AK STEEL PROPERTIES, INC.

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C21D MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE BY DECARBURISATION, TEMPERING, OR OTHER TREATMENTS 936
 
  
 
C22C ALLOYS 963
 
  
 
C23C COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL 893
 
  
 
H01F MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES 579
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 445
 
  
 
C23G CLEANING OR DE-GREASING OF METALLIC MATERIAL BY CHEMICAL METHODS OTHER THAN ELECTROLYSIS 49
 
  
 
C02F TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE 253
 
  
 
C08K USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES AS COMPOUNDING INGREDIENTS 2100
 
  
 
B08B CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL 157
 
  
 
B23K SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM 192

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0204,493 WARM ROLLING OF STEELS CONTAINING METASTABLE AUSTENITEJan 17, 17Jul 20, 17[C21D]
2017/0165,904 COMPOSITE STEELDec 09, 16Jun 15, 17[B29C, B23K]
2017/0016,087 HIGH FORMABILITY DUAL PHASE STEELJul 15, 16Jan 19, 17[C21D]
2016/0340,761 LOW ALLOY THIRD GENERATION ADVANCED HIGH STRENGTH STEELMay 20, 16Nov 24, 16[C21D, C22C]
2016/0201,159 Dual Phase Steel with Improved PropertiesJan 14, 16Jul 14, 16[C23C, C21D, C22C]
2014/0338,797 High Strength Steel Exhibiting Good Ductility and Method of Production via In-Line Heat Treatment Downstream of Molten Zinc BathMay 16, 14Nov 20, 14[C21D, C22C]
2014/0338,798 High Strength Steel Exhibiting Good Ductility and Method of Production via Quenching and Partitioning Treatment by Zinc BathMay 16, 14Nov 20, 14[C23C, C21D, C22C]
2014/0342,181 ZINC-COATED STEEL FOR PRESS HARDENING APPLICATIONS AND METHOD OF PRODUCTIONMay 16, 14Nov 20, 14[C23C, C21D]
2014/0308,448 GALVANIZED CARBON STEEL WITH STAINLESS STEEL-LIKE FINISHJun 27, 14Oct 16, 14[C23C]
2014/0065,006 Ferritic Stainless Steel with Excellent Oxidation Resistance, Good High Temperature Strength, and Good FormabilityAug 27, 13Mar 06, 14[C22C]

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Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9881720 Grain oriented electrical steel with improved forsterite coating characteristicsAug 26, 14Jan 30, 18[H01F, C21D, C22C]
9850395 Polymer coated metallic substrate and method for makingJul 06, 10Dec 26, 17[C09D, C08K]
9816163 Cost-effective ferritic stainless steelApr 02, 13Nov 14, 17[C21D, C22C]
9580831 Stainless steel pickling in an oxidizing, electrolytic acid bathSep 26, 12Feb 28, 17[B08B, C23G, C25F]
9212414 Meniscus coating apparatus and methodMay 24, 12Dec 15, 15[C23C]
8969725 Shielded cableMay 09, 12Mar 03, 15[H01R]
8505457 Contoured thickness blank for ammunition cartridgesJul 14, 11Aug 13, 13[F42B]
8128754 Ferric pickling of silicon steelNov 12, 09Mar 06, 12[C23G]
7887645 High permeability grain oriented electrical steelMay 02, 01Feb 15, 11[H01F]
7377986 Method for production of non-oriented electrical steel stripJul 27, 06May 27, 08[H01F]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2014/0065,005 Ferritic Stainless Steel with Excellent Oxidation Resistance, Good High Temperature Strength, and Good FormabilityAbandonedMar 15, 13Mar 06, 14[C22C]
2013/0025,438 Contoured Thickness Blank for Ammunition CartridgesAbandonedOct 09, 12Jan 31, 13[F42B]
2012/0219,823 GALVANIZED CARBON STEEL WITH STAINLESS STEEL-LIKE FINISHAbandonedAug 29, 11Aug 30, 12[B23P, B21D, B32B]
2005/0000,596 Method for production of non-oriented electrical steel stripAbandonedMay 14, 03Jan 06, 05[H01F]

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