| Utility: NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 22 Oct 2020 | 18 Dec 2018 | 22 Oct 2020 |
| Utility: STEEL SHEET HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE AND LONGITUDINAL STRENGTH UNIFORMITY, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 22 Oct 2020 | 3 Dec 2018 | 22 Oct 2020 |
| Utility: HIGH-STRENGTH STRUCTURAL STEEL MATERIAL HAVING EXCELLENT FATIGUE CRACK PROPAGATION INHIBITORY CHARACTERISTICS AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 22 Oct 2020 | 23 Nov 2018 | 22 Oct 2020 |
| Utility: ZINC-BASED PLATED STEEL SHEET HAVING EXCELLENT ROOM TEMPERATURE AGING RESISTANCE AND BAKE HARDENABILITY, AND METHOD FOR PRODUCING SAME Filling date: 6 Sep 2025 Issue date: 22 Oct 2020 | 23 Nov 2018 | 22 Oct 2020 |
| Utility: CONTINUOUS CASTING AND ROLLING APPARATUS AND CONTINUOUS CASTING AND ROLLING METHOD Filling date: 6 Sep 2025 Issue date: 22 Oct 2020 | 2 Nov 2018 | 22 Oct 2020 |
| Utility: NON-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR PREPARING SAME Filling date: 6 Sep 2025 Issue date: 22 Oct 2020 | 17 May 2018 | 22 Oct 2020 |
| Utility: Method of manufacturing hot press formed parts having excellent powdering resistance Filling date: 6 Sep 2025 Issue date: 20 Oct 2020 | 3 Apr 2018 | 20 Oct 2020 |
| Utility: HIGH-STRENGTH STEEL WITH EXCELLENT TOUGHNESS OF HEAT-AFFECTED ZONE AND MANUFACTURING METHOD THEREOF Filling date: 6 Sep 2025 Issue date: 15 Oct 2020 | 21 Dec 2018 | 15 Oct 2020 |
| Utility: COMPOSITE MATERIAL STEEL SHEET Filling date: 6 Sep 2025 Issue date: 15 Oct 2020 | 6 Dec 2018 | 15 Oct 2020 |
| Utility: PRECIPITATION-HARDENING HOT ROLLED STEEL SHEET HAVING EXCELLENT MATERIAL UNIFORMITY AND HOLE EXPANDABILITY, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 15 Oct 2020 | 23 Jun 2017 | 15 Oct 2020 |
| Utility: Electrical steel sheet and method for manufacturing the same Filling date: 6 Sep 2025 Issue date: 13 Oct 2020 | 5 Oct 2018 | 13 Oct 2020 |
| Utility: Thick steel plate having excellent low-temperature toughness and hydrogen-induced cracking resistance, and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 13 Oct 2020 | 16 Dec 2016 | 13 Oct 2020 |
| Utility: STEEL SHEET FOR SHIELDING MAGNETIC FIELD AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 8 Oct 2020 | 19 Dec 2018 | 8 Oct 2020 |
| Utility: METHOD FOR PREPARING POROUS CARBON MATERIAL BY USING COAL TAR GENERATED IN COG PROCESS Filling date: 6 Sep 2025 Issue date: 8 Oct 2020 | 2 Oct 2018 | 8 Oct 2020 |
| Utility: High strength galvanized steel sheet having excellent surface qualities, plating adhesion, and formability, and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 6 Oct 2020 | 23 Dec 2015 | 6 Oct 2020 |
| Utility: Grain-oriented electrical steel sheet and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 6 Oct 2020 | 22 Jul 2014 | 6 Oct 2020 |
| Utility: SURFACE-TREATED METALLIC MATERIAL WITH EASY CONTROL OF GLOSSINESS AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 1 Oct 2020 | 23 Nov 2016 | 1 Oct 2020 |
| Utility: NON-MAGNETIC AUSTENITIC STAINLESS STEEL HAVING EXCELLENT CORROSION RESISTANCE AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 24 Sep 2020 | 10 Aug 2018 | 24 Sep 2020 |
