| Patents for B64C 11 - Propellers, e.g. of ducted type; Features common to propellers and rotors for rotorcraft (3,644) |
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| 05/06/2004 | WO2003102599A8 Device for detecting impacts on an aeronautic propeller |
| 05/04/2004 | US6729839 Toroidal and compound vortex attractor |
| 04/29/2004 | US20040080234 Permanent magnet alternator for a gas turbine engine |
| 04/28/2004 | EP1115613B1 Load-bearing structure with reduced tip vortex |
| 04/22/2004 | WO2004033295A1 Vertical take-off and landing aircraft |
| 04/22/2004 | CA2551027A1 Vertical take-off and landing aircraft |
| 04/20/2004 | US6722847 Fan for a turbofan gas turbine engine |
| 04/15/2004 | US20040069145 Vortex vacuum cleaner nozzle with means to prevent plume formation |
| 04/13/2004 | US6719830 Toroidal vortex vacuum cleaner centrifugal dust separator |
| 03/31/2004 | CN1485535A Aircraft gas turbine engine with tandem non-interdigitated counter rotating low pressure turbines |
| 03/30/2004 | US6712314 Method for the control of aero gas turbine engines |
| 03/30/2004 | US6711887 Aircraft gas turbine engine with tandem non-interdigitated counter rotating low pressure turbines |
| 03/17/2004 | EP1397290A1 Variable pitch propeller control system |
| 03/11/2004 | WO2004020280A1 Propeller, propeller propulsion system and vessel comprising propulsion system |
| 03/11/2004 | WO2004020279A1 Propeller, propeller propulsion system and vessel comprising propulsion system |
| 03/11/2004 | WO2004020278A1 Propeller, propeller propulsion system and vessel comprising propulsion system |
| 03/04/2004 | DE10238718A1 Aufklärungseinrichtung Enlightenment means |
| 03/03/2004 | EP1394385A1 Aircraft gas turbine engine with tandem non-interdigitated counter rotating low pressure turbines |
| 02/26/2004 | US20040035098 Engine arrangement |
| 02/25/2004 | EP1391381A1 Reconnaissance system |
| 02/19/2004 | US20040031267 Control system for a turbo-charged diesel aircraft engine |
| 02/19/2004 | US20040031260 Aircraft gas turbine engine with tandem non-interdigitated counter rotating low pressure turbines |
| 02/12/2004 | US20040026563 Vertical take-off and landing vehicles |
| 02/12/2004 | US20040025505 Turbocharger control system and propeller control system by stepper motor |
| 02/10/2004 | US6689225 Toroidal vortex vacuum cleaner with alternative collection apparatus |
| 02/10/2004 | US6687951 Toroidal vortex bagless vacuum cleaner |
| 02/05/2004 | WO2004011330A1 Hydrodynamically and aerodynamically optimized leading edge structure for propellers, wings, and airfoils |
| 02/05/2004 | WO2003066429A3 Improved vertical take-off and landing vehicles |
| 02/05/2004 | US20040022635 Hydrodynamically and aerodynamically optimized leading edge structure for propellers, wings, and airfoils |
| 01/29/2004 | WO2004009723A2 Low light level illumination for rotating objects |
| 01/29/2004 | US20040018089 Vortex attractor |
| 01/28/2004 | EP1384896A2 Method and apparatus for modulating airfoil lift |
| 01/22/2004 | US20040011923 Efficient wings |
| 01/22/2004 | US20040011922 Lift generator by continuously rotating impeller |
| 01/15/2004 | US20040007080 Fuselage pitot-static tube |
| 01/13/2004 | US6676080 Composite airfoil assembly |
| 01/13/2004 | US6676079 Passenger aircraft |
| 01/08/2004 | WO2004002821A1 Ducted air power plant |
| 01/08/2004 | CA2490886A1 Ducted air power plant |
| 01/07/2004 | EP1377501A1 Aerodynamic article with protective coating and method of bonding metal to polyurethane |
| 01/07/2004 | EP0999977B1 Flying vehicle with lift generators |
| 01/06/2004 | US6672835 Method and apparatus for self-contained variable pitch and/or constant speed propeller including provisions for feathering and reverse pitch operation |
| 12/25/2003 | US20030235495 Fan assembly for use in powered airborne vehicles |
| 12/23/2003 | US6666651 Composite propeller blade with unitary metal ferrule and method of manufacture |
| 12/23/2003 | US6666650 Wind power facility with a verticle rotor |
| 12/18/2003 | WO2003104821A1 Device for detecting impacts on aeronautic propeller blades |
