Inventor
KROGSRUD HARALD
NO20 patents
⚠️ This page may combine multiple inventors who share the name “KROGSRUD HARALD”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ELKEM AS
11 patentsUS4537551AAug 27, 1985
Method and means of charging electrothermic smelting furnaces
ELKEM AS10 citations73
US4435817AMar 6, 1984
Contact assembly
ELKEM AS7 citations73
US4443879AApr 17, 1984
Electrothermical furnace
ELKEM AS3 citations62
US4438516AMar 20, 1984
Means for an electrothermal smelting furnace
ELKEM AS5 citations62
US4434496AFeb 28, 1984
Holder assembly for an electrode in an electrothermal smelting furnace
ELKEM AS3 citations62
US4417345ANov 22, 1983
Holder for an electrode
ELKEM AS3 citations62
US4375960AMar 8, 1983
Means for transporting/rotating the pot of a smelting furnace
ELKEM AS5 citations62
US4541991ASep 17, 1985
Means for processing a solid gravel like material with a fluid
ELKEM AS1 citations51
US4526224AJul 2, 1985
Means for cooling a body
ELKEM AS0 citations51
US4482317ANov 13, 1984
Apparatus for cooling a body
ELKEM AS0 citations51
US4382073AMay 3, 1983
Method for processing a solid gravel like material with a fluid
ELKEM AS1 citations51
ELKEM SPIGERVERKET AS
8 patentsUS4133657AJan 9, 1979
Apparatus for purification of gasses
ELKEM SPIGERVERKET AS32 citations92
US4238634ADec 9, 1980
Gas tight seal for electrodes in smelting furnaces
ELKEM SPIGERVERKET AS23 citations81
US4005252AJan 25, 1977
Apparatus for gas collection in open electric smelting furnaces
ELKEM SPIGERVERKET AS9 citations73
US4116830ASep 26, 1978
Method of treating wet-washed silica dust
ELKEM SPIGERVERKET AS5 citations62
US3976727AAug 24, 1976
Venturi gas scrubbers for smelting furnaces
ELKEM SPIGERVERKET AS2 citations62
US3975576AAug 17, 1976
Rotatable furnace pot including stoking means
ELKEM SPIGERVERKET AS2 citations62
US3975575AAug 17, 1976
Rotatable furnace pot for smelting furnaces
ELKEM SPIGERVERKET AS3 citations62
US4245133AJan 13, 1981
Roof for covered electric smelting furnaces
ELKEM SPIGERVERKET AS0 citations51