Issued Patents All Time
Showing 26–42 of 42 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8220846 | Latch for tiltable sash windows | Luke Liang, David Chen | 2012-07-17 |
| 8132290 | Block and tackle balance assembly with rotatable shoe | Luke Liang, David Chen | 2012-03-13 |
| 8032989 | Casement window hinge | Luke Liang, David Chen | 2011-10-11 |
| 7941898 | Window rotating handle | Luke Liang | 2011-05-17 |
| 7905521 | Multi-point sliding door latch | Luke Liang, David Chen | 2011-03-15 |
| D634175 | Handle | Luke Liang, David Chen | 2011-03-15 |
| 7900400 | Adjustable window hinge | Luke Liang, David Chen | 2011-03-08 |
| D626815 | Handle | Luke Liang, David Chen | 2010-11-09 |
| 7637544 | Night latch | Luke Liang, David Chen | 2009-12-29 |
| 7600796 | Night latch | Luke Liang, Chen Chen | 2009-10-13 |
| 7431356 | Window vent stop | Luke Liang | 2008-10-07 |
| D571635 | Sash lock and keeper | Luke Liang, David Chen | 2008-06-24 |
| D569225 | Keeper | Luke Liang, David Chen | 2008-05-20 |
| 7257864 | Casement window hinge | Luke Liang | 2007-08-21 |
| 7197849 | Balance shoe for tilt windows | Luke Liang | 2007-04-03 |
| 7165359 | Balance shoe | Luke Liang | 2007-01-23 |
| 6901702 | Balance shoe | Luke Liang | 2005-06-07 |