Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9996995 | Door-lock control method | Susan Dong | 2018-06-12 |
| 9948905 | Remote access control system for controlling door lock to unlock remotely | Hee-Lup Chong, Susan Dong | 2018-04-17 |
| 9648289 | Doorbell-triggering method | — | 2017-05-09 |