| 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: 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: 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: 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: 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: 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: 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 |
| Utility: Apparatus and method for detecting inner defects of steel plate Filling date: 6 Sep 2025 Issue date: 9 Jun 2020 | 23 Dec 2013 | 9 Jun 2020 |
| Utility: Adhesive laminate core manufacturing apparatus Filling date: 6 Sep 2025 Issue date: 2 Jun 2020 | 11 Aug 2016 | 2 Jun 2020 |
| Utility: Laminate unit for manufacturing bonded-type laminated core member and apparatus having the same for manufacturing laminated core member Filling date: 6 Sep 2025 Issue date: 26 May 2020 | 31 Mar 2015 | 26 May 2020 |
| Utility: Hot press formed article having good anti-delamination, and preparation method for same Filling date: 6 Sep 2025 Issue date: 19 May 2020 | 5 Apr 2016 | 19 May 2020 |
| Utility: Apparatus for removing top dross of plating pot Filling date: 6 Sep 2025 Issue date: 19 May 2020 | 21 Dec 2015 | 19 May 2020 |
| Utility: Austenitic steel having excellent machinability and ultra-low temperature toughness in weld heat-affected zone, and method of manufacturing the same Filling date: 6 Sep 2025 Issue date: 19 May 2020 | 27 Dec 2012 | 19 May 2020 |
| Utility: Pre-coating agent composition for grain-oriented electrical steel sheet, grain-oriented electrical steel sheet comprising same, and manufacturing method therefor Filling date: 6 Sep 2025 Issue date: 12 May 2020 | 4 Dec 2014 | 12 May 2020 |
| Utility: Hot press formed article having excellent delamination resistance and method for manufacturing the same Filling date: 6 Sep 2025 Issue date: 5 May 2020 | 29 Aug 2016 | 5 May 2020 |
| Utility: Non-oriented electrical steel sheet and manufacturing method therefor Filling date: 6 Sep 2025 Issue date: 5 May 2020 | 5 Dec 2014 | 5 May 2020 |
| Utility: Plated steel sheet for hot press forming having excellent weldability and corrosion resistance, forming member, and manufacturing method thereof Filling date: 6 Sep 2025 Issue date: 21 Apr 2020 | 28 Dec 2018 | 21 Apr 2020 |
| Utility: High specific strength steel sheet and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 21 Apr 2020 | 26 Dec 2013 | 21 Apr 2020 |
| Utility: Steel sheet coated with aluminum-magnesium Filling date: 6 Sep 2025 Issue date: 14 Apr 2020 | 22 May 2017 | 14 Apr 2020 |
| Utility: Dual metal cyanide catalyst, preparation method therefor, and method for preparing polycarbonate polyol by using catalyst Filling date: 6 Sep 2025 Issue date: 14 Apr 2020 | 21 Dec 2016 | 14 Apr 2020 |
| Utility: Dimension measuring device and method Filling date: 6 Sep 2025 Issue date: 14 Apr 2020 | 25 May 2016 | 14 Apr 2020 |
| Utility: Method of continuously annealing a strip Filling date: 6 Sep 2025 Issue date: 31 Mar 2020 | 30 May 2019 | 31 Mar 2020 |
| Utility: High-strength steel plate for pressure vessel having excellent toughness after post weld heat treatment and manufacturing method thereof Filling date: 6 Sep 2025 Issue date: 31 Mar 2020 | 1 Dec 2015 | 31 Mar 2020 |
| Utility: Method of preparing core-shell particles Filling date: 6 Sep 2025 Issue date: 24 Mar 2020 | 26 Jul 2018 | 24 Mar 2020 |
| Utility: 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 Filling date: 6 Sep 2025 Issue date: 17 Mar 2020 | 23 Dec 2016 | 17 Mar 2020 |
| Utility: Zinc alloy plated steel material having excellent weldability and processed-part corrosion resistance and method of manufacturing same Filling date: 6 Sep 2025 Issue date: 10 Mar 2020 | 24 Dec 2015 | 10 Mar 2020 |
