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HOVERCRAFT DEV LTD

Overview
  • Total Patents
    639
About

HOVERCRAFT DEV LTD has a total of 639 patent applications. Its first patent ever was published in 1955. It filed its patents most often in United Kingdom, United States and Canada. Its main competitors in its focus markets transport, environmental technology and packaging and shipping are HOVERMARINE TRANSPORT LTD, VOSPER HOVERMARINE LTD and ACE GIKEN KK.

Patent filings in countries

World map showing HOVERCRAFT DEV LTDs patent filings in countries

Patent filings per year

Chart showing HOVERCRAFT DEV LTDs patent filings per year from 1900 to 2020

Top inventors

# Name Total Patents
#1 Cockerell Christopher Sydney 85
#2 Sydney Cockerell Christopher 43
#3 Cockerell Christopher S 39
#4 Hopkins Leslie Arthur 23
#5 Christopher Sydney Cockerell 16
#6 Bliss Denys Stanley 15
#7 Tattersall Edward Gunston 15
#8 Hopkins Leslie A 13
#9 Arthur Hopkins Leslie 13
#10 Charity Michael 10

Latest patents

Publication Filing date Title
GB1566723A Skrits for gas cushion vehicles
GB1439326A Skirts of gas cushion vehicles
US3597926A Method of restricting the flow of bodies of liquid
US3559759A Air cushion vehicles having increased roll stiffness
US3504755A Gas-cushion vehicles
IL30086D0 Means for bounding a space for receiving pressurised gas
DE1755357A1 Gas cushion vehicles and prepared guides for such vehicles
DE1755324A1 Device for carrying a load
US3526731A Flexible current collector for vehicles
US3606838A Load-supporting apparatus
GB1270653A Improved flexible dam
IL29702A Gas-cushion vehicles
GB1276292A Improvements relating to gas-cushion vehicles for operation over water
DE1556009A1 Equipment for lifting and transporting structures
GB1241544A Improvements relating to gas-cushion load-supporting apparatus
ES343460A3 Improvements in devices to limit a space in which gas is accommodated at pressure. (Machine-translation by Google Translate, not legally binding)
ES343462A1 Improvements in the construction of vehicles on gas mattress. (Machine-translation by Google Translate, not legally binding)
ES343461A3 Improvements in the construction of vehicles on air mat. (Machine-translation by Google Translate, not legally binding)
GB1236571A Improvements relating to gas-cushion vehicles
GB1234939A Improvements relating to terminals for gas-cushion vehicles