Assignee
KORTEC AG
CH15 patents
Top patents by PatentIndex Score
US4852858AAug 1, 1989
Charging material preheater for preheating charging material for a metallurgical smelting unit
KORTEC AG27 citations92
US5730763AMar 24, 1998
Heat exchanger and apparatus for gasification and/or reforming
KORTEC AG34 citations85
US5403378AApr 4, 1995
Method and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnace
KORTEC AG8 citations73
US5371759ADec 6, 1994
D.C. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnace
KORTEC AG12 citations73
US4949940AAug 21, 1990
Charging arrangement for shaft furnaces, in particular blast furnaces
KORTEC AG11 citations73
US4586897AMay 6, 1986
Installation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installation
KORTEC AG9 citations70
US4881972ANov 21, 1989
Process for feeding heat energy into a molten metal bath
KORTEC AG11 citations66
US5580362ADec 3, 1996
Process for gasification and/or reforming
KORTEC AG16 citations65
US5451246ASep 19, 1995
Process and device for heating and melting lumps of sponge iron
KORTEC AG4 citations63
US5201941AApr 13, 1993
Process for introducing additive substances which are capable of flow into a metallurgical vessel and a vessel for that process
KORTEC AG5 citations63
US4687440AAug 18, 1987
Apparatus for heating charging material
KORTEC AG3 citations63
US5571475ANov 5, 1996
Reducing and smelting furnace having filter layer
KORTEC AG2 citations62
US4736930AApr 12, 1988
Closure apparatus for a tap hole
KORTEC AG5 citations62
US5465942ANov 14, 1995
Tuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangement
KORTEC AG6 citations52
US5364448ANov 15, 1994
Process for the production of liquid metal from fine-grain metal oxide particles and reducing and smelting furnace for carrying out the process
KORTEC AG1 citations51