Issued Patents All Time
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 11268318 | Frame forming structure for use with frame and sash of aluminium-wood combined door/window | Haihua Xu, Chengjie He | 2022-03-08 |
| 10641034 | Assembly frame structure of wooden casement window and corner assembly method | Lijiao Yin, Weixing Wu, Yibin Jiang, Zhixiang XU, Haihua Xu +2 more | 2020-05-05 |