| Utility: MAGNESIUM ALLOY SHEET AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 13 Jan 2022 | 24 Sep 2019 | 13 Jan 2022 |
| Utility: APPARATUS FOR COOLING STEEL SHEET Filling date: 6 Sep 2025 Issue date: 13 Jan 2022 | 11 Jun 2019 | 13 Jan 2022 |
| Utility: ULTRAHIGH-STRENGTH STEEL HAVING EXCELLENT COLD WORKABILITY AND SSC RESISTANCE, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 6 Jan 2022 | 29 Nov 2019 | 6 Jan 2022 |
| Utility: FILTERING PANEL AND PHOTOVOLTAIC MODULE INCLUDING SAME Filling date: 6 Sep 2025 Issue date: 6 Jan 2022 | 27 Nov 2019 | 6 Jan 2022 |
| Utility: DEVICE FOR MANUFACTURING MOLTEN IRON Filling date: 6 Sep 2025 Issue date: 6 Jan 2022 | 1 Nov 2019 | 6 Jan 2022 |
| Utility: CATHODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, PREPARATION METHOD THEREFOR, AND LITHIUM SECONDARY BATTERY COMPRISING SAME Filling date: 6 Sep 2025 Issue date: 6 Jan 2022 | 27 Sep 2019 | 6 Jan 2022 |
| Utility: ELECTRICAL STEEL SHEET LAMINATE Filling date: 6 Sep 2025 Issue date: 6 Jan 2022 | 25 Sep 2019 | 6 Jan 2022 |
| Utility: STEEL MATERIAL HAVING LOW YIELD RATIO AND EXCELLENT HEAT AFFECTED ZONE TOUGHNESS AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 30 Dec 2021 | 25 Oct 2019 | 30 Dec 2021 |
| Utility: STEEL WIRE ROD ENABLING OMISSION OF SOFTENING HEAT TREATMENT AND METHOD OF MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 30 Dec 2021 | 18 Oct 2019 | 30 Dec 2021 |
| Utility: ANODE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY, METHOD FOR PREPARING SAME, AND LITHIUM SECONDARY BATTERY COMPRISING SAME Filling date: 6 Sep 2025 Issue date: 30 Dec 2021 | 13 Aug 2019 | 30 Dec 2021 |
| Utility: STEEL PLATE FOR PRESSURE VESSEL HAVING EXCELLENT HYDROGEN INDUCED CRACKING RESISTANCE AND METHOD OF MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 23 Dec 2021 | 29 Nov 2019 | 23 Dec 2021 |
| Utility: HOT PRESS-FORMED PART, AND MANUFACTURING METHOD THEREOF Filling date: 6 Sep 2025 Issue date: 23 Dec 2021 | 20 Nov 2019 | 23 Dec 2021 |
| Utility: METHOD FOR WELDING A ZINC COATED STEEL SHEET Filling date: 6 Sep 2025 Issue date: 23 Dec 2021 | 8 Oct 2019 | 23 Dec 2021 |
| Utility: HIGH STRENGTH STEEL PLATE FOR STRUCTURE WITH GOOD SEAWATER CORROSION RESISTANT PROPERTY AND METHOD OF MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 16 Dec 2021 | 8 Nov 2019 | 16 Dec 2021 |
| Utility: CRYOGENIC AUSTENITIC HIGH-MANGANESE STEEL HAVING EXCELLENT CORROSION RESISTANCE, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 16 Dec 2021 | 25 Oct 2019 | 16 Dec 2021 |
| Utility: SURFACE TREATMENT SOLUTION COMPOSITION CONTAINING TRIVALENT CHROMIUM AND INORGANIC COMPOUND, AND METHOD FOR MANUFACTURING HOT DIP GALVANIZED STEEL SHEET SURFACE-TREATED USING SAME Filling date: 6 Sep 2025 Issue date: 16 Dec 2021 | 17 Oct 2019 | 16 Dec 2021 |
| Utility: STEEL PLATE FOR PRESSURE VESSEL WITH EXCELLENT CRYOGENIC TOUGHNESS AND EXCELLENT DUCTILITY AND MANUFACTURING METHOD THEREOF Filling date: 6 Sep 2025 Issue date: 16 Dec 2021 | 8 Oct 2019 | 16 Dec 2021 |
