Issued Patents 2022
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11489887 | System for providing contact center services in integrated way | Jae In Lee, Hyun Sun Cho, Kyung Taek Park | 2022-11-01 |
| 11214747 | Multi-functional foam concentrate-type agent for inhibiting spontaneous ignition of soft coal | Qhwanghee Rhee, Jaehyeon Koo, Hongchul Jun, Seonggi O | 2022-01-04 |