C05B 13/02

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Patent/Pub #TitleFiling DateIssue/Publication DatePatent Owner
9422202 Molten phosphorus-potassium fertilizer, and its preparation processSep 12, 12Aug 23, 16MINERAÇÃO CURIMBABA LTDA.
5510976 Control systemFeb 08, 94Apr 23, 96HITACHI, LTD.
5094680 Zeolite-activated guano phosphates and a method for producing the sameApr 03, 91Mar 10, 92Not available
4834787 Phosphate rock utilizationApr 03, 87May 30, 89PIRCON, DOLORES R., 305 CANTERBERRY LANE, OAK BROOK, IL 60521, TRUSTEE, DOLORES R. PIRCON STOCK AND PATENT TRUST UNDER DECLARATION OF TRUST DATED JUNE 26, 1990.
4324577 Method and apparatus for beneficiating phosphate oresFeb 25, 80Apr 13, 82Beker Industries, Inc.