Issued Patents 2023
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11676463 | Doorbell system and security method thereof | Tak Won Cho, Seok Yong Yoon, Hee Kyung Kim | 2023-06-13 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11676463 | Doorbell system and security method thereof | Tak Won Cho, Seok Yong Yoon, Hee Kyung Kim | 2023-06-13 |