Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8505345 | Door lock assembly having a press button in an inner handle | Chia-Min Sun, Song-Gen Shyu | 2013-08-13 |
| D513469 | Escutcheon | Wei-Lung Chiang | 2006-01-10 |
| 6928844 | Latching device for a lock | Wei-Lung Chiang | 2005-08-16 |
| D508393 | Escutcheon | Wei-Lung Chiang | 2005-08-16 |
| 6109080 | Transmission devices for locks with changeable lock core assemblies | Po-Yang Chen, Ming-Shyang Chiou, Kun-Feng Tsai | 2000-08-29 |
| 5722273 | Latch bolt operating device | San-Yi Lin, Ching-Chuan Kuo, Tong-Pei Wu, Lan-Kun Don | 1998-03-03 |
| 5666833 | Reinforcing apparatus for a lever handle of a door lock | Rong-Faa Wu, Ming-Shyang Chiao, Cheng-Wen Lai, San-Yi Lin, Ching-Chuan Kuo +1 more | 1997-09-16 |
| 5624141 | Lock assembly for retracting a door latch | Ching-Chuan Kuo, Ming-Shyang Chiou, Tong-Pei Wu | 1997-04-29 |