Assignee
RUHR ZINK GMBH
DE·3 granted patents·46 citations·filing 1981–1990
Top patents by PatentIndex Score
3 records- 0164US5453253AMethod of reprocessing jarosite-containing residuesRUHR ZINK GMBH·Filed 1990·Granted Sep 26, 1995·27 cites·7 claims
- 0252US4789446AMethod of processing residues from the hydrometallurgical production of zincRUHR ZINK GMBH·Filed 1987·Granted Dec 6, 1988·11 cites·19 claims
- 0349US4364807AMethod of electrolytically recovering zincRUHR ZINK GMBH·Filed 1981·Granted Dec 21, 1982·8 cites·3 claims
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