Issued Patents All Time
Showing 51–74 of 74 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7581421 | Door lock assembly having a support structure to support a tailpiece and a retaining plate | Lan-Kun Don, Po-Yang Chen | 2009-09-01 |
| 7372213 | Lamp current balancing topologies | Houng-Kuo Hsu | 2008-05-13 |
| 7137657 | Reinforced apparatus for a lever handle of a door lock | Rong-Faa Wu, Po-Yang Chen | 2006-11-21 |
| 7073829 | Restoring structure of a lock | Lan-Kun Don, Tsung-Chung Huang | 2006-07-11 |
| 6557320 | Compact disk packing machine | Chen-Hsien Chang, Chia-Wen Liu, Mao Lung Chien | 2003-05-06 |
| 6515881 | Inverter operably controlled to reduce electromagnetic interference | John Chou | 2003-02-04 |
| 6230528 | Adjustable device for an auxiliary lock | Lan-Kun Don | 2001-05-15 |
| 5927777 | Lock set with improved spindle construction | Ming-Shyang Chiou, Cheng-Wen Lai, Rong-Faa Wu, Po-Yang Chen | 1999-07-27 |
| 5788296 | Lock set with improved spindle construction | Ming-Shyang Chiou, Cheng-Wen Lai, Rong-Faa Wu, Po-Yang Chen | 1998-08-04 |
| 5722273 | Latch bolt operating device | San-Yi Lin, Tong-Pei Wu, Lan-Kun Don, Sheen-Youl Gao | 1998-03-03 |
| 5666833 | Reinforcing apparatus for a lever handle of a door lock | Sheen-Youl Gao, Rong-Faa Wu, Ming-Shyang Chiao, Cheng-Wen Lai, San-Yi Lin +1 more | 1997-09-16 |
| 5655393 | Door lock set with simultaneously retractable deadbolt and latch | Lan-Kun Don | 1997-08-12 |
| 5624141 | Lock assembly for retracting a door latch | Ming-Shyang Chiou, Tong-Pei Wu, Sheen-Youl Gao | 1997-04-29 |
| 5562317 | Inner handle assembly of cylinder lock | Ming-Shyang Chiou, Cheng-Wen Lai | 1996-10-08 |
| 5551264 | Door lock having a deadbolt assembly with a low-cost corrosion-resistant bolt member | Yaw-Shin Fann, San-Yi Lin, Lan-Kun Don, Ming-Shyang Chiou | 1996-09-03 |
| 5551736 | Dual backset deadbolt assembly for a cylinder lock | Yaw-Shin Fann, Ming-Shyang Chiou | 1996-09-03 |
| 5505508 | Door lock assembly | — | 1996-04-09 |
| 5474346 | Face plate adapted to be inserted into a bore of a door | Yaw-Shin Fann, San-Yi Lin, Rong-Faa Wu, Lan-Kun Don | 1995-12-12 |
| 5385374 | Reinforced cylindrical door lock set | Yaw-Shin Fann, San-Yi Lin, Rong-Faa Wu, Lan-Kun Don | 1995-01-31 |
| 5301526 | Lock set with improved spindle mechanism | Yaw-Shin Fann, San-Yi Lin, Ming-Shyang Chiou, Rong-Faa Wu | 1994-04-12 |
| 5222383 | Cylinder lock | Yaw-Shin Fann, Rong-Faa Wu | 1993-06-29 |
| 5074605 | Duplex latch-bolt mechanism | Yaw-Shin Fann, San-Yi Lin, Ming-Shyang Chiou | 1991-12-24 |
| 5067758 | Lock handle assembly with limited angular movement | Yaw-Shin Fann, Ming-Shyang Chiou | 1991-11-26 |
| 4831687 | Door closer with a concealed mounting | San-I Lin | 1989-05-23 |