POSCO Holdings
Utility Patent Applications

Last updated:

List of all POSCO Holdings patents 421 in total

Status Patent
Application
Utility: Method for Separating Propylene Carbonate in Preparing Process of Polyether Carbonate Polyol External link
Filling date: 6 Sep 2025 Issue date: 17 Oct 2019
Application
Utility: HIGH STRENGTH STEEL SHEET HAVING EXCELLENT HIGH-TEMPERATURE ELONGATION CHARACTERISTIC, WARM-PRESSED MEMBER, AND MANUFACTURING METHODS FOR THE SAME External link
Filling date: 6 Sep 2025 Issue date: 17 Oct 2019
Application
Utility: COLD-ROLLED STEEL SHEET HAVING EXCELLENT CORROSION RESISTANCE AND FORMABILITY, AND METHOD FOR MANUFACTURING SAME External link
Filling date: 6 Sep 2025 Issue date: 17 Oct 2019
Application
Utility: STEEL MATERIAL FOR WELDED STEEL PIPE, HAVING EXCELLENT LONGITUDINAL UNIFORM ELONGATION, MANUFACTURING METHOD THEREFOR, AND STEEL PIPE USING SAME External link
Filling date: 6 Sep 2025 Issue date: 17 Oct 2019
Application
Utility: FERRITIC STAINLESS STEEL HAVING EXCELLENT RIDGING PROPERTY AND EXCELLENT SURFACE QUALITY AND METHOD OF MANUFACTURING THE SAME External link
Filling date: 6 Sep 2025 Issue date: 17 Oct 2019
Application
Utility: ROLLING FACILITY AND ROLLING METHOD External link
Filling date: 6 Sep 2025 Issue date: 10 Oct 2019
Application
Utility: DEPHOSPHORIZING FLUX AND METHOD FOR PREPARING SAME External link
Filling date: 6 Sep 2025 Issue date: 10 Oct 2019
Application
Utility: MOLTEN STEEL TREATMENT DEVICE AND MOLTEN STEEL TREATMENT METHOD USING SAME External link
Filling date: 6 Sep 2025 Issue date: 10 Oct 2019
Application
Utility: GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR MANUFACTURING THE SAME External link
Filling date: 6 Sep 2025 Issue date: 10 Oct 2019
Application
Utility: APPARATUS AND METHOD FOR FEEDING MATERIAL External link
Filling date: 6 Sep 2025 Issue date: 10 Oct 2019
Application
Utility: Apparatus for Cutting Material and System for Cutting Material External link
Filling date: 6 Sep 2025 Issue date: 26 Sep 2019
Application
Utility: ULTRAHIGH-STRENGTH HIGH-DUCTILITY STEEL SHEET HAVING EXCELLENT YIELD STRENGTH, AND MANUFACTURING METHOD THEREFOR External link
Filling date: 6 Sep 2025 Issue date: 26 Sep 2019
Application
Utility: METHOD OF CONTINUOUSLY ANNEALING A STRIP External link
Filling date: 6 Sep 2025 Issue date: 12 Sep 2019
Application
Utility: ANNEALING SEPARATING AGENT COMPOSITION FOR GRAIN-ORIENTED ELECTRICAL STEEL SHEET, GRAIN-ORIENTED ELECTRICAL STEEL SHEET, AND METHOD FOR MANUFACTURING GRAIN ORIENTED ELECTRICAL STEEL SHEET External link
Filling date: 6 Sep 2025 Issue date: 12 Sep 2019
Application
Utility: COMPOSITE RESIN COMPOSITION FOR STEEL PLATE FOR FUEL TANK, COMPOSITE RESIN-COATED STEEL PLATE USING SAME, AND MANUFACTURING METHOD THEREFOR External link
Filling date: 6 Sep 2025 Issue date: 5 Sep 2019
Application
Utility: PRESSURE VESSEL STEEL HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE, AND MANUFACTURING METHOD THEREFOR External link
Filling date: 6 Sep 2025 Issue date: 29 Aug 2019
Application
Utility: CASTING EQUIPMENT AND CASTING METHOD USING SAME External link
Filling date: 6 Sep 2025 Issue date: 29 Aug 2019
Application
Utility: SURFACE-TREATMENT SOLUTION COMPOSITION CONTAINING TRIVALENT CHROMIUM AND INORGANIC COMPOUND, ZINC-BASED PLATED STEEL SHEET SURFACE-TREATED USING SAME, AND METHOD FOR PRODUCING SAME External link
Filling date: 6 Sep 2025 Issue date: 29 Aug 2019
Application
Utility: SOLUTION COMPOSITION FOR STEEL SHEET SURFACE TREATMENT, ZINC-BASED PLATED STEEL SHEET SURFACE-TREATED WITH SAME, AND MANUFACTURING METHOD THEREFOR External link
Filling date: 6 Sep 2025 Issue date: 29 Aug 2019
Application
Utility: ULTRAHIGH-STRENGTH STEEL SHEET HAVING EXCELLENT YIELD RATIO, AND MANUFACTURING METHOD THEREFOR External link
Filling date: 6 Sep 2025 Issue date: 22 Aug 2019
Application
Utility: ALLOY METAL FOIL FOR USE AS DEPOSITION MASK, DEPOSITION MASK, METHODS OF PREPARING THE SAME, AND METHOD OF MANUFACTURING ORGANIC LIGHT-EMITTING DEVICE USING THE SAME External link
Filling date: 6 Sep 2025 Issue date: 22 Aug 2019

Showing 400 to 421 of 421 patents.