Inventor

YUAN ZHENGPING

CN2 patents

Patents

2 patents

US12366014B2Jul 22, 2025

Method for preparing black fibers

Jiangsu hengli chemical fibre co ltd0 citations46

US12559870B2Feb 24, 2026

Method for preparing full-dull cotton-like polyester fibers

Jiangsu hengli chemical fibre co ltd0 citations42