| Utility: FLASH BUTT WELDING MEMBER AND FLASH BUTT WELDING METHOD FOR PROVIDING WHEEL RIM WELD PART WITH EXCELLENT FORMABILITY Filling date: 6 Sep 2025 Issue date: 9 Dec 2021 | 25 Aug 2020 | 9 Dec 2021 |
| Utility: ZINC ALLOY-PLATED STEEL MATERIAL HAVING EXCELLENT CORROSION RESISTANCE AND SURFACE QUALITY, AND METHOD FOR PRODUCING SAME Filling date: 6 Sep 2025 Issue date: 9 Dec 2021 | 12 Dec 2019 | 9 Dec 2021 |
| Utility: DOUBLY ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 9 Dec 2021 | 25 Sep 2019 | 9 Dec 2021 |
| Utility: COATING COMPOSITION FOR ELECTRICAL STEEL SHEET, AND ELECTRICAL STEEL SHEET COMPRISING INSULATING COATING Filling date: 6 Sep 2025 Issue date: 9 Dec 2021 | 30 Jul 2019 | 9 Dec 2021 |
| Utility: METHOD FOR PRODUCING HIGH MANGANESE STEEL MATERIAL HAVING EXCELLENT ANTI-VIBRATION CHARACTERISTICS AND FORMABILITY, AND HIGH MANGANESE STEEL PRODUCED THEREBY Filling date: 6 Sep 2025 Issue date: 9 Dec 2021 | 10 Dec 2018 | 9 Dec 2021 |
| Utility: HIGH-STRENGTH FERRITIC STAINLESS STEEL FOR CLAMP AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 2 Dec 2021 | 8 Oct 2019 | 2 Dec 2021 |
| Utility: POSITIVE POLE ACTIVE MATERIAL FOR LITHIUM SECONDARY BATTERY AND MANUFACTURING METHOD THEREOF, LITHIUM SECONDARY BATTERY Filling date: 6 Sep 2025 Issue date: 2 Dec 2021 | 18 Dec 2018 | 2 Dec 2021 |
| Utility: STEEL SHEET FOR HOT PRESS FORMED MEMBER HAVING EXCELLENT PAINTING ADHESION AND POST-PAINTING CORROSION RESISTANCE, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 25 Nov 2021 | 5 Aug 2021 | 25 Nov 2021 |
| Utility: NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 18 Nov 2021 | 27 Sep 2019 | 18 Nov 2021 |
| Utility: PLATING WEIGHT CONTROL DEVICE AND CONTROL METHOD Filling date: 6 Sep 2025 Issue date: 11 Nov 2021 | 20 Sep 2019 | 11 Nov 2021 |
| Utility: ALUMINUM-ZINC ALLOY PLATED STEEL SHEET HAVING EXCELLENT HOT WORKABILITY AND CORROSION RESISTANCE, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 11 Nov 2021 | 23 Aug 2019 | 11 Nov 2021 |
| Utility: FERRITE-BASED STAINLESS STEEL HAVING EXCELLENT PROCESSABILITY AND HIGH-TEMPERATURE STRENGTH AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 11 Nov 2021 | 22 Aug 2019 | 11 Nov 2021 |
| Utility: COATING WEIGHT CONTROL APPARATUS AND COATING WEIGHT CONTROL METHOD Filling date: 6 Sep 2025 Issue date: 11 Nov 2021 | 21 Aug 2019 | 11 Nov 2021 |
| Utility: COMPOSITION FOR SURFACE TREATMENT OF MG-CONTAINING GALVANIZED STEEL SHEET AND MG-CONTAINING GALVANIZED STEEL SHEET SURFACE-TREATED USING SAME Filling date: 6 Sep 2025 Issue date: 11 Nov 2021 | 16 Aug 2019 | 11 Nov 2021 |
| Utility: NON-ORIENTED ELECTRICAL STEEL SHEET AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 4 Nov 2021 | 25 Sep 2019 | 4 Nov 2021 |
| Utility: HIGHLY CORROSION-RESISTANT PLATED STEEL SHEET HAVING EXCELLENT PLATING ADHESION AND RESISTANCE TO LIQUID METAL EMBRITTLEMENT Filling date: 6 Sep 2025 Issue date: 4 Nov 2021 | 20 Sep 2019 | 4 Nov 2021 |
