Patents/Inventors

Yunhang Zeng

ChengduCN1 patent

2 Patents

US121295242024
Chrome-free Tanning Process of Ecological Leather
SICHUAN UNIVERSITY
0 cites
US118347242023
Light-colored Polycarboxylated Polysaccharide Tanning Agent, and Preparation Method and Use Thereof
SICHUAN UNIVERSITY
0 cites