Newmont USA Limited

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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 219
 
  
 
C01G COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSES C01D OR C01F 633
 
  
 
B03D FLOTATION; DIFFERENTIAL SEDIMENTATION 510
 
  
 
B01D SEPARATION 1133
 
  
 
B01F MIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING 141
 
  
 
B03B SEPARATING SOLID MATERIALS USING LIQUIDS OR USING PNEUMATIC TABLES OR JIGS 18
 
  
 
B65G TRANSPORT OR STORAGE DEVICES, e.g. CONVEYERS FOR LOADING OR TIPPING; SHOP CONVEYER SYSTEMS; PNEUMATIC TUBE CONVEYERS 166
 
  
 
C10B DESTRUCTIVE DISTILLATION OF CARBONACEOUS MATERIALS FOR PRODUCTION OF GAS, COKE, TAR, OR SIMILAR MATERIALS 118
 
  
 
C12N MICRO-ORGANISMS OR ENZYMES; COMPOSITIONS THEREOF 1166
 
  
 
E21B EARTH OR ROCK DRILLING 195

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9617076 Conveyor system and method for transporting materialDec 11, 14Apr 11, 17[B65G]
9545636 Method for processing mineral material containing acid-consuming carbonate and precious metal in sulfide mineralsApr 23, 14Jan 17, 17[C22B, B03D, B03B]
8021461 Remedial heap treatmentMar 18, 05Sep 20, 11[C22B, B01F, E21B, B01D]
7947108 Precious metal recovery using thiocyanate lixiviantJun 01, 09May 24, 11[C22B]
7559973 Precious metal recovery using thiocyanate lixiviantOct 05, 07Jul 14, 09[C22B]
7537640 Precious metal recovery using thiocyanate lixiviantOct 03, 07May 26, 09[C22B]
7514050 Processing of acid-consuming mineral materials involving treatment with acidic biooxidation effluentJun 06, 05Apr 07, 09[C22B]
7285256 Precious metal recovery using thiocyanate lixiviantAug 28, 03Oct 23, 07[C22B]
7219804 Flotation processing including recovery of soluble nonferrous base metal valuesApr 01, 04May 22, 07[B03D]
6641642 High temperature pressure oxidation of ores and ore concentrates containing silver using controlled precipitation of sulfate speciesDec 21, 01Nov 04, 03[C22B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
6696283 Particulate of sulfur-containing ore materials and heap made therefromExpiredNov 09, 01Feb 24, 04[C12N]
6679383 Flotation of platinum group metal ore materialsExpiredOct 17, 02Jan 20, 04[B03D]
6576041 Method and apparatus for chemical processingExpiredSep 28, 01Jun 10, 03[C22B]
6383458 Biooxidation process for recovery of metal values from sulfur-containing ore materialsExpiredJun 02, 95May 07, 02[C22B]
5402991 Tube connector for heap leach mining, drip tube percolation system, and method for connecting sameExpiredAug 10, 94Apr 04, 95[C22B]
5244493 Biometallurgical treatment of precious metal ores having refractory carbon contentExpiredJul 02, 92Sep 14, 93[C22B]
5080294 Gyratory mantle liner assemblyExpiredSep 11, 90Jan 14, 92[B02C]
4981598 Metal sorption method using interstage screeningExpiredOct 31, 88Jan 01, 91[B01D]
4933078 Sorption vessel with internal interstage screening vesselExpiredOct 31, 88Jun 12, 90[B01D]
4923510 Treatment of refractory carbonaceous sulfide ores for gold recoveryExpiredSep 13, 89May 08, 90[C22B]
4915836 Solids dispersion transfer pump with intermediate chamberExpiredOct 31, 88Apr 10, 90[B01D]
4470845 Continuous process for copper smelting and converting in a single furnace by oxygen injectionExpiredJan 05, 83Sep 11, 84[C22B, F27D]

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