Inventor
XU HAIHUA
SG3 patents
⚠️ This page may combine multiple inventors who share the name “XU HAIHUA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ZHEJIANG ROOMEYE ENERGY SAVING TECH CO LTD
2 patentsUS10641034B2May 5, 2020
Assembly frame structure of wooden casement window and corner assembly method
ZHEJIANG ROOMEYE ENERGY SAVING TECH CO LTD2 citations59
US11268318B2Mar 8, 2022
Frame forming structure for use with frame and sash of aluminium-wood combined door/window
ZHEJIANG ROOMEYE ENERGY SAVING TECH CO LTD4 citations58