Issued Patents 2011
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8032989 | Casement window hinge | Tong Liang, David Chen | 2011-10-11 |
| 7941898 | Window rotating handle | Tong Liang | 2011-05-17 |
| 7905521 | Multi-point sliding door latch | Tong Liang, David Chen | 2011-03-15 |
| D634175 | Handle | David Chen, Tong Liang | 2011-03-15 |
| 7900400 | Adjustable window hinge | Tong Liang, David Chen | 2011-03-08 |