WC

Wally Liyuan Chang

WI Witco: 3 patents #24 of 201Top 15%
CW Ck Witco: 1 patents #8 of 55Top 15%
CR Crompton: 1 patents #83 of 231Top 40%
📍 White Plains, NY: #271 of 917 inventorsTop 30%
🗺 New York: #23,203 of 115,490 inventorsTop 25%
Overall (All Time): #838,779 of 4,157,543Top 25%
6
Patents All Time

Issued Patents All Time

Showing 1–6 of 6 patents

Patent #TitleCo-InventorsDate
9944745 Flame retardant and auto-catalytic polyesters for polyurethanes 2018-04-17
6774154 Semiflexible and flexible polyurethanes foams having low fogging characteristics and improved physical properties 2004-08-10
6420446 Polyurethane prepared from sorbitol-branched polyesters 2002-07-16
6166165 Polyurethane synthesis from functional group terminated polymers containing sulfonate groups 2000-12-26
5753774 Functional group terminated polymers containing sulfonate group via sulfonation of ethylenically unsaturated polymers 1998-05-19
5698626 Functional group terminated polymers containing sulfonate group via polymerization of sulfonated monomers 1997-12-16