Falconbridge 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 226
 
  
 
B03D FLOTATION; DIFFERENTIAL SEDIMENTATION 114
 
  
 
C25B ELECTROLYTIC OR ELECTROPHORETIC PROCESSES FOR THE PRODUCTION OF COMPOUNDS OR NON- METALS; APPARATUS THEREFOR 134

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
7306706 Method and apparatus for stripping electrodeposited metal sheets from permanent cathodesJan 21, 04Dec 11, 07[C25B]
5411148 Selective flotation process for separation of sulphide mineralsJun 28, 93May 02, 95[B03D]
5382278 Pretreatment of chromium-bearing metal scrap to remove chromiumAug 26, 93Jan 17, 95[C22B]
5240496 Pretreatment of chromium-bearing metal scrap to remove chromiumOct 07, 92Aug 31, 93[C22B]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2007/0034,053 Production of active nickel powder and transformation thereof into nickel carbonylAbandonedApr 27, 04Feb 15, 07[B22F, C01G]
2006/0107,792 Method for producing fine, low bulk density, metallic nickel powderAbandonedNov 19, 04May 25, 06[B22F]
2006/0096,075 Clinching tool, die and method for use thereofAbandonedNov 08, 04May 11, 06[B23Q, B21D]
7014036 Cathode linear conveyer assemblyExpiredNov 27, 02Mar 21, 06[B65G]
6843976 Reduction of zinc oxide from complex sulfide concentrates using chloride processingExpiredFeb 27, 01Jan 18, 05[C01G, B01D]
2004/0115,532 Zinc powders for use in electrochemical cellsAbandonedAug 05, 03Jun 17, 04[H01M, B22F, C22C]
5693692 Depressant for flotation separation of polymetallic sulphide oresExpiredMay 09, 94Dec 02, 97[C08L]
5149410 Cathode stripping apparatusExpiredOct 16, 90Sep 22, 92[C25D]
4952329 Separation of polymetallic sulphides by froth flotationExpiredAug 29, 89Aug 28, 90[B03D, C07G, C08B]
4930595 Method and apparatus for determining the profile of a subterranean passageExpiredOct 14, 87Jun 05, 90[G01V]
4882027 Cathode hangersExpiredFeb 06, 87Nov 21, 89[C25C]
4880529 Separation of polymetallic sulphides by froth flotationExpiredMay 11, 88Nov 14, 89[B03D]
4828809 Separation of nickel from copper in autoclaveExpiredApr 24, 86May 09, 89[C01G]
4814004 Non-ferrous metal recoveryExpiredMay 29, 87Mar 21, 89[C22B]
4786375 Manufacture of self supporting members of copper containing phosphorusExpiredJul 21, 87Nov 22, 88[C25D]
4735783 Process for increasing the selectivity of mineral flotationExpiredApr 22, 87Apr 05, 88[B03D]
4540056 Cutter assemblyExpiredMay 03, 84Sep 10, 85[E21B]
4410498 Acid leaching of nickel from serpentinic laterite oresExpiredOct 16, 81Oct 18, 83[C22B, C01G]
4395284 Abrasion resistant machinable white cast ironExpiredJan 18, 82Jul 26, 83[C22C]

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