| Utility: COACERVATE FORMED FROM CATECHOL-SUBSTITUTED ANIONIC POLYMER, ADHESIVE COMPRISING SAME, AND METHOD FOR PRODUCING SAME Filling date: 6 Sep 2025 Issue date: 24 Sep 2020 | 10 Jul 2018 | 24 Sep 2020 |
| Utility: SOLUTION COMPOSITION CONTAINING TRIVALENT CHROMIUM FOR SURFACE TREATMENT OF STEEL SHEET, GALVANIZED STEEL SHEET SURFACE-TREATED WITH SAME, AND METHOD FOR MANUFACTURING GALVANIZED STEEL SHEET Filling date: 6 Sep 2025 Issue date: 17 Sep 2020 | 13 Nov 2018 | 17 Sep 2020 |
| Utility: FERRITE-BASED STAINLESS STEEL HAVING EXCELLENT IMPACT TOUGHNESS, AND METHOD FOR PRODUCING SAME Filling date: 6 Sep 2025 Issue date: 10 Sep 2020 | 12 Sep 2018 | 10 Sep 2020 |
| Utility: LOW-TEMPERATURE STEEL PLATE HAVING EXCELLENT IMPACT TOUGHNESS, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 10 Sep 2020 | 26 Jun 2018 | 10 Sep 2020 |
| Utility: UPCONVERSION NANOPARTICLE, HYALURONIC ACID-UPCONVERSION NANOPARTICLE CONJUGATE, AND A PRODUCTION METHOD THEREOF USING A CALCULATION FROM FIRST PRINCIPLES Filling date: 6 Sep 2025 Issue date: 3 Sep 2020 | 6 Feb 2020 | 3 Sep 2020 |
| Utility: STAINLESS STEEL FOR SEPARATION PLATE OF POLYMER ELECTROLYTE MEMBRANE FUEL CELL HAVING IMPROVED HYDROPHILIC PROPERTY AND CORROSION RESISTANCE, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 3 Sep 2020 | 16 Dec 2016 | 3 Sep 2020 |
| Utility: Grain-oriented electrical steel sheet and manufacturing method of grain-oriented electrical steel sheet Filling date: 6 Sep 2025 Issue date: 1 Sep 2020 | 16 Dec 2014 | 1 Sep 2020 |
| Utility: COMPOSITION FOR WASHING PICKLED STEEL PLATE, METHOD FOR WASHING PICKLED STEEL PLATE BY USING SAME, AND STEEL PLATE OBTAINED THEREBY Filling date: 6 Sep 2025 Issue date: 27 Aug 2020 | 19 Dec 2016 | 27 Aug 2020 |
| Utility: Ultrahigh-strength high-ductility steel sheet having excellent yield strength, and manufacturing method therefor Filling date: 6 Sep 2025 Issue date: 25 Aug 2020 | 18 May 2017 | 25 Aug 2020 |
| Utility: HIGH MANGESE STEEL FOR LOW TEMPERATURE APPLICATIONS HAVING EXCELLENT SURFACE QUALITY AND A MANUFACTURING METHOD THEREOF Filling date: 6 Sep 2025 Issue date: 20 Aug 2020 | 11 Oct 2018 | 20 Aug 2020 |
| Utility: AUSTENITE-BASED MOLTEN ALUMINUM-PLATED STEEL SHEET HAVING EXCELLENT PROPERTIES OF PLATING AND WELDABILITY, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 20 Aug 2020 | 22 Dec 2016 | 20 Aug 2020 |
| Utility: HIGH-STRENGTH STEEL MATERIAL HAVING EXCELLENT LOW-TEMPERATURE STRAIN AGING IMPACT PROPERTIES AND WELDING HEAT-AFFECTED ZONE IMPACT PROPERTIES AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 20 Aug 2020 | 15 Dec 2016 | 20 Aug 2020 |
| Utility: ULTRA HIGH STRENGTH HOT-ROLLED STEEL SHEET HAVING EXCELLENT DUCTILITY AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 20 Aug 2020 | 21 Nov 2016 | 20 Aug 2020 |
| Utility: STEEL MATERIAL FOR WELDING STEEL PIPE HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS, STEEL MATERIAL THAT HAS UNDERGONE WELD HEAT TREATMENT, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 13 Aug 2020 | 2 Nov 2018 | 13 Aug 2020 |
| Utility: WIRE ROD AND STEEL WIRE FOR SPRINGS HAVING EXCELLENT CORROSION FATIGUE RESISTANCE PROPERTIES, AND METHOD FOR PRODUCING SAME Filling date: 6 Sep 2025 Issue date: 13 Aug 2020 | 13 Sep 2018 | 13 Aug 2020 |
