| Patents for B64C 31 - Aircraft intended to be sustained without power plant; Powered hang-glider-type aircraft; Microlight-type aircraft (1,264) |
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| 11/24/1987 | US4708078 Propulsive wing with inflatable armature |
| 11/17/1987 | US4706907 Aircraft |
| 10/22/1987 | DE3613114A1 Ultralight aircraft having spraying arms |
| 10/15/1987 | DE3608486A1 Hang glider |
| 08/18/1987 | US4688022 Safety device for hang glider |
| 08/11/1987 | CA1225381A1 Free flyable structure |
| 07/16/1987 | WO1987004133A1 Torpedo recovery device |
| 06/16/1987 | EP0225346A1 Motorized ultra-light flying craft with retractable propeller |
| 05/26/1987 | US4667898 Aircraft with single surface membranous airfoils |
| 05/20/1987 | EP0222263A1 Inflatable airfoil |
| 05/20/1987 | EP0221966A1 Hang-glider |
| 05/05/1987 | US4662582 Lightweight aircraft |
| 04/14/1987 | US4657207 Kit for converting a motorcycle to an airborne vehicle |
| 04/08/1987 | EP0217686A1 Aircraft of the parawing type |
| 03/25/1987 | EP0215017A1 Convertible airplane |
| 03/24/1987 | US4651665 Hand sail |
| 03/04/1987 | EP0104163B1 Aircraft without engine |
| 02/12/1987 | DE3527927A1 Oscillating drive system |
| 01/02/1987 | DE3522039A1 Light aircraft with a motorcycle engine |
| 12/18/1986 | WO1986007329A1 Motorized ultra-light flying craft with retractable propeller |
| 12/16/1986 | US4629148 Apparatus for aerial scattering |
| 11/26/1986 | EP0202271A1 Propulsive wing with inflatable armature. |
| 11/25/1986 | US4624425 Fixed wing light aircraft |
| 11/20/1986 | WO1986006699A1 Hang-glider |
| 11/18/1986 | US4623108 Airplane |
| 09/24/1986 | CN85106994A Aerodynamic device |
| 09/17/1986 | EP0194914A1 Device to assist the control system of a flying wing aircraft, in particular for modifying its wing area distribution |
| 09/16/1986 | US4611774 Propeller drive assembly |
| 08/28/1986 | WO1986004836A1 Convertible airplane |
| 08/26/1986 | US4607814 Ballistic recovery system |
| 08/26/1986 | US4607811 Propulsion unit for hang glider type aircraft, and aircraft fitted with the propulsion unit |
| 08/19/1986 | US4606518 Space spinner |
| 07/22/1986 | US4601443 Free flyable structure |
| 07/17/1986 | EP0174370A4 Ultra light aircraft with freely rotating rigid wing. |
| 07/15/1986 | US4600170 Tandem seat for ultra light aircraft |
| 06/24/1986 | US4596368 Ultralight aircraft with freely rotating wing |
| 05/27/1986 | US4591111 Thermal navigator |
| 05/22/1986 | WO1986002902A1 Propulsive wing with inflatable armature |
| 04/16/1986 | EP0178206A1 Conception of a twin engine ULM |
| 04/02/1986 | EP0175739A1 Flex wing apparatus. |
| 04/01/1986 | US4579301 Lightweight aircraft |
| 03/19/1986 | EP0174370A1 Ultra light aircraft with freely rotating rigid wing. |
| 02/04/1986 | US4568043 Ultra-light aircraft with freely rotating rigid wing |
| 01/07/1986 | US4562981 Parachute and hang glider safety device |
| 12/24/1985 | US4560119 Lightweight aircraft |
| 11/21/1985 | WO1985005086A1 Aerodynamic devices |
| 10/22/1985 | US4548371 Ultralight aircraft |
