Inventor

DUAN WEIDONG

AU2 patents

⚠️ This page may combine multiple inventors who share the name “DUAN WEIDONG”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.

DUAN WEIDONG

1 patent

US8697169B2Apr 15, 2014

Methods and compositions for fining beverages

DUAN WEIDONG3 citations46

HEBEI CAIKE CHEMICAL CO LTD

1 patent

US11512006B2Nov 29, 2022

Method for simultaneously preparing iron oxide red pigment and aromatic amine

HEBEI CAIKE CHEMICAL CO LTD0 citations37