Assignee
698638 ALBERTA LTD
CA·4 granted patents·111 citations·filing 1995–1996
Top patents by PatentIndex Score
4 records- 0190US5730776AHydrometallurgical process for the extraction of copper from sulphidic concentrates698638 ALBERTA LTD·Filed 1996·Granted Mar 24, 1998·59 cites·45 claims
- 0273US5770170ARecovery of zinc from sulphidic concentrates698638 ALBERTA LTD·Filed 1996·Granted Jun 23, 1998·29 cites·6 claims
- 0351US5711929APurification of elemental sulphur698638 ALBERTA LTD·Filed 1995·Granted Jan 27, 1998·15 cites·8 claims
- 0450US5651947ARecovery of zinc from sulphidic concentrates698638 ALBERTA LTD·Filed 1995·Granted Jul 29, 1997·8 cites·16 claims
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