16. Yun-Kyu An and Keun Young Jang, “Stand-alone Hybrid Image Scanning System for Crack Evaluation of Semiconductors during the Manufacturing Process”, Korean Patent (Pending)

15. Yun-Kyu An and Keun Young Jang, “Hybrid Image Scanning System Embedded onto UAVs for Noncontact Crack Evaluation”, Korean Patent (Pending)

14. Jong Jae Lee and Yun-Kyu An, “Nozzle to Control Orientation of Steel Fiber used in steel Fiber Reinforced Concrete”, Korean Patent (10-2017-0056081, Pending)

13. Yun-Kyu An and Man Sung Kang, “Self-sensing Concrete-based Impedance Apparatus and Technique for Real-time Structural Health Monitoring”, Korean Patent (Pending)

12. Yun-Kyu An and Soonkyu Hwang, “Continuous-wave Line Laser Thermography for Rotating Wind Turbine Blade Monitoring”, Korean Patent (Pending)

11. Yun-Kyu An and Man Sung Kang, “3D GPR Signal Processing Method for Sinkhole Evaluation of Roads”, Korean Patent (10-2017-0018772, Pending)

10. Yun-Kyu An “Real-time Data Acquisition Program for a Unit Radar Chip”, Korean Program Copyright (C-2016-008899)

9. Yun-Kyu An and Dong Jun Lee, “Self-sensing Nonlinear Ultrasonic Method for Fatigue Crack Detection”, Korean Patent (10-1716877)

8. Yun-Kyu An and Soonkyu Hwang, “Continuous Line Laser Beam Scanning Thermography Apparatus and Technique for Nondestructive Evaluation”, Korean Patent (10-2016-0057143, Pending)

7. Yun-Kyu An, “Guided Wave 3D Imaging Apparatus and Technique using MEMS Micro-phone Array”, Korean Patent (10-1693710)

6. Yeon Jo Moon, Hoon Sohn, Sang Young Kim, Yun-Kyu An, Sung Il Jo, Seoung-weon Ha, Jin Yeol Yang, and Soon-Kyu Hwang, “Surface Inspection Apparatus for Semiconductor Chips”, US Patent (9500599)

5. Hoon Sohn, Yun-Kyu An, Jin Yeol Yang and Yeon Jo Moon, "Laser Lock-in Thermography Device and Technique for Real-time Semiconductor Crack Diagnosis”, Korean Patent (10-2014-0008579, Pending).

4. Hoon Sohn, Yun-Kyu An and Ji Min Kim, “Laser Lock-in Thermography Device for Nondestructive Evaluation”, Korean Patent (10-1320358), Oct. 15, 2013.

3. Hoon Sohn and Yun-Kyu An, “Integrated Impedance and Guided Wave based Damage Detection Method and Integrated Impedance and Guided Wave Measurement Apparatus”, Korean Patent (10-1225703), Jan 17, 2013.

2. Hoon Sohn and Yun-Kyu An, “Damage Detection Method using Dual-Sensors”, Korean Patent (10-1129726), Mar. 16, 2012.

1. Hoon Sohn and Yun-Kyu An, “Guided Wave-based Damage Detection Method using Collocated PZTs”, Korean Patent (10-1094906), December 9, 2011.