| 10/15/1985 | US4546938 Power unit for hang-gliders |
| 10/10/1985 | WO1985004377A1 Flex wing apparatus |
| 10/01/1985 | CA1194455A1 Apparatus for aerial scattering |
| 09/26/1985 | WO1985004148A1 Ultra light aircraft with freely rotating rigid wing |
| 07/24/1985 | EP0148897A1 Dismountable wing structure for ultra-light aircraft |
| 07/23/1985 | US4530477 Fluttering kite |
| 06/12/1985 | EP0144278A1 Improvements in kites |
| 04/30/1985 | US4513932 Rigid multi-cone kite |
| 04/03/1985 | EP0135501A1 Free flyable structure |
| 03/26/1985 | US4506847 Thermalling sailplane turn indicator |
| 02/19/1985 | US4500053 Propeller and engine mounting device |
| 02/05/1985 | CA1182092A1 Lightweight aircraft |
| 01/31/1985 | WO1985000337A1 Dismountable wing structure for ultra-light aircraft |
| 01/09/1985 | EP0130925A1 Powered airfoil canopy aircraft |
| 12/12/1984 | EP0127652A1 Air craft structure for take-off and landing on the feet of the pilot. |
| 12/04/1984 | US4486669 Wind generator kite system |
| 11/07/1984 | EP0089967A4 A thermalling sailplane turn indicator. |
| 09/13/1984 | WO1984003479A1 Powered airfoil canopy aircraft |
| 09/04/1984 | US4469296 Fishing kite |
| 07/03/1984 | US4457478 Keel guided acrobatic kite and control apparatus therefor |
| 06/07/1984 | WO1984002115A1 Air craft structure for take-off and landing on the feet of the pilot |
| 05/30/1984 | EP0109906A1 Ultralight glider and sail for the same |
| 05/30/1984 | EP0109448A1 Glider with a variable lift-to-drag ratio |
| 05/01/1984 | US4445654 Aircraft recovery chute |
| 04/12/1984 | WO1984001346A1 Free flyable structure |
| 04/04/1984 | EP0104163A1 Aircraft without engine. |
| 03/13/1984 | US4436264 Flying device |
| 01/10/1984 | US4424946 Lightweight aircraft |
| 01/10/1984 | US4424945 Parafoil |
| 11/29/1983 | US4417707 Human powered hang glider |
| 11/15/1983 | US4415133 Solar powered aircraft |
| 11/15/1983 | US4415131 Arc wing aircraft |
| 10/13/1983 | WO1983003395A1 Aircraft without engine |
| 10/05/1983 | EP0089967A1 A thermalling sailplane turn indicator |
| 09/13/1983 | US4403755 Method and apparatus for use in harnessing solar energy to provide initial acceleration and propulsion of devices |
| 08/16/1983 | US4398684 Connecting apparatus for a powerplant |
| 05/10/1983 | US4382566 Lightweight aircraft |
| 04/20/1983 | EP0076954A1 Hand-held sail |
| 04/12/1983 | USRE31205 Aerial sled |
| 04/05/1983 | CA1144134A1 Lightweight aircraft |
| 03/31/1983 | WO1983001050A1 A thermalling sailplane turn indicator |
| 03/01/1983 | US4375280 Free wing flyer |
| 02/22/1983 | CA1141737A1 Aerofoil structure |
| 02/16/1983 | EP0072343A1 Aircraft |
| 02/08/1983 | US4372506 Landing gear for ultralight aircraft |
| 01/25/1983 | US4369939 Article dropping kite |
| 12/14/1982 | US4363458 Airfoil structure |
| 09/29/1982 | EP0061370A1 Apparatus for aerial dispensing |
| 08/24/1982 | US4345401 Glider |
| 06/29/1982 | US4336915 Construction for whistling and sparkling keel kite |
| 06/29/1982 | US4336913 Compound wing aircraft |
| 03/09/1982 | CA1119577A1 Controllable kite |
| 07/28/1981 | US4280673 Glider |