Patents/Inventors

Hongchang Liu

ChangshaCN1 patent

2 Patents

US122972282025
Method for Extracting Useful Substances from Shrimp Shells
HUNAN BEIBEISHENG BIOTECHNOLOGY INDUSTRIAL CO., Ltd.
0 cites
US119987792024
Main Valve for Drawing Straightway Deluge Valve
Shandong Meihua Fire Technology Co., Ltd.
0 cites