HYUNDAI STEEL COMPANY

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Patent Activity in the Last 10 Years

Technologies

Intl Class Technology Matters Rank in Class
 
  
 
C22C ALLOYS 1755
 
  
 
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 1332
 
  
 
H01M PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY 11143
 
  
 
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
 
  
 
B22D CASTING OF METALS; CASTING OF OTHER SUBSTANCES BY THE SAME PROCESSES OR DEVICES 643
 
  
 
B21B ROLLING OF METAL 527
 
  
 
B21D WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING 551
 
  
 
C25D PROCESSES FOR THE ELECTROLYTIC OR ELECTROPHORETIC PRODUCTION OF COATINGS; ELECTROFORMING 546
 
  
 
B21C MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES, PROFILES OR LIKE SEMI-MANUFACTURED PRODUCTS OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL417
 
  
 
B32B LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM4153

Top Patents (by citation)

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Recent Publications

Publication # Title Filing Date Pub Date Intl Class
2017/0298,487 HIGH STRENGTH SPRING STEEL HAVING EXCELLENT CORROSION RESISTANCENov 03, 16Oct 19, 17[C22C]
2017/0211,160 PULVERIZED COAL FOR PIG-IRON MAKING COMPRISING COW MANURE, AND PIG-IRON PRODUCTION METHOD USING SAMEMar 11, 15Jul 27, 17[C10L, C21B]
2017/0159,158 ULTRA-HIGH-STRENGTH SPRING STEELApr 05, 16Jun 08, 17[C22C]
2017/0159,159 COIL SPRING STEELMay 17, 16Jun 08, 17[C22C]
2017/0159,161 ULTRA-HIGH-STRENGTH SPRING STEEL FOR VALVE SPRINGApr 26, 16Jun 08, 17[F01L, C22C]
2016/0199,892 HIGH-STRENGTH HOT-ROLLED PLATED STEEL SHEET AND METHOD FOR MANUFACTURING THE SAMEJan 29, 14Jul 14, 16[B21B]
2015/0361,532 HOT STAMPING PRODUCT WITH ENHANCED TOUGHNESS AND METHOD FOR MANUFACTURING THE SAMEMay 15, 13Dec 17, 15[C23C, C21D, C22C]
2015/0167,111 AUTOMOBILE PART MANUFACTURING METHOD USING QUENCHED STEEL SHEETFeb 24, 15Jun 18, 15[C23C, C21D, C22C]
2014/0029,642 ROOF FOR LADLE FURNACESep 27, 13Jan 30, 14[F27D]

Recent Patents

Patent # Title Filing Date Issue Date Intl Class
9920408 Hot stamping product with enhanced toughness and method for manufacturing the sameMay 15, 13Mar 20, 18[C23C, C21D, C22C]
9884468 Tailor welded blank, manufacturing method thereof, and hot stamped component using tailor welded blankFeb 24, 15Feb 06, 18[B23K, B32B]
9751126 Method for controlling surface quality of ultra-low carbon steel slabDec 26, 13Sep 05, 17[B22D]
9718107 Belt replacement deviceDec 27, 13Aug 01, 17[B65G, B65H, B21C]
9709515 Device and method for diagnosing cracks in a solidified shell in a moldMar 28, 13Jul 18, 17[G01N, B22D]
9664444 Slag discharge door device for an electric furnaceAug 30, 11May 30, 17[F27B, F27D, C21C, C21B]
9579705 Water pipe for which hydroforming is employed, and a production method thereforNov 07, 14Feb 28, 17[F16L, B21C, B21D]
9540182 Abrasion-detection type conveyor belt and manufacturing method thereofNov 09, 15Jan 10, 17[B65G, B32B]
9512497 Method for reducing slagJul 29, 14Dec 06, 16[C22B, C04B, C21C, C21B]
9469885 Method for recovering valuable metals from slag and apparatus for manufacturing multifunctional aggregateDec 04, 13Oct 18, 16[C22B, C04B]

