Assignee
THYSSEN PUROFER GMBH
5 granted patents·35 citations·filing 1975–1977
Top patents by PatentIndex Score
5 records- 0163US4040816AProcess for the production of sponge ironTHYSSEN PUROFER GMBH·Filed 1975·Granted Aug 9, 1977·11 cites·7 claims
- 0251US4062529AApparatus for the direct reduction of iron ore to sponge ironTHYSSEN PUROFER GMBH·Filed 1975·Granted Dec 13, 1977·7 cites·5 claims
- 0350US4108636AMethod of the direct reduction of iron oreTHYSSEN PUROFER GMBH·Filed 1977·Granted Aug 22, 1978·8 cites·6 claims
- 0450US4046555AMethod of direct reduction of iron oreTHYSSEN PUROFER GMBH·Filed 1975·Granted Sep 6, 1977·6 cites·2 claims
- 0533US4098496AApparatus for direct reduction of iron oreTHYSSEN PUROFER GMBH·Filed 1976·Granted Jul 4, 1978·3 cites·1 claims
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