods for aircraft stability and control |
| 04/28/1993 | CN1071385A Object with stromline profile, especially stabilizing foil in ship |
| 04/27/1993 | US5205715 Helicopter rotor blades |
| 04/27/1993 | US5205519 Boundary layer relaminarization device |
| 04/13/1993 | CA1316163C Aircraft pylon |
| 04/06/1993 | US5199851 Helicopter rotor blades |
| 03/31/1993 | EP0533915A1 Rotor flap apparatus and method |
| 03/23/1993 | US5195702 Rotor flap apparatus and method |
| 03/02/1993 | US5190441 Noise reduction in aircraft propellers |
| 02/18/1993 | WO1993002915A1 Aerofoil with variable geometry expansion surface |
| 02/03/1993 | EP0525912A1 Wing/winglet configurations and methods for aircraft |
| 01/19/1993 | US5180119 Vertical lift system through tangential blowing of air jets channelled over the top of rotating cylinders |
| 12/16/1992 | EP0518592A1 Vortex suppression for an eductor |
| 12/14/1992 | CA2068110A1 Vortex suppression for an eductor |
| 12/02/1992 | EP0516468A2 Jet engine fan nacelle |
| 12/01/1992 | CA2065637A1 Jet engine fan nacelle |
| 10/29/1992 | WO1992018383A1 Rotor flap apparatus and method |
| 10/27/1992 | US5158251 Aerodynamic surface tip vortex attenuation system |
| 10/20/1992 | US5156362 Jet engine fan nacelle |
| 10/20/1992 | US5156358 Aircraft outboard control |
| 09/29/1992 | US5150859 Generating power from a trailing vortex |
| 09/24/1992 | DE4203081A1 Helicopter rotor drive system - has electric motor which rotates rotor arm about its own axis |
| 05/27/1992 | EP0486971A1 Fume cupboard with intake profile |
| 04/29/1992 | EP0482932A1 Helicopter rotor blades |
| 04/22/1992 | EP0481661A1 Helicopter rotor blades |
| 04/15/1992 | CN2101638U Low loss aircraft profile |
| 04/07/1992 | US5102068 Spiroid-tipped wing |
| 03/31/1992 | US5100085 Aircraft wingtip vorticity redistribution apparatus |
| 03/10/1992 | US5094411 Control configured vortex flaps |
| 02/18/1992 | US5088665 Serrated trailing edges for improving lift and drag characteristics of lifting surfaces |
| 02/06/1992 | WO1992001602A1 Supersonic aircraft shock wave energy recovery system |
| 01/29/1992 | EP0468894A1 Lifting device and aircraft so equipped |
| 01/22/1992 | EP0466826A1 Low drag vortex generators |
| 01/15/1992 | EP0466468A2 Method for controlling turbulence |
| 12/18/1991 | EP0461296A1 Circulation control slots in helicopter yaw control system |
| 12/11/1991 | EP0271546B1 Aircraft |
| 12/03/1991 | US5069402 Alleviation of aircraft fuselage form drag |
| 12/03/1991 | US5069397 Stabilized aero-optical free shear layer interface |
| 11/05/1991 | US5062595 Delta wing with lift enhancing flap |
| 10/22/1991 | US5058837 Low drag vortex generators |
| 10/17/1991 | DE4029307C1 Vortex-creating control system - has control surfaces with actuators which may be locked in position |
| 10/08/1991 | US5054720 Trapped vortex cavity |
| 09/24/1991 | US5050819 Rotatable non-circular forebody flow controller |
| 08/13/1991 | US5039032 High taper wing tip extension |
| 08/06/1991 | US5037044 Aerodynamic or hydrodynamic surfaces |
| 07/16/1991 | US5031859 Lift-producing machine or device |
| 05/28/1991 | US5018688 Passive venting technique for shallow cavities |
| 05/21/1991 | US5016837 Venturi enhanced airfoil |
| 02/05/1991 | US4989810 Method and apparatus for influencing a laminar turbulent boundary layer transition on bodies in flow |
