Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 12424072 | Management system apparatus for performing risk situation determination in indoor space using multiple sensors and the operating method thereof | Changsoo YU | 2025-09-23 |
| 12238068 | Service server capable of performing internet access management services according to grades and the operating method thereof | — | 2025-02-25 |
| 12095884 | Electronic terminal device that performs schedule control for limiting the use of the Internet and applications, and the operating method thereof | Changsoo YU | 2024-09-17 |
| 11681779 | Notification service server capable of providing access notification service to harmful sites and operating method thereof | Changsoo YU | 2023-06-20 |
| 11658981 | Internet access management service server capable of providing internet access management service based on terminal grouping and operating method thereof | Changsoo YU | 2023-05-23 |
| 9078283 | Mobile convergence terminal | — | 2015-07-07 |
| D358687 | Finger and palm guard | — | 1995-05-23 |
| 5363508 | Finger and palm guard | — | 1994-11-15 |