- Mintae Hwang, Recyclables Collection System and Method and Computing Device for Performing the Same, and E-Commerce System using Recyclables Collection, Korea Domestic Patents, Submission No. 10-2023-0041230(March 2023), Approval No. 10-2855562(September 2025)
- Mintae Hwang, Apparatus and Method for Monitoring Violations of Traffic Laws by Two-Wheeled Vehicle, Korea Domestic Patents 10-2023-0067957, May 2023 (Ongoing)
- Mintae Hwang, Method of Service for Tour Guide and Computing Device for Executing the Method, Korea Domestic Patents 10-2022-0005972, Jan. 2022 (Ongoing)
- Mintae Hwang, Kyohong Jin and Sisik Jeong, Electronic Board Apparatus having Flexible Menu Display Function, Korea Domestic Patents 10-1599217, 2016.
- Youngae Jeon, Kyohong Jin, Jinuk Jung and Mintae Hwang, Method and Apparatus for Multi-hop QoS Routing, US Patents 13/655,669, 2012.
- Youngae Jeon, Kyohong Jin, Jinuk Jung and Mintae Hwang, Method and Apparatus for Multi-hop QoS Routing, Korea Domestic Patents 10-2012-0101824, 2012.
- Mintae Hwang, et. al, Multimedia Medium Access Control Method for High-speed Powerline Communication, Korea Domestic Patents 10-0645868, 2006.
- Mintae Hwang and Jangkyung Kim, In-Home Networking Apparatus and Method with Auto-Registration, Korea Domestic Patents 98-39713, 1998.
- Mintae Hwang and Jangkyung Kim, In-Home Networking Apparatus and Control Method, Korea Domestic Patents 97-65328, 1997.
- Mintae Hwang and Jangkyung Kim, Internetworking Apparatus and Method using IEEE 1355 Packet Routing Server, Korea Domestic Patents 96-58211, 1996.
- Mintae Hwang, Interoperability Testing Program for ALAX System, S/W Registration Number 98-01-21-2830, 1998.
- Mintae Hwang, Operation Testing Program for ALAX System, S/W Registration Number 212893, 1997.
- Mintae Hwang, Board Initialization Program of EIU(Ethernet Interface Unit), SIU(Switch Interface Unit) and AIU(ATM Interface Unit) of ALAX System, S/W Registration Number 212894, 1997.
- Mintae Hwang, Device Driver Program for ALAX Host Computer, S/W Registration Number 218820, 1996.