Issued Patents All Time
Showing 51–75 of 75 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D634175 | Handle | David Chen, Tong Liang | 2011-03-15 |
| 7900400 | Adjustable window hinge | Tong Liang, David Chen | 2011-03-08 |
| D626815 | Handle | Tong Liang, David Chen | 2010-11-09 |
| 7775563 | Mortise lock for a sliding door | Toni Liang, David Chen | 2010-08-17 |
| 7699365 | Sash lock with condition signal | Toni Liang, David Chen | 2010-04-20 |
| 7637544 | Night latch | Tong Liang, David Chen | 2009-12-29 |
| 7600796 | Night latch | Tong Liang, Chen Chen | 2009-10-13 |
| 7559588 | Window vent stop | — | 2009-07-14 |
| D593841 | Tilt latch | Toni Liang, David Chen | 2009-06-09 |
| 7530611 | Night latch for sliding member | Toni Liang, David Chen | 2009-05-12 |
| 7431356 | Window vent stop | Tong Liang | 2008-10-07 |
| D571635 | Sash lock and keeper | Tong Liang, David Chen | 2008-06-24 |
| D569225 | Keeper | Tong Liang, David Chen | 2008-05-20 |
| D567067 | Keeper | — | 2008-04-22 |
| D562109 | Sash lock | — | 2008-02-19 |
| 7296831 | Window lock keeper | Paul Generowicz | 2007-11-20 |
| D551534 | Handle | Toni Liang, David Chen | 2007-09-25 |
| 7257864 | Casement window hinge | Tong Liang | 2007-08-21 |
| 7251860 | Window rotating handle | Toni Liang | 2007-08-07 |
| D546166 | Sash lock | — | 2007-07-10 |
| 7197849 | Balance shoe for tilt windows | Tong Liang | 2007-04-03 |
| D536950 | Sash lock | Toni Leung | 2007-02-20 |
| 7165359 | Balance shoe | Tong Liang | 2007-01-23 |
| 7159908 | Window sash latch | — | 2007-01-09 |
| 6901702 | Balance shoe | Tong Liang | 2005-06-07 |