Liu; Cheng-Chung
Patent Applications and Registrations
Patent applications and USPTO patent grants for Liu; Cheng-Chung.The latest application filed is for "mortise lock".
- Liu; Cheng-Chung - Chiayi County TW
- Liu; Cheng-Chung - Chia-Yi County TW
- LIU; Cheng-Chung - City of Industry CA
- Liu; Cheng-Chung - Warren NJ
| Patent | Date |
|---|---|
| Mortise lock Grant 8,881,562 - Huang , et al. November 11, 2 | 2014-11-11 |
| Mortise Lock App 20130000364 - HUANG; Tsung-Chung ; et al. | 2013-01-03 |
| Re-keyable cylinder lock Grant 8,316,676 - Chiang , et al. November 27, 2 | 2012-11-27 |
| Cylinder lock having a reinforcement structure coupled to an outer rose disc Grant 8,182,006 - Liu , et al. May 22, 2 | 2012-05-22 |
| Cylinder lock with reinforcements to improve structural strength Grant 8,182,005 - Liu , et al. May 22, 2 | 2012-05-22 |
| Lock with a support structure Grant 8,087,273 - Liu , et al. January 3, 2 | 2012-01-03 |
| Cylinder lock having improved torsional strength Grant 7,748,758 - Fang , et al. July 6, 2 | 2010-07-06 |
| Lock With A Support Structure App 20100064745 - LIU; Cheng-Chung ; et al. | 2010-03-18 |
| Re-keyable Cylinder Lock App 20100050717 - CHIANG; Wei-Liang ; et al. | 2010-03-04 |
| Cylinder Lock Having A Reinforcement Structure Coupled To An Outer Rose Disc App 20090288459 - LIU; Cheng-Chung ; et al. | 2009-11-26 |
| Cylinder Lock With Reinforcements To Improve Structural Strength App 20080168809 - LIU; Cheng-Chung ; et al. | 2008-07-17 |
| Deadbolt Lock Device With A Reinforced Housing App 20080121002 - SUN; Chia-Min ; et al. | 2008-05-29 |
| Slat Base for Window Blinds App 20070284064 - LIU; Cheng-Chung | 2007-12-13 |
| Cylinder lock having improved torsional strength App 20070182169 - Fang; Jeff ; et al. | 2007-08-09 |
| Method for forwarding a call to a temporarily utilized portable telephone Grant 5,537,467 - Cheng , et al. July 16, 1 | 1996-07-16 |
| Methods and apparatus for software retrofitting Grant 5,155,837 - Liu , et al. October 13, 1 | 1992-10-13 |
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