| Utility: ELECTRIC POWER SOFTWARE DEVELOPMENT PLATFORM Filling date: 7 Sep 2025 Issue date: 4 Nov 2021 | 15 Jan 2018 | 4 Nov 2021 |
| Utility: PHASE CURRENT CONTROL DEVICE FOR DAB CONVERTER, AND METHOD THEREFOR Filling date: 7 Sep 2025 Issue date: 9 Sep 2021 | 11 Nov 2016 | 9 Sep 2021 |
| Utility: DATA TRANSMISSION SYSTEM AND METHOD IN PHYSICAL NETWORK SEPARATION ENVIRONMENT Filling date: 7 Sep 2025 Issue date: 1 Jul 2021 | 4 Jul 2017 | 1 Jul 2021 |
| Utility: AMI SYSTEM FOR PERFORMING PHASE DETECTION AND SYNCHRONIZATION IN AMI COMMUNICATION NETWORK USING RELAY COMMUNICATION METHOD, AND METHOD THEREOF Filling date: 7 Sep 2025 Issue date: 17 Jun 2021 | 13 Jul 2017 | 17 Jun 2021 |
| Utility: APPARATUS AND METHOD FOR GENERATING DATA QUALITY INFORMATION OF ELECTRIC POWER EQUIPMENT Filling date: 7 Sep 2025 Issue date: 3 Jun 2021 | 22 Jun 2017 | 3 Jun 2021 |
| Utility: SYSTEM AND METHOD FOR AUTOMATIC DIAGNOSIS OF POWER GENERATION FACILITY Filling date: 7 Sep 2025 Issue date: 13 May 2021 | 23 Aug 2017 | 13 May 2021 |
| Utility: APPARATUS AND METHOD FOR DIAGNOSING BATTERY Filling date: 7 Sep 2025 Issue date: 14 Jan 2021 | 24 Jul 2018 | 14 Jan 2021 |
| Utility: DATA CONCENTRATION UNIT AND OPERATING METHOD THEREOF Filling date: 7 Sep 2025 Issue date: 31 Dec 2020 | 11 Aug 2017 | 31 Dec 2020 |
| Utility: METERING DATA MANAGEMENT SYSTEM AND COMPUTER READABLE RECORDING MEDIUM Filling date: 7 Sep 2025 Issue date: 17 Dec 2020 | 21 Nov 2016 | 17 Dec 2020 |
| Utility: VESSEL FOR TRANSPORTING AND INSTALLING OFFSHORE WIND POWER GENERATOR Filling date: 7 Sep 2025 Issue date: 10 Dec 2020 | 10 Jun 2019 | 10 Dec 2020 |
| Utility: ELECTRIC VEHICLE HAVING WATT-HOUR METER AND MOBILE DISTRIBUTED POWER SOURCE OPERATING SYSTEM Filling date: 7 Sep 2025 Issue date: 26 Nov 2020 | 28 Sep 2018 | 26 Nov 2020 |
| Utility: EXHAUST GAS PURIFICATION APPARATUS AND EXHAUST GAS PURIFICATION METHOD USING SAME Filling date: 7 Sep 2025 Issue date: 12 Nov 2020 | 29 Nov 2016 | 12 Nov 2020 |
| Utility: BENT ROTOR STRAIGHTENING METHOD USING LOW FREQUENCY INDUCTION HEATING AND BENT ROTOR STRAIGHTENING APPARATUS USING SAME Filling date: 7 Sep 2025 Issue date: 29 Oct 2020 | 20 Mar 2019 | 29 Oct 2020 |
| Utility: DEVICE AND METHOD FOR DETECTING FAILURE LOCATION OF UNDERGROUND CABLE Filling date: 7 Sep 2025 Issue date: 6 Aug 2020 | 24 Aug 2018 | 6 Aug 2020 |
| Utility: OVER-VOLTAGE PREVENTION APPARATUS AND METHOD OF DISTRIBUTION LINE CONNECTED WITH DISTRIBUTED GENERATOR Filling date: 7 Sep 2025 Issue date: 30 Jul 2020 | 30 Jan 2020 | 30 Jul 2020 |
| Utility: COMBINED POWER GENERATION APPARATUS Filling date: 7 Sep 2025 Issue date: 25 Jun 2020 | 22 Jan 2018 | 25 Jun 2020 |
