Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D1084825 | Electronic lock | Yu Lin, Jui-Chieh Cheng | 2025-07-22 |
| D1084819 | Electronic lock | Jui-Chieh Cheng, Yu Lin | 2025-07-22 |
| 8960740 | Lock shell assembly | Tsung-Chung Huang, Chia-Min Sun, Yu-Ting Huang | 2015-02-24 |
| 8881562 | Mortise lock | Tsung-Chung Huang, Cheng-Chung Liu, Wei-Liang Chiang, Song-Gen Shyu, Ching-Chuan Kuo | 2014-11-11 |
| 8316676 | Re-keyable cylinder lock | Wei-Liang Chiang, Cheng-Chung Liu, Kun-Chen Lee, Song-Gen Shyu, Ching-Chuan Kuo | 2012-11-27 |
| 8256253 | Cylindrical lock | Po-Yang Chen, Tsung-Chung Huang, Yu-Ting Huang, Chia-Min Sun | 2012-09-04 |
| 7975518 | Re-keyable lock with improvements for preventing incomplete re-keying | Wei-Liang Chiang, Rong-Faa Wu, Ching-Chuan Kuo | 2011-07-12 |
| 7874191 | Cylinder lock | Wei-Liang Chiang, Po-Yang Chen, Kun-Chen Lee, Rong-Faa Wu, Ching-Chuan Kuo | 2011-01-25 |
| D506665 | Doorknob | Chia-Min Sun | 2005-06-28 |