Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12157106 | Natural zeolite block for improving water quality and method for manufacturing same | — | 2024-12-03 |
| 11524273 | Natural zeolite block for improving water quality and method for manufacturing same | — | 2022-12-13 |
| 10006780 | Service method and system for providing service using user activity | Gwang-Yeon Hwang, Dae-woo CHO, Chung Hyun Yu, Kwang-Min Kim, Hye Ran Lee +1 more | 2018-06-26 |
| 9861301 | Service method and system for providing service using moving path of user | Gwang-Yeon Hwang, Dae-woo CHO, Chung Hyun Yu, Hye Ran Lee, Kwang-Min Kim | 2018-01-09 |
| 9363641 | Service method and system for providing reward using moving path of user | Chung Hyun Yu, Dae-woo CHO | 2016-06-07 |