ALUMINUM COMPANY, PITTSBURGH, COUNTY OF ALLEGHENY, A CORP. OF PA

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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 247
 
  
 
C22C ALLOYS 171
 
  
 
C22F CHANGING THE PHYSICAL STRUCTURE OF NON-FERROUS METALS OR NON-FERROUS ALLOYS 136
 
  
 
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
5399212 High strength titanium-aluminum alloy having improved fatigue crack growth resistanceApr 23, 92Mar 21, 95[C22C]
5279715 Process and apparatus for low temperature electrolysis of oxidesSep 17, 91Jan 18, 94[C25C]
5259436 Fabrication of metal matrix composites by vacuum die castingApr 08, 91Nov 09, 93[B22D]
5232042 Mold for casting metal ingot sows and methodFeb 18, 92Aug 03, 93[B22D]
5213639 Damage tolerant aluminum alloy products useful for aircraft applications such as skinMar 06, 92May 25, 93[C22F]

Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
5316985 Suppression of crystal growth in low dielectric inorganic composition using ultrafine aluminaExpiredDec 09, 91May 31, 94[C03C]
5232113 Venting resealable container closure and associated method of manufactureExpiredOct 11, 91Aug 03, 93[B65D]
5227143 Process for the removal of salts from aluminum drossExpiredSep 26, 91Jul 13, 93[C22B, C01D]
5225249 Water-microemulsifiable lubricant for aluminum alloy performsExpiredJul 19, 91Jul 06, 93[B05D]
5222545 Method and apparatus for casting a plurality of closely-spaced ingots in a static magnetic fieldExpiredApr 21, 92Jun 29, 93[B22D]
5221377 Aluminum alloy product having improved combinations of propertiesExpiredMay 17, 91Jun 22, 93[C22C]
5209838 Purification of an oil-containing liquid using a surface treated permeable inorganic membraneExpiredOct 07, 91May 11, 93[C10M, C10G, B01D]
5194202 Formation of ceramic-metal composite by pressure casting and oxidation sinteringExpiredSep 12, 91Mar 16, 93[C04B, B22D]
5186767 Lithoplate and method for making sameExpiredJan 07, 91Feb 16, 93[C22F]
5178260 Pallet for drying ceramic cardsExpiredFeb 26, 91Jan 12, 93[B65G]
5176763 Method for making lithoplate having improved grainabilityExpiredJul 01, 91Jan 05, 93[C22F]
5171074 Low inertia track laying wheelExpiredJul 11, 91Dec 15, 92[B62D]
5162065 Aluminum alloy suitable for pistonsExpiredOct 02, 91Nov 10, 92[C22C]
5158124 Double-end round top component cut-off sawExpiredOct 04, 91Oct 27, 92[B27B]
5133401 Continuous casting machine with mold block assemblies interlinked by elastic hingesExpiredMar 25, 91Jul 28, 92[B22D]
5037795 Chromatographic packing material comprising extended area metal oxide/hydroxide particles with a layer of a phosphorus-containing material thereonExpiredOct 31, 88Aug 06, 91[B01J, B01D, B32B]
4882017 Method and apparatus for making light metal-alkali metal master alloy using alkali metal-containing scrapExpiredJun 20, 88Nov 21, 89[C25C]
4874440 Superplastic aluminum products and alloysExpiredAug 14, 87Oct 17, 89[C22F]
4836998 Production of partially calcined carbonaceous reductant using steamExpiredDec 21, 84Jun 06, 89[C09C]
4811582 Strain rate control of superplastic formingExpiredDec 21, 87Mar 14, 89[B21D]

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