Assignee
SUMITOMO METAL MINING CO LIMIT
5 granted patents·77 citations·filing 1974–1997
Top patents by PatentIndex Score
5 records- 0179US4022686AFlotation process for copper ores and copper smelter slagsSUMITOMO METAL MINING CO LIMIT·Filed 1976·Granted May 10, 1977·33 cites·9 claims
- 0268US4029498AProcess for treating manganese nodulesSUMITOMO METAL MINING CO LIMIT·Filed 1975·Granted Jun 14, 1977·14 cites·14 claims
- 0364US4004990AProcess for separating and recovering nickel and cobaltSUMITOMO METAL MINING CO LIMIT·Filed 1974·Granted Jan 25, 1977·15 cites·8 claims
- 0451US3954448AProcess for recovering cobalt, copper, iron, nickel and arsenicSUMITOMO METAL MINING CO LIMIT·Filed 1975·Granted May 4, 1976·9 cites·15 claims
- 0532US5843290AElectrolytic polishing apparatusSUMITOMO METAL MINING CO LIMIT·Filed 1997·Granted Dec 1, 1998·6 cites·2 claims
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