Issued Patents 2021
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D939628 | Electronic whiteboard | Yongho Lee, Jiyeon Lee, Hyeyoung Hong | 2021-12-28 |
| D938519 | Electronic blackboard | Hyeyoung Hong, Yongho Lee, Jiyeon Lee | 2021-12-14 |
| D918299 | Digital sign | Sangwon Yoon, Hongseok Kim, Yongho Lee | 2021-05-04 |
| D915360 | Voice recognition device for television | Yongho Lee | 2021-04-06 |
| D915405 | Stylus for touch screens | Yongho Lee, Hyeyoung Hong | 2021-04-06 |
| D909474 | Electronic whiteboard | Yongho Lee, Hyeyoung Hong | 2021-02-02 |