Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9718440 | Electronic key device capable of wirelessly controlling lock system and transmitting control authentication of lock system, system therefor, and method therefor | Kun Hwi Choi, Cheung Hui Choi | 2017-08-01 |