ALCAN INTERNATIONAL LIMITED

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 1435
 
  
 
C22B PRODUCTION OR REFINING OF METALS 919
 
  
 
C22C ALLOYS 765
 
  
 
B01D SEPARATION 5129
 
  
 
C01F COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM, CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THE RARE-EARTH METALS 417
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 352
 
  
 
C25C PROCESSES FOR THE ELECTROLYTIC PRODUCTION, RECOVERY OR REFINING OF METALS; APPARATUS THEREFOR 316
 
  
 
G01N INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES 3203
 
  
 
B29B PREPARATION OR PRETREATMENT OF THE MATERIAL TO BE SHAPED; MAKING GRANULES OR PREFORMS; RECOVERY OF PLASTICS OR OTHER CONSTITUENTS OF WASTE MATERIAL CONTAINING PLASTICS 225
 
  
 
C01B NON-METALLIC ELEMENTS; COMPOUNDS THEREOF277

Top Patents (by citation)

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Recent Publications

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
8252128 Aluminum alloy and extrusionMar 14, 08Aug 28, 12[C22F]
D662521 Mixing rotorAug 24, 10Jun 26, 12[1503]
7781071 Aluminum alloy tube and fin assembly for heat exchangers having improved corrosion resistance after brazingDec 22, 03Aug 24, 10[F28F, B32B]
7666248 Method of priming filter for molten metalFeb 23, 05Feb 23, 10[C22B]
7562692 Aluminum alloy-boron carbide composite materialOct 24, 03Jul 21, 09[B22D]
7550029 C composite materialsApr 21, 05Jun 23, 09[C22B]
7472613 Device and method for measuring metal inclusionsApr 22, 04Jan 06, 09[G01N]
7473376 Apparatus for production, withdrawal and transfer of highly viscous slurryAug 22, 06Jan 06, 09[B01D]
7448153 Container label with tear-off partMar 17, 04Nov 11, 08[G09F]
7140419 Semi-solid concentration processing of metallic alloysJun 20, 02Nov 28, 06[B22D]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2011/0139,267 System and Apparatus for Controlled SiphoningAbandonedDec 15, 10Jun 16, 11[F16K, F16L]
7927518 precursor mixtureExpiredNov 01, 07Apr 19, 11[C01B, H01B]
7785497 High swelling ramming paste for aluminum electrolysis cellExpiredJan 29, 07Aug 31, 10[C25C]
2010/0092,748 METHOD OF MANUFACTURING ALUMINIUM NITRIDEAbandonedAug 03, 07Apr 15, 10[C01B, B32B]
2010/0087,286 PNEUMATIC BASE FOR FACILITATING THE INSTALLATION AND TENSIONING OF A DRIVE BELTAbandonedDec 11, 09Apr 08, 10[F16H]
7588134 Deformable/inflatable wear linerExpiredJul 19, 07Sep 15, 09[B65G]
2009/0023,526 PNEUMATIC BASE FOR FACILITATING THE INSTALLATION AND TENSIONING OF A DRIVE BELTAbandonedJul 19, 07Jan 22, 09[F16H]
7462271 Stabilizers for titanium diboride-containing cathode structuresExpiredNov 26, 03Dec 09, 08[C25B]
2008/0299,001 ALUMINUM ALLOY FORMULATIONS FOR REDUCED HOT TEAR SUSCEPTIBILITYAbandonedMay 27, 08Dec 04, 08[C22F, C22C]
2008/0056,931 Aluminum Alloy And Brazing Sheet Manufactured TherefromAbandonedMar 30, 07Mar 06, 08[C22C]
2008/0050,270 Neutron Absorption Effectiveness for Boron Content Aluminum MaterialsAbandonedApr 21, 05Feb 28, 08[C22B, G21F, C22C]
7186357 High swelling ramming paste for aluminum electrolysis cellExpiredMar 12, 03Mar 06, 07[C25C]
7147768 Electrochemical scale inhibitionExpiredAug 15, 02Dec 12, 06[C23F]
7036097 Method for designing a cascade of digital filters for use in controling an electrolysis cellExpiredNov 30, 04Apr 25, 06[G06F]
6939417 Aluminum alloys having high corrosion resistance after brazingExpiredMar 06, 01Sep 06, 05[0000]
2005/0166,657 Production of aluminum alloy sheet products in multi-product hot millsAbandonedJan 29, 04Aug 04, 05[B21B]
6866767 Process for controlling anode effects during the production of aluminumExpiredOct 23, 02Mar 15, 05[C25C]
2005/0034,531 Process for measuring the tension in a metal stripAbandonedSep 29, 04Feb 17, 05[G01N]
2005/0015,978 Method and apparatus for producing stranded aluminum cablesAbandonedJul 21, 03Jan 27, 05[H01R]
2005/0011,754 Device for separating baked anodesAbandonedJul 09, 04Jan 20, 05[C25B]

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