SHERRITT INTERNATIONAL CORPORATION

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C22B PRODUCTION OR REFINING OF METALS 721
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 534
 
  
 
B22F WORKING METALLIC POWDER; MANUFACTURE OF ARTICLES FROM METALLIC POWDER; MAKING METALLIC POWDER 151
 
  
 
C01F COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS 120
 
  
 
C10G CRACKING HYDROCARBON OILS; PRODUCTION OF LIQUID HYDROCARBON MIXTURES, e.g. BY DESTRUCTIVE HYDROGENATION, OLIGOMERISATION, POLYMERISATION 161
 
  
 
C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 118

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8221710 Recovering metals from complex metal sulfidesFeb 04, 10Jul 17, 12[C01G]
8147781 Recovering metal values from a metalliferrous materialSep 09, 09Apr 03, 12[C01G]
7387767 Recovery of nickel, cobalt, iron, silica, zinc and copper from laterite ore by sulfuric acid leachingApr 07, 05Jun 17, 08[C22B]
6656247 Selective precipitation of manganese from magnesium-containing solutionsAug 08, 02Dec 02, 03[C22B]
6267800 Process for producing cobalt metal powder from nickel-cobalt sulphidesApr 11, 00Jul 31, 01[C22B, C01G, C01F]
6231823 Solvent extraction process for the separation of cobalt from nickel in aqueous sulphate-containing solutionsMar 27, 00May 15, 01[C22B]
5993514 Process for upgrading copper sulphide residues containing nickel and ironOct 24, 97Nov 30, 99[C22B, C01G]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0010,176 Method of Recovering Nickel or Cobalt While Mitigating CorrosionAbandonedMar 05, 14Jan 14, 16[C22B]
2010/0300,248 Recovering Metal Values from a Metalliferrous MaterialAbandonedMay 27, 09Dec 02, 10[C22B, C21B]
2010/0300,249 Recovering Metal Values from a Leach ResidueAbandonedMay 27, 09Dec 02, 10[C22B]
6949232 Producing cobalt (III) hexammine sulfate from nickel cobalt sulfidesExpiredMay 31, 02Sep 27, 05[C22B]
2005/0127,213 Modifications to the urea granulator molten spray boom to improve product qualityAbandonedDec 12, 03Jun 16, 05[A01C]
6264904 Process for recovery of cobalt by selective precipitation of cobalt-calcium double saltExpiredApr 11, 00Jul 24, 01[C22B, C01F]

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