Issued Patents All Time
Showing 1–25 of 47 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D656386 | Cover for a passageway door lock | — | 2012-03-27 |
| 8136375 | Door lock for use with differing interchangeable lock cores | — | 2012-03-20 |
| 7793527 | Reinforced handle assembly for lock | — | 2010-09-14 |
| 7377140 | Lock with clutching function | Chung-Liang Lin | 2008-05-27 |
| 7281401 | Protective sleeve for latch mechanism for lock | — | 2007-10-16 |
| 7281738 | Interchangeable handle assembly for lock | Hung-Jen Tien | 2007-10-16 |
| 7219519 | Cylinder housing for auxiliary lock | — | 2007-05-22 |
| 7178373 | Mortise lock | Roger Tiem | 2007-02-20 |
| 7178372 | Combination of locking button and spindle for lock | — | 2007-02-20 |
| 7082794 | Mortise lock | Roger Tiem | 2006-08-01 |
| 6993946 | Lock with clutching function | — | 2006-02-07 |
| 6979029 | Lock with increased torque-resisting capacity | — | 2005-12-27 |
| 6893059 | Cylindrical lock with improved resistance to torque | — | 2005-05-17 |
| 6886871 | Fireproof cover for a tubular lock | — | 2005-05-03 |
| 6874341 | Combination of an outside spindle and a core retainer for a lock | — | 2005-04-05 |
| 6869115 | Inside rose liner for a door lock | — | 2005-03-22 |
| 6802194 | Clutch mechanism for a lock | — | 2004-10-12 |
| 6742820 | Easy-to-operate cylindrical lock | — | 2004-06-01 |
| 6719338 | Dummy trim with an improved resistance to pull | — | 2004-04-13 |
| 6705138 | Clutch mechanism for a lock | — | 2004-03-16 |
| 6532779 | Lockset assembly allowing interchange between an interchangeable core type handle and a cylinder type handle | — | 2003-03-18 |
| 6425613 | Door lockset | — | 2002-07-30 |
| 6412318 | Electric cylindrical lock unlockable by a key | — | 2002-07-02 |
| 6364383 | Easy-to-install door lock with burglar-proof effect for outside rose assembly | — | 2002-04-02 |
| 6360570 | Lockset knob assembly for use with an interchangeable lock core | — | 2002-03-26 |