Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9972147 | Smart badge and authentication system using the same | Seok Woo Lee, Duk Soo Kim, Sang Gyoo SIM, Yeon Tae Kim | 2018-05-15 |
| 9762384 | Generation and verification of alternate data having specific format | SangGyoo Sim, Duk Soo Kim, Taejoon Jung, Seok Woo Lee | 2017-09-12 |