Inventor

PERRY CHARLES W

US3 patents

Patents

3 patents

US6786965B2Sep 7, 2004

Organic pigment dispersion for coloring building materials

SUN CHEMICAL CORP29 citations90

US7282263B2Oct 16, 2007

Method for coloring cellulosic materials using cationic pigment dispersion

SUN CHEMICAL CORP7 citations66

US7999017B2Aug 16, 2011

Method for coloring building materials using a cationic pigment dispersion

SUN CHEMICAL CORP1 citations44