Assignee
POSCO
KR663 patents
Top patents by PatentIndex Score
US7105066B2Sep 12, 2006
Steel plate having superior toughness in weld heat-affected zone and welded structure made therefrom
POSCO87 citations95
US7524535B2Apr 28, 2009
Method of protecting metals from corrosion using thiol compounds
POSCO28 citations91
US10590522B2Mar 17, 2020
Aluminum-iron alloy-coated steel sheet for hot press forming, having excellent hydrogen delayed fracture resistance, peeling resistance, and weldability and hot-formed member using same
POSCO15 citations86
US11141953B2Oct 12, 2021
Steel sheet for hot press formed member having excellent painting adhesion and post-painting corrosion resistance
POSCO5 citations83
US10391518B2Aug 27, 2019
Method for manufacturing transparent pattern print steel plate
POSCO7 citations82
US6776857B2Aug 17, 2004
Method and device for manufacturing a hot rolled steel strip
POSCO18 citations82
US9994931B2Jun 12, 2018
Method for extracting lithium from solution containing lithium
POSCO15 citations81
US9598291B2Mar 21, 2017
Method for manufacturing lithium hydroxide and method using same for manufacturing lithium carbonate
POSCO16 citations81
US7405265B2Jul 29, 2008
Method of preparing catalyst for polymerization of aliphatic polycarbonate and method of polymerizing aliphatic polycarbonate
POSCO13 citations81
US6686061B2Feb 3, 2004
Steel plate having TiN+CuS precipitates for welded structures, method for manufacturing same and welded structure made therefrom
POSCO14 citations81
US9289821B2Mar 22, 2016
Apparatus for preventing damage to casting rolls in strip casting machine
POSCO9 citations80
US7981196B2Jul 19, 2011
Apparatus and method for recovering carbon dioxide from flue gas using ammonia water
POSCO12 citations79
US11939651B2Mar 26, 2024
Al—Fe-alloy plated steel sheet for hot forming, having excellent TWB welding characteristics, hot forming member, and manufacturing methods therefor
POSCO3 citations74
US11732323B2Aug 22, 2023
Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof
POSCO2 citations73
US11529795B2Dec 20, 2022
Steel sheet plated with Al—Fe for hot press forming having excellent corrosion resistance and spot weldability, and manufacturing method thereof
POSCO2 citations73
US11338549B2May 24, 2022
Steel sheet for hot press formed member having excellent resistance to hydrogen delayed fracture and method for manufacturing thereof
POSCO2 citations73
US11274357B2Mar 15, 2022
Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof
POSCO2 citations73
US10934601B2Mar 2, 2021
Plated steel sheet for hot press forming having excellent impact property, hot press formed part, and manufacturing method thereof
POSCO2 citations73
US10570493B2Feb 25, 2020
Steel sheet for hot press forming with excellent corrosion resistance and weldability, forming member, and manufacturing method therefor
POSCO2 citations73
US10533237B2Jan 14, 2020
Hot press forming parts having excellent bending properties and method for manufacturing the same
POSCO4 citations73
US10151013B2Dec 11, 2018
Hot press forming parts having excellent bending properties and method for manufacturing the same
POSCO4 citations73
US12060111B2Aug 13, 2024
Side sill for vehicle
POSCO3 citations72
US11680305B2Jun 20, 2023
High strength steel sheet having excellent high-temperature elongation characteristic, warm-pressed member, and manufacturing methods for the same
POSCO4 citations72
US11414743B2Aug 16, 2022
Multilayered zinc alloy plated steel material having excellent spot weldability and corrosion resistance
POSCO2 citations72
US10907231B2Feb 2, 2021
Grain-oriented electrical steel sheet and manufacturing method therefor
POSCO2 citations72
US10837094B2Nov 17, 2020
Aluminum-based alloy plated steel sheet having excellent processing part corrosion resistance
POSCO2 citations72
US10584396B2Mar 10, 2020
Heat treatable steel, product formed thereof having ultra high strength and excellent durability, and method for manufacturing same
POSCO2 citations72
US10344361B2Jul 9, 2019
Ultra-high strength, hot-dip galvanized steel sheet having excellent surface quality and coating adhesion
POSCO2 citations72
US9856120B2Jan 2, 2018
Transportation device and transportation system using same
POSCO3 citations72
US7517857B2Apr 14, 2009
Immune-modulating peptide
POSCO6 citations72
US12331373B2Jun 17, 2025
Steel material, for pressure vessel, showing excellent hydrogen-induced cracking resistance and method for preparing same
POSCO2 citations71
US12049688B2Jul 30, 2024
Austenitic stainless steel having excellent electrical conductivity, and method for manufacturing same
POSCO2 citations71
US12000008B2Jun 4, 2024
Advanced high strength zinc plated steel sheet having excellent surface quality and electrical resistance spot weldability
POSCO2 citations71
US11624100B2Apr 11, 2023
Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same
POSCO2 citations71
US11441205B2Sep 13, 2022
Cold-rolled steel plate for hot forming, having excellent corrosion-resistance and spot-weldability, hot-formed member, and method for manufacturing same
POSCO2 citations71
US11358369B2Jun 14, 2022
Plating steel sheet for hot press forming, forming member using same, and manufacturing method therefor
POSCO4 citations71
US11248287B2Feb 15, 2022
Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance
POSCO3 citations71
US11167527B2Nov 9, 2021
Aluminum-based plated steel having excellent corrosion resistance, aluminum-based alloy plated steel using the same, and method of manufacturing thereof
POSCO1 citations71
US11060170B2Jul 13, 2021
Non-oriented electrical steel sheet and manufacturing method therefor
POSCO2 citations71
US11001918B2May 11, 2021
High-strength hot-dip galvanized steel sheet having excellent plating surface quality and adhesion, and method of manufacturing the same
POSCO2 citations71
US10351924B2Jul 16, 2019
Hot-dip galvanized steel sheet and hot-dip galvannealed steel sheet having improved hole expansion ratio, and manufacturing methods thereof
POSCO2 citations71
US10144986B2Dec 4, 2018
Ultrahigh-strength steel sheet and manufacturing method therefor
POSCO2 citations71
US10106866B2Oct 23, 2018
Magnesium-aluminum coated steel sheet
POSCO3 citations71
US9744743B2Aug 29, 2017
Zn—Mg alloy plated steel sheet, and method for manufacturing same
POSCO5 citations71
US9708684B2Jul 18, 2017
Hot dip galvanized and galvannealed steel sheet having excellent elongation properties
POSCO2 citations71
US9650073B2May 16, 2017
Forward portion of vehicle body
POSCO5 citations71
US8047718B2Nov 1, 2011
Bearing device for roll of hot dipping bath in continuous hot dip coating line
POSCO7 citations71
US6966955B2Nov 22, 2005
Steel plate having TiN+ZrN precipitates for welded structures, method for manufacturing same and welded structure made therefrom
POSCO8 citations71
US11981973B2May 14, 2024
Zinc plated steel sheet having excellent fatigue strength of electrical resistance spot welds, and manufacturing method thereof
POSCO2 citations70
US11814556B2Nov 14, 2023
Coacervate formed from catechol-substituted anionic polymer, adhesive comprising same, and method for producing same
POSCO2 citations70
Showing the top 50 of 663 patents by PatentIndex Score.