| Utility: WELDED MEMBER FOR PLATED STEEL PLATE EXCELLENT IN WELD ZONE POROSITY RESISTANCE AND FATIGUE PROPERTIES AND METHOD FOR MANUFACTURING THE SAME Filling date: 6 Sep 2025 Issue date: 4 Nov 2021 | 18 Jun 2018 | 4 Nov 2021 |
| Utility: APPARATUS FOR COOLING HOT-DIP PLATED STEEL SHEET Filling date: 6 Sep 2025 Issue date: 28 Oct 2021 | 14 Oct 2019 | 28 Oct 2021 |
| Utility: WIRE ROD FOR COLD HEADING, PROCESSED PRODUCT USING SAME, AND MANUFACTURING METHODS THEREFOR Filling date: 6 Sep 2025 Issue date: 21 Oct 2021 | 29 Aug 2019 | 21 Oct 2021 |
| Utility: ULTRA HIGH STRENGTH AND HIGH DUCTILITY STEEL SHEET HAVING EXCELLENT YIELD RATIO AND MANUFACTURING METHOD FOR SAME Filling date: 6 Sep 2025 Issue date: 14 Oct 2021 | 3 Sep 2019 | 14 Oct 2021 |
| Utility: GRAIN-ORIENTED ELECTRICAL STEEL SHEET AND METHOD FOR REFINING MAGNETIC DOMAIN OF SAME Filling date: 6 Sep 2025 Issue date: 14 Oct 2021 | 23 May 2019 | 14 Oct 2021 |
| Utility: TI- AND NB-ADDED FERRITIC STAINLESS STEEL EXCELLENT IN LOW-TEMPERATURE TOUGHNESS OF WELDS Filling date: 6 Sep 2025 Issue date: 7 Oct 2021 | 2 Nov 2018 | 7 Oct 2021 |
| Utility: STEEL FOR PRESSURE VESSEL HAVING EXCELLENT SURFACE QUALITY AND IMPACT TOUGHNESS, AND METHOD FOR MANUFACTURING SAME Filling date: 6 Sep 2025 Issue date: 30 Sep 2021 | 2 Aug 2019 | 30 Sep 2021 |
| Utility: MANUFACTURING APPARATUS FOR LITHIUM SULFATE AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 30 Sep 2021 | 2 Aug 2019 | 30 Sep 2021 |
| Utility: METHOD AND APPARATUS FOR REUSING WASTEWATER BY USING REVERSE OSMOSIS Filling date: 6 Sep 2025 Issue date: 30 Sep 2021 | 18 Jul 2019 | 30 Sep 2021 |
| Utility: COOLING APPARATUS Filling date: 6 Sep 2025 Issue date: 30 Sep 2021 | 4 Apr 2017 | 30 Sep 2021 |
| Utility: HIGH-STRENGTH COLD ROLLED STEEL SHEET WITH LOW MATERIAL NON-UNIFORMITY AND EXCELLENT FORMABILITY, HOT DIPPED GALVANIZED STEEL SHEET, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 23 Sep 2021 | 4 Jun 2021 | 23 Sep 2021 |
| Utility: AUSTENITIC STAINLESS STEEL HAVING IMPROVED STRENGTH Filling date: 6 Sep 2025 Issue date: 23 Sep 2021 | 8 Aug 2019 | 23 Sep 2021 |
| Utility: LOW-DENSITY CLAD STEEL SHEET HAVING EXCELLENT STRENGTH AND PLATEABILITY, AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 23 Sep 2021 | 25 Jul 2019 | 23 Sep 2021 |
| Utility: METHOD FOR PRODUCING LITHIUM CHLORIDE, AND LITHIUM CARBONATE Filling date: 6 Sep 2025 Issue date: 23 Sep 2021 | 19 Jun 2017 | 23 Sep 2021 |
| Utility: MANUFACTURING METHOD OF SURFACE-TREATED ZINC-NICKEL ALLOY ELECTROPLATED STEEL SHEET HAVING EXCELLENT CORROSION RESISTIVITY AND PAINTABILITY Filling date: 6 Sep 2025 Issue date: 16 Sep 2021 | 28 Jun 2019 | 16 Sep 2021 |
| Utility: WIRE ROD WITH EXCELLENT STRENGTH AND DUCTILITY AND MANUFACTURING METHOD THEREFOR Filling date: 6 Sep 2025 Issue date: 16 Sep 2021 | 23 Nov 2017 | 16 Sep 2021 |
| Utility: LITHIUM-TITANIUM COMPLEX OXIDE, PREPARATION METHOD THEREOF, AND LITHIUM SECONDARY BATTERY COMPRISING SAME Filling date: 6 Sep 2025 Issue date: 16 Sep 2021 | 26 May 2017 | 16 Sep 2021 |