| 12/19/1990 | EP0305374B1 Aerodynamic components having leading edge devices |
| 11/13/1990 | US4969614 Jet-propelled aircraft |
| 10/30/1990 | US4966338 Aircraft pylon |
| 10/18/1990 | WO1990011929A1 Low drag vortex generators |
| 10/07/1990 | CA2014014A1 Low drag vortex generators |
| 09/11/1990 | US4955565 Low drag surface |
| 09/05/1990 | EP0319574A4 Venturi enhanced airfoil |
| 08/14/1990 | US4948068 Circulation control slots in helicopter yaw control system |
| 06/27/1990 | EP0264529B1 Missile with a stabilizing device |
| 05/10/1990 | DE3837812A1 Wing (mainplane) |
| 04/17/1990 | US4917336 Mounting assembly for unducted prop engine and method |
| 04/17/1990 | US4917335 Apparatus and method for facilitating supersonic motion of bodies through the atmosphere |
| 04/17/1990 | US4917332 Wingtip vortex turbine |
| 04/03/1990 | US4913381 Aerodynamic components having leading edge devices |
| 03/14/1990 | CN1007144B Aerodynamic device |
| 03/07/1990 | EP0356601A1 Improvements in jet-propelled aircraft |
| 02/27/1990 | US4903917 Projectile with rotatable stabilizing device |
| 01/23/1990 | US4895323 Rag control for powered lift aircraft |
| 12/14/1989 | DE3819145A1 Aerodynamically active end plates for aircraft-wing and propeller-blade tips |
| 12/05/1989 | US4884772 Cantilevered vortex control device |
| 11/16/1989 | DE3816430A1 Edge vortex scatter plate for blade tips of aerodynamic and hydrodynamic wings and control surfaces |
| 10/11/1989 | CN1036183A Transducer for energy saving and speed increasing |
| 09/26/1989 | US4869443 Method of extending the performance of a specific jet aircraft |
| 09/19/1989 | US4867394 Compression pylon |
| 09/07/1989 | DE3804415A1 Rotor aircraft (rotary-wing aircraft), control systems |
| 09/05/1989 | US4863118 Passive venting technique for shallow cavities |
| 08/24/1989 | WO1989007073A3 Aircraft |
| 08/23/1989 | EP0329211A2 Mounting assembly for unducted prop engine |
| 08/15/1989 | US4857698 Laser perforating process and article produced therein |
| 08/10/1989 | WO1989007073A2 Aircraft |
| 07/04/1989 | US4844385 Pneumatic aerodynamic control surface |
| 06/14/1989 | EP0319574A1 Venturi enhanced airfoil |
| 06/06/1989 | US4836473 Apparatus for influencing a boundary layer on the surface of a body moving through a medium |
| 05/31/1989 | EP0080460B1 Leading edge vortex flap for wings |
| 05/17/1989 | EP0315806A2 Method and device to cause the laminar-turbulent boundary layer transition on a body |
| 05/17/1989 | EP0315714A1 Using of enginehouse of airplane with running surface for creation of effect of Magnus for VTOL |
| 05/10/1989 | EP0315563A1 Convoluted plate to reduce base drag |
| 05/03/1989 | CN1032644A Wingless vertically ascending flying machine |
| 03/21/1989 | US4813633 Airfoil trailing edge |
| 03/21/1989 | US4813631 Laminar flow control airfoil |
| 03/08/1989 | EP0305374A1 Aerodynamic components having leading edge devices. |
| 02/28/1989 | US4807831 Combination boundary layer control system for high altitude aircraft |
| 02/07/1989 | US4802642 Control of laminar flow in fluids by means of acoustic energy |
| 12/29/1988 | WO1988010210A1 Venturi enhanced airfoil |
| 12/06/1988 | US4789117 Vehicle adapted to be in a fluid moving downstream |
| 11/30/1988 | EP0120009B1 Shock inducing pod for causing flow separation |