Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7334440 | Reversible lock core structure for an interchangeable lock core of a door lock mechanism | Chiang-Lin Hsueh | 2008-02-26 |
| 7195295 | Latch driving unit for a door lock | Chao-Ming Huang | 2007-03-27 |
| 6584816 | Direction changeable handle lock structure | — | 2003-07-01 |