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Expired/Abandoned/Withdrawn Patents

Patent # Title Status Filing Date Issue/Pub Date Intl Class
2016/0059,343 METHOD FOR IMPROVING THE WELDABILITY OF HOT STAMPING PARTSAbandonedMay 20, 13Mar 03, 16[B23K]
2015/0211,086 PREPARATION METHOD OF STEEL PRODUCT HAVING DIFFERENT STRENGTHS USING LASER HEAT TREATMENT, AND HEAT HARDENED STEEL USED THEREINAbandonedApr 10, 15Jul 30, 15[C21D, C22C]
2015/0125,620 BIPOLAR PLATE FOR A FUEL CELL AND METHOD OF MANUFACTURING THE SAMEAbandonedJan 13, 15May 07, 15[H01M]
2014/0227,553 PREPARATION METHOD OF STEEL PRODUCT HAVING DIFFERENT STRENGTHS USING LASER HEAT TREATMENT, AND HEAT HARDENED STEEL USED THEREINAbandonedOct 17, 11Aug 14, 14[C21D]
2014/0083,574 HEAT-HARDENED STEEL WITH EXCELLENT CRASHWORTHINESS AND METHOD FOR MANUFACTURING HEAT-HARDENABLE PARTS USING SAMEAbandonedJun 30, 11Mar 27, 14[C21D, C22C]
2014/0065,563 MATERIAL HEATING METHODAbandonedNov 13, 13Mar 06, 14[C21D]
2014/0047,886 STEAM-BLOCKING APPARATUSAbandonedOct 28, 13Feb 20, 14[B21B]
2013/0251,586 SINTERED BEARING AND PREPARATION METHOD THEREOFAbandonedMay 29, 13Sep 26, 13[B22F]
8535552 Method of evaluating center segregation of continuous cast slabExpiredDec 02, 11Sep 17, 13[C23F]
8534578 Method and apparatus for recovering valuable metals from slag and manufacturing multifunctional aggregateExpiredDec 02, 11Sep 17, 13[B02C]
2013/0224,063 STEEL PLATE FOR PIPELINE, HAVING EXCELLENT HYDROGEN INDUCED CRACK RESISTANCE, AND PREPARATION METHOD THEREOFAbandonedMar 29, 13Aug 29, 13[C21D, C22C]
2013/0095,413 BIPOLAR PLATE FOR A FUEL CELL AND METHOD OF MANUFACTURING THE SAMEAbandonedJun 24, 10Apr 18, 13[H01M]
2013/0064,752 METHOD FOR FIXING CARBON DIOXIDEAbandonedDec 05, 11Mar 14, 13[C01D]
2013/0014,555 QUENCHABLE STEEL SHEET HAVING HIGH HOT PRESS WORKABILITY AND METHOD OF MANUFACTURING THE SAMEAbandonedSep 14, 12Jan 17, 13[B21B]
2012/0297,851 METHOD AND APPARATUS FOR MANUFACTURING PANELS FOR VEHICLESAbandonedNov 16, 11Nov 29, 12[B21D]
8281476 Multilayered tube and manufacturing method thereof based on high pressure tube hydroformingExpiredJan 28, 09Oct 09, 12[F16B, B21D]
2012/0216,920 AUTOMOBILE PART MANUFACTURING METHOD USING QUENCHED STEEL SHEETAbandonedNov 08, 10Aug 30, 12[C23C, C21D]
2012/0129,072 AIR-COOLED METAL SEPARATOR FOR FUEL CELL AND FUEL CELL STACK USING SAMEAbandonedAug 04, 09May 24, 12[H01M]
2012/0073,404 METHOD OF RECOVERING VALUABLE METAL FROM SLAGAbandonedDec 02, 11Mar 29, 12[C22B]
8142712 Heating furnace for press hardening processExpiredNov 29, 10Mar 27, 12[C21D]

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