Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 10323438 | Two-point lock | Wei-Hung Chang | 2019-06-18 |
| 9145720 | Magnetic locking apparatus | Wei-Hung Chang | 2015-09-29 |
| 8875549 | Lock assembly | Wei-Hung Chang | 2014-11-04 |
| 7673373 | Frameless glass door clamp | Wei-Hung Chang | 2010-03-09 |
| 7637059 | Roller assembly for a frameless sliding glass door | James Chang | 2009-12-29 |
| 6591987 | Wafer retainer | Tzong-Ming Wu, Tien-Lu Ho | 2003-07-15 |