Assignee
HEEREMA ENGINEERING
NL11 patents
Top patents by PatentIndex Score
US4744697AMay 17, 1988
Installation and removal vessel
HEEREMA ENGINEERING81 citations93
US4687380AAug 18, 1987
Tower structure and methods of fabricating such a structure
HEEREMA ENGINEERING54 citations87
US4557629ADec 10, 1985
Offshore tower structures
HEEREMA ENGINEERING19 citations76
US4828430AMay 9, 1989
Control system
HEEREMA ENGINEERING23 citations75
US4824291AApr 25, 1989
Offshore tower structures
HEEREMA ENGINEERING13 citations71
US5004108AApr 2, 1991
Cranes
HEEREMA ENGINEERING12 citations69
US4607983AAug 26, 1986
Method of constructing an offshore tower structure
HEEREMA ENGINEERING10 citations68
US4483563ANov 20, 1984
Device for handling an object such as a pipe or pile
HEEREMA ENGINEERING15 citations66
US4898288AFeb 6, 1990
Semi-submersible crane vessel
HEEREMA ENGINEERING18 citations60
US4898289AFeb 6, 1990
Method of handling a load with a crane vessel having movable load supports
HEEREMA ENGINEERING7 citations58
US4675931AJun 30, 1987
Gangway assembly
HEEREMA ENGINEERING6 citations46