| Utility: SAGGER FOR FIRING SECONDARY BATTERY ACTIVE MATERIAL AND METHOD FOR MANUFACTURING SECONDARY BATTERY ACTIVE MATERIAL USING SAME Filling date: 6 Sep 2025 Issue date: 13 Aug 2020 | 28 Sep 2017 | 13 Aug 2020 |
| Utility: COATING COMPOSITION HAVING EXCELLENT CORROSION RESISTANCE AND FINGERPRINT RESISTANCE, STAINLESS STEEL SHEET HAVING ETCHING PATTERNS, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 13 Aug 2020 | 24 Nov 2016 | 13 Aug 2020 |
| Utility: ULTRA-HIGH STRENGTH STEEL PLATE HAVING EXCELLENT FORMABILITY AND HOLE-EXPANDABILITY, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 6 Aug 2020 | 5 Oct 2016 | 6 Aug 2020 |
| Utility: COLD-ROLLED STEEL SHEET HAVING EXCELLENT BENDABILITY AND HOLE EXPANDABILITY AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 30 Jul 2020 | 21 Dec 2017 | 30 Jul 2020 |
| Utility: SOUR-RESISTANT HEAVY-WALL STEEL PLATE HAVING EXCELLENT LOW-TEMPERATURE TOUGHNESS AND POST-HEAT TREATMENT CHARACTERISTICS AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 30 Jul 2020 | 24 Nov 2017 | 30 Jul 2020 |
| Utility: Aptamer against insulin receptor and pharmaceutical compostion containing the same Filling date: 6 Sep 2025 Issue date: 28 Jul 2020 | 3 May 2016 | 28 Jul 2020 |
| Utility: ANTIMICROBIAL ADHESIVE PROTEIN, ANTIMICROBIAL NANOPARTICLE, ANTIMICROBIAL COMPOSITION COMPRISING SAME NANOPARTICLE, AND PREPARATION METHOD FOR SAME COMPOSITION Filling date: 6 Sep 2025 Issue date: 23 Jul 2020 | 13 Jul 2018 | 23 Jul 2020 |
| Utility: MOLTEN MATERIAL TREATMENT APPARATUS Filling date: 6 Sep 2025 Issue date: 16 Jul 2020 | 12 Jul 2018 | 16 Jul 2020 |
| Utility: Adhesive coating composition for non-oriented electrical steel sheet, non-oriented electrical steel sheet product, and manufacturing method therefor Filling date: 6 Sep 2025 Issue date: 14 Jul 2020 | 27 Jul 2016 | 14 Jul 2020 |
| Utility: Meniscus flow control device and meniscus flow control method using same Filling date: 6 Sep 2025 Issue date: 14 Jul 2020 | 19 Nov 2015 | 14 Jul 2020 |
| Utility: ROLLER ASSEMBLY, CASTING APPARATUS, AND ROLLER SEPARATING METHOD FOR SAME Filling date: 6 Sep 2025 Issue date: 9 Jul 2020 | 8 Aug 2018 | 9 Jul 2020 |
| Utility: Pickling apparatus and pickling method Filling date: 6 Sep 2025 Issue date: 7 Jul 2020 | 28 Jul 2016 | 7 Jul 2020 |
| Utility: High-strength thin steel sheet with excellent drawability and bake hardenability, and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 7 Jul 2020 | 7 Jun 2016 | 7 Jul 2020 |
| Utility: Ink composition for steel material, having excellent adhesion, method for manufacturing printed steel sheet by using same, and printed steel sheet manufactured thereby Filling date: 6 Sep 2025 Issue date: 30 Jun 2020 | 21 Dec 2016 | 30 Jun 2020 |
| Utility: Automotive front side frame Filling date: 6 Sep 2025 Issue date: 30 Jun 2020 | 17 Feb 2016 | 30 Jun 2020 |
| Utility: FERRITE-BASED STAINLESS STEEL HAVING IMPROVED HEAT RADIATION PROPERTY AND PROCESSABILITY AND METHOD FOR PREPARING SAME Filling date: 6 Sep 2025 Issue date: 25 Jun 2020 | 11 Dec 2017 | 25 Jun 2020 |
| Utility: High strength steel sheet having excellent cryogenic temperature toughness and low yield ratio properties, and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 23 Jun 2020 | 28 Dec 2012 | 23 Jun 2020 |