| Utility: DAMPER FOR REINFORCING EARTHQUAKE RESISTANCE Filling date: 7 Sep 2025 Issue date: 11 Jun 2020 | 22 Aug 2018 | 11 Jun 2020 |
| Utility: SYSTEM FOR EVALUATING PERFORMANCE OF CARBON DIOXIDE SEPARATION MEMBRANE MODULE AND DEVICE THEREFOR Filling date: 7 Sep 2025 Issue date: 11 Jun 2020 | 5 Jan 2018 | 11 Jun 2020 |
| Utility: APPARATUS FOR CONTROLLING ESS ACCORDING TO TRANSIENT STABILITY STATE AND METHOD THEREOF Filling date: 7 Sep 2025 Issue date: 11 Jun 2020 | 2 Aug 2017 | 11 Jun 2020 |
| Utility: ELECTRIC CAR CHARGING APPARATUS INSTALLED ON UTILITY POLE AND BASED ON LOAD OF TRANSFORMER CONNECTED TO DISTRIBUTION LINE, ELECTRIC CAR CHARGING SYSTEM, AND METHOD FOR CONTROLLING ELECTRIC CAR CHARGING APPARATUS INSTALLED ON UTILITY POLE Filling date: 7 Sep 2025 Issue date: 9 Apr 2020 | 12 Jun 2017 | 9 Apr 2020 |
| Utility: CARBON DIOXIDE SEPARATOR Filling date: 7 Sep 2025 Issue date: 6 Feb 2020 | 30 Nov 2016 | 6 Feb 2020 |
| Utility: TRANSFORMER HYDROGEN GAS MONITORING SYSTEM, DEVICE, AND METHOD Filling date: 7 Sep 2025 Issue date: 30 Jan 2020 | 18 Aug 2017 | 30 Jan 2020 |
| Utility: PROTECTIVE RELAY TEST EQUIPMENT OPERATION DEVICE AND METHOD Filling date: 7 Sep 2025 Issue date: 16 Jan 2020 | 18 Aug 2017 | 16 Jan 2020 |
| Utility: POWER TRANSFORMER ASSET MANAGEMENT DEVICE AND METHOD THEREFOR Filling date: 7 Sep 2025 Issue date: 26 Dec 2019 | 4 Aug 2017 | 26 Dec 2019 |
| Utility: DATA CONCENTRATION UNIT, POWER METER, AND METHOD FOR OPERATING SAME Filling date: 7 Sep 2025 Issue date: 14 Nov 2019 | 14 Nov 2016 | 14 Nov 2019 |
| Utility: SOLID RAW MATERIAL FOR CARBON DIOXIDE ABSORBENT, CARBON DIOXIDE ABSORBENT COMPOSITION COMPRISING SAME, AND CARBON DIOXIDE ABSORBENT PREPARED USING SAME Filling date: 7 Sep 2025 Issue date: 10 Oct 2019 | 18 Nov 2016 | 10 Oct 2019 |
| Utility: REFLECTED-WAVE PROCESSING APPARATUS Filling date: 7 Sep 2025 Issue date: 26 Sep 2019 | 22 Nov 2016 | 26 Sep 2019 |
| Utility: APPARATUS FOR CONTROLLING OUTPUT VOLTAGE FOR SINGLE-TYPE CONVERTER, AND METHOD THEREFOR Filling date: 7 Sep 2025 Issue date: 5 Sep 2019 | 11 Nov 2016 | 5 Sep 2019 |
| Utility: MID-TEMPERATURE RANGE DRY REGENERABLE SOLID CARBON DIOXIDE SORBENT, SLURRY COMPOSITION AND METHOD FOR MANUFACTURING THE SAME Filling date: 7 Sep 2025 Issue date: 29 Aug 2019 | 14 May 2019 | 29 Aug 2019 |
| Utility: CONTROL METHOD AND CONTROL SYSTEM FOR ENERGY STORAGE SYSTEM HAVING DEMAND CONTROL AND UNINTERRUPTED POWER SUPPLY FUNCTIONS Filling date: 7 Sep 2025 Issue date: 29 Aug 2019 | 14 Nov 2016 | 29 Aug 2019 |
| Utility: SUPERCONDUCTIVE CABLE COOLING SYSTEM HAVING INTEGRATION OF LIQUID NITROGEN CIRCULATION AND REFRIGERATOR Filling date: 7 Sep 2025 Issue date: 15 Aug 2019 | 8 Nov 2016 | 15 Aug 2019 |