| 12/18/2003 | DE20315369U1 Propeller with a casing ring for an air or water vehicle has electromagnetic drive with stator to produce alternating electromagnetic fields |
| 12/11/2003 | WO2003102599A1 Device for detecting impacts on an aeronautic propeller |
| 12/10/2003 | CN2590867Y Double-propeller helicopter |
| 12/04/2003 | WO2003099653A1 Aircraft for vertical take of and landing |
| 12/02/2003 | US6655915 Drive system for the retraction/extension of variable diameter rotor systems |
| 11/27/2003 | WO2003097452A1 Closed wing |
| 11/26/2003 | EP1159533B1 Centrifugal air flow control |
| 11/06/2003 | WO2003091570A1 Device for adjusting a rotor blade of a wind energy turbine |
| 11/06/2003 | WO2003091100A1 Propeller with interactive blades |
| 11/06/2003 | WO2003033344A3 Vertical lift flying craft with suspended payload |
| 11/06/2003 | US20030206802 Drive system for the retraction/extension of variable diameter rotor systems |
| 11/05/2003 | CN2584510Y Axial flow impeller with curve shape blade-tip |
| 10/29/2003 | EP1357254A2 Axial retention system and components thereof for a bladed rotor |
| 10/28/2003 | US6638017 Constant rotational speed propeller for model aircrafts |
| 10/28/2003 | US6637202 Turbocharger control system and propeller control system by stepper motor |
| 10/16/2003 | US20030194318 Axial retention system and components thereof for a bladed rotor |
| 10/08/2003 | CN1123486C Airplane with fuselage designed as air static floating body |
| 10/07/2003 | US6629674 Method and apparatus for modulating airfoil lift |
| 10/02/2003 | WO2003080430A1 Actuation system for a controllable pitch propeller |
| 09/25/2003 | WO2003078248A1 Permanent magnet alternator for a gas turbine engine |
| 09/25/2003 | US20030180146 Actuation system for a controllable pitch propeller |
| 09/23/2003 | US6623352 Vortex air barrier |
| 09/18/2003 | US20030175120 Aqua / atmos propellor jet |
| 09/17/2003 | EP1343688A2 Offset crowned roller assembly for variable pitch propellers |
| 09/17/2003 | CN2573373Y Human body controlled flying knapsack helicopter |
| 09/16/2003 | US6619922 Vortex attractor for planar and non-planar surfaces |
| 09/11/2003 | US20030168552 Aircraft propulsion system and method |
| 09/11/2003 | US20030167741 Combined toroidal and cylindrical vortex dust separator |
| 09/09/2003 | US6616094 Lifting platform |
| 09/04/2003 | DE20301041U1 Fluid drive has fluid corrector co-axial with inductor, with at least one correcting vane in supplied flow |
| 09/03/2003 | CN1439578A 多功能飞机及其应用 Versatile aircraft and its application |
| 09/03/2003 | CN1439574A Helicopter composite paddle rotor systems |
| 09/02/2003 | CA2109608C Propulsive thrust ring system |
| 08/28/2003 | DE20308350U1 Blade pitch adjustment system for propellers of ships and windmills for generating power has spiral spring loaded by transmitted torque and connected to nut on threaded shaft |
| 08/27/2003 | CN1119662C Fuselage pilot-static tube |
| 08/26/2003 | US6611748 Engine synchronization system |
| 08/21/2003 | US20030156944 Composite propeller blade with unitary metal ferrule and method of manufacture |
| 08/21/2003 | US20030154949 Oil receiver |
| 08/19/2003 | US6607354 Inductive rotary joint message system |
| 08/19/2003 | US6607168 Bearing structure with reduced tip vortex |
| 08/14/2003 | WO2003066429A2 Improved vertical take-off and landing vehicles |
| 08/14/2003 | US20030150198 Filterless folded and ripple dust separators and vacuum cleaners using the same |
| 08/06/2003 | EP1177381B1 Wind power facility with a vertical rotor |
| 08/05/2003 | US6602054 Fluid motor apparatus for amplifying thrust |
| 07/24/2003 | US20030139915 Grid convergence solution computation system |
| 07/24/2003 | US20030136094 Axial flow centrifugal dust separator |
| 07/22/2003 | US6595753 Vortex attractor |
| 07/22/2003 | CA2279246C Fuselage pitot-static tube |
| 07/17/2003 | US20030133800 Vortex attractor for planar and non-planar surfaces |
| 07/17/2003 | US20030132152 Vortex pool cleaner |
| 07/16/2003 | CN1429737A Hydrodynamic machine |
| 07/15/2003 | US6592073 Amphibious aircraft |
| 07/10/2003 | WO2003056139A1 A single or multiple bladed rotor |
| 07/08/2003 | US6588285 Fuselage pitot-static tube and the aerodynamic profile of its strut |