Assignee
KORTEC AG
CH·15 granted patents·154 citations·filing 1985–1996
Top patents by PatentIndex Score
15 records- 0172US5730763AHeat exchanger and apparatus for gasification and/or reformingKORTEC AG·Filed 1996·Granted Mar 24, 1998·34 cites·17 claims
- 0268US4949940ACharging arrangement for shaft furnaces, in particular blast furnacesKORTEC AG·Filed 1989·Granted Aug 21, 1990·11 cites·8 claims
- 0368US4852858ACharging material preheater for preheating charging material for a metallurgical smelting unitKORTEC AG·Filed 1988·Granted Aug 1, 1989·27 cites·17 claims
- 0461US4881972AProcess for feeding heat energy into a molten metal bathKORTEC AG·Filed 1988·Granted Nov 21, 1989·11 cites·23 claims
- 0556US4586897AInstallation including a heating furnace for continuous castings, which are cut to length, from a continuous casting installationKORTEC AG·Filed 1985·Granted May 6, 1986·9 cites·10 claims
- 0653US5580362AProcess for gasification and/or reformingKORTEC AG·Filed 1995·Granted Dec 3, 1996·16 cites·28 claims
- 0751US5403378AMethod and apparatus for protecting an injection device disposed in a hot blast conduit of a blast furnaceKORTEC AG·Filed 1993·Granted Apr 4, 1995·8 cites·11 claims
- 0846US5371759AD.C. furnace with a hearth electrode, hearth electrode and electrode block, as well as process for operating said furnaceKORTEC AG·Filed 1992·Granted Dec 6, 1994·12 cites·15 claims
- 0943US5201941AProcess for introducing additive substances which are capable of flow into a metallurgical vessel and a vessel for that processKORTEC AG·Filed 1990·Granted Apr 13, 1993·5 cites·16 claims
- 1043US4736930AClosure apparatus for a tap holeKORTEC AG·Filed 1985·Granted Apr 12, 1988·5 cites·12 claims
- 1141US5465942ATuyere arrangement for the introduction of agents into a molten bath and method of operating such a tuyere arrangementKORTEC AG·Filed 1992·Granted Nov 14, 1995·6 cites·18 claims
- 1241US5451246AProcess and device for heating and melting lumps of sponge ironKORTEC AG·Filed 1993·Granted Sep 19, 1995·4 cites·16 claims
- 1337US5571475AReducing and smelting furnace having filter layerKORTEC AG·Filed 1994·Granted Nov 5, 1996·2 cites·13 claims
- 1433US5364448AProcess for the production of liquid metal from fine-grain metal oxide particles and reducing and smelting furnace for carrying out the processKORTEC AG·Filed 1992·Granted Nov 15, 1994·1 cites·16 claims
- 1532US4687440AApparatus for heating charging materialKORTEC AG·Filed 1985·Granted Aug 18, 1987·3 cites·10 claims
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