Inventor
Lian Shaojie
CN2 patents
Patents
2 patentsUS11919976B1Mar 5, 2024
Preparation and purification method for cationic quaternary ammonium salt of sodium hyaluronate in homogeneous medium
SHANDONG FOCUSFREDA BIOTECH CO LTD0 citations47
US12435162B2Oct 7, 2025
Preparation method for acetylated sodium hyaluronate
SHANDONG FOCUSFREDA BIOTECH CO LTD0 citations37