| Utility: Heat treatable steel, product formed thereof having ultra high strength and excellent durability, and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 10 Mar 2020 | 22 Dec 2015 | 10 Mar 2020 |
| Utility: Cutter device for processing difficult-to-machine material Filling date: 6 Sep 2025 Issue date: 3 Mar 2020 | 21 Dec 2016 | 3 Mar 2020 |
| Utility: Steel sheet for hot press forming with excellent corrosion resistance and weldability, forming member, and manufacturing method therefor Filling date: 6 Sep 2025 Issue date: 25 Feb 2020 | 23 Dec 2014 | 25 Feb 2020 |
| Utility: Fe--P--Cr alloy thin plate and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 18 Feb 2020 | 2 Dec 2015 | 18 Feb 2020 |
| Utility: High manganese steel sheet having high strength and excellent vibration-proof properties and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 18 Feb 2020 | 24 Dec 2013 | 18 Feb 2020 |
| Utility: Method for manufacturing reduced iron Filling date: 6 Sep 2025 Issue date: 11 Feb 2020 | 11 Sep 2017 | 11 Feb 2020 |
| Utility: Composition for non-oriented electrical steel sheet, method of manufacturing non-oriented electrical steel sheet product, and non-oriented electrical steel sheet product Filling date: 6 Sep 2025 Issue date: 11 Feb 2020 | 26 Nov 2014 | 11 Feb 2020 |
| Utility: Zn alloy plated steel sheet having excellent phosphatability and spot weldability and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 28 Jan 2020 | 24 Dec 2015 | 28 Jan 2020 |
| Utility: Noncovalent bond-modified carbon structure, and carbon structure/polymer composite comprising same Filling date: 6 Sep 2025 Issue date: 28 Jan 2020 | 24 Dec 2014 | 28 Jan 2020 |
| Utility: Hot press forming parts having excellent bending properties and method for manufacturing the same Filling date: 6 Sep 2025 Issue date: 14 Jan 2020 | 1 Nov 2018 | 14 Jan 2020 |
| Utility: Hot-rolled steel sheet for high strength galvanized steel sheet, having excellent surface quality, and method for producing same Filling date: 6 Sep 2025 Issue date: 14 Jan 2020 | 24 Dec 2014 | 14 Jan 2020 |
| Utility: Method for manufacturing a hot dip galvanized and galvannealed steel sheet having excellent elongation properties Filling date: 6 Sep 2025 Issue date: 7 Jan 2020 | 14 Jun 2017 | 7 Jan 2020 |
| Utility: High-strength cold rolled steel sheet having excellent ductility, hot-dip galvanized steel sheet and method for manufacturing same Filling date: 6 Sep 2025 Issue date: 31 Dec 2019 | 9 Jan 2015 | 31 Dec 2019 |
| Utility: High manganese steel pipe with step-out weld zone erosion-corrosion resistance and method of making the same Filling date: 6 Sep 2025 Issue date: 3 Dec 2019 | 2 May 2017 | 3 Dec 2019 |
| Utility: Field girth welding technology for high manganese steel slurry pipelines Filling date: 6 Sep 2025 Issue date: 3 Dec 2019 | 2 May 2017 | 3 Dec 2019 |
| Utility: Austenitic-based stainless steel for molten carbonate fuel cell Filling date: 6 Sep 2025 Issue date: 3 Dec 2019 | 22 Dec 2015 | 3 Dec 2019 |
| Utility: Air knife Filling date: 6 Sep 2025 Issue date: 12 Nov 2019 | 3 Jun 2016 | 12 Nov 2019 |
| Utility: Continuous casting and rolling apparatus and method Filling date: 6 Sep 2025 Issue date: 12 Nov 2019 | 2 Dec 2014 | 12 Nov 2019 |
| Utility: Method for increasing coke-oven gas Filling date: 6 Sep 2025 Issue date: 5 Nov 2019 | 4 Oct 2012 | 5 Nov 2019 |
| Utility: Chrome free coating composition having excellent blackening resistance and corrosion resistance, and surface-treated steel sheet Filling date: 6 Sep 2025 Issue date: 29 Oct 2019 | 22 Dec 2015 | 29 Oct 2019 |
