Inventor
SUN GANGFENG
CN8 patents
Patents
8 patentsUS11940216B1Mar 26, 2024
High-temperature flue gas recovery apparatus for melting furnace
ZHEJIANG HAILIANG CO LTD2 citations65
US11925997B1Mar 12, 2024
Wire billet butt-welding apparatus and wire billet butt-welding method
ZHEJIANG HAILIANG CO LTD2 citations64
US11946698B1Apr 2, 2024
Metal melting furnace including a stirring device
ZHEJIANG HAILIANG CO LTD1 citations59
US11951535B1Apr 9, 2024
Casting furnace featuring submerged, mechanical control of liquid level
ZHEJIANG HAILIANG CO LTD1 citations57
US11999002B1Jun 4, 2024
Wire billet butt-welding apparatus
ZHEJIANG HAILIANG CO LTD0 citations53
US11971218B1Apr 30, 2024
Automatic charging apparatus for a furnace
ZHEJIANG HAILIANG CO LTD0 citations48
US11931797B1Mar 19, 2024
Double-acting switch valve
ZHEJIANG HAILIANG CO LTD0 citations47
US11298743B2Apr 12, 2022
Crystallizer for continuous casting
ZHEJIANG HAILIANG CO LTD0 citations43