Assignee
SOUTH DAKOTA SCHOOL OF MINES &
US·3 granted patents·84 citations·filing 1990–2005
Top patents by PatentIndex Score
3 records- 0188US5308381AAmmonia extraction of gold and silver from ores and other materialsSOUTH DAKOTA SCHOOL OF MINES &·Filed 1993·Granted May 3, 1994·42 cites·10 claims
- 0287US5114687AAmmonia extraction of gold and silver from ores and other materialsSOUTH DAKOTA SCHOOL OF MINES &·Filed 1990·Granted May 19, 1992·39 cites·12 claims
- 0360US7790653B2Method and composition to reduce the amounts of arsenic in waterSOUTH DAKOTA SCHOOL OF MINES &·Filed 2005·Granted Sep 7, 2010·3 cites·23 claims
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