Inventor
VILLIGER DAVID C
US6 patents
Patents
6 patentsUS5661197AAug 26, 1997
Erasable ink composition containing a polymer-encapsulated colorant derived from monomer containing dissolved colorant
BIC CORP53 citations95
US5900445AMay 4, 1999
Erasable ink composition containing a polymer dye obtained from ethylenic