Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D513469 | Escutcheon | Sheen-Youl Gao | 2006-01-10 |
| 6928844 | Latching device for a lock | Sheen-Youl Gao | 2005-08-16 |
| D508393 | Escutcheon | Sheen-Youl Gao | 2005-08-16 |
| 6622535 | Lock construction having an electrically activated clutch mechanism and a transmission mechanism | Tsung-Chung Hung, Po-Yang Chen, Chen-Ming Lin | 2003-09-23 |