Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5927777 | Lock set with improved spindle construction | Ching-Chuan Kuo, Ming-Shyang Chiou, Rong-Faa Wu, Po-Yang Chen | 1999-07-27 |
| 5788296 | Lock set with improved spindle construction | Ching-Chuan Kuo, Ming-Shyang Chiou, Rong-Faa Wu, Po-Yang Chen | 1998-08-04 |
| 5666833 | Reinforcing apparatus for a lever handle of a door lock | Sheen-Youl Gao, Rong-Faa Wu, Ming-Shyang Chiao, San-Yi Lin, Ching-Chuan Kuo +1 more | 1997-09-16 |
| 5562317 | Inner handle assembly of cylinder lock | Ching-Chuan Kuo, Ming-Shyang Chiou | 1996-10-08 |