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Class Information
Number: 244/101
Name: Aeronautics > Landing gear > Amphibian
Description: Landing gear designed to permit aircraft to land on either land or water at will. This includes landing gear having one type retractable to permit use of the other type.

Patents under this class:

Patent Number Title Of Patent Date Issued
8480443 All season air propelled watercraft Jul. 9, 2013
8430355 Amphibious aircraft Apr. 30, 2013
8430356 Amphibious aircraft Apr. 30, 2013
8272596 Amphibious aircraft Sep. 25, 2012
8131406 Piston engine aircraft automated pre-flight testing Mar. 6, 2012
7874514 Amphibious aircraft Jan. 25, 2011
7699262 Detachable hydrofoil trim tabs for use with seaplane floats for assisting with lower speed on-plane condition and stability during step turning/chine walk manuevers Apr. 20, 2010
7552895 System, apparatus and method to improve the aerodynamics of a floatplane Jun. 30, 2009
7350751 Anti-flip landing gear for aircraft Apr. 1, 2008
7188804 Float retractable landing gear Mar. 13, 2007
7156033 Inflating aircraft flotation device Jan. 2, 2007
7063291 Amphibian delta wing jet aircraft Jun. 20, 2006
7040573 Landplane to flying boat conversion May. 9, 2006
6974107 Thrust reverser system actuator having an integral torque limiter Dec. 13, 2005
6866224 Seaplane with retractable twin floats Mar. 15, 2005
6644592 Floatation system Nov. 11, 2003
6042052 Retractable step fairing for amphibian airplane Mar. 28, 2000
5944282 Landing shock absorber Aug. 31, 1999
5850990 Multi-purpose aircraft Dec. 22, 1998
5765778 Flight vehicle with a safety device Jun. 16, 1998
5645250 Multi-purpose aircraft Jul. 8, 1997
5570857 Hinged aircraft ski for improving egress and ingress from an aircraft cabin Nov. 5, 1996
5415365 High performance amphibious aircraft May. 16, 1995
5181674 Wind driven craft Jan. 26, 1993
5065958 Helicopter soft snow landing aid Nov. 19, 1991
5000400 Four-post wing-stowed main landing gear for high speed aircraft Mar. 19, 1991
4905938 Special purpose robotic end effector Mar. 6, 1990
4838194 Amphibious vehicle having an efficient water-borne operational mode Jun. 13, 1989
4799630 Landing attachment to aircraft for amphibious landing Jan. 24, 1989
4697762 Inflatable float assembly and undercarriage for aircraft Oct. 6, 1987
4691881 High performance amphibious airplane Sep. 8, 1987
4685641 Transient air and surface contact vehicle Aug. 11, 1987
4660670 Wing-in-ground effect air cushion vehicle Apr. 28, 1987
4516124 Convertible amphibious aircraft wheel position warning system May. 7, 1985
4298175 Airplane wing and undercarriage construction Nov. 3, 1981
4165059 Float assembly for a helicopter or the like Aug. 21, 1979
4027835 Airplane Jun. 7, 1977
3981462 Air-cushion landing gear for aircraft Sep. 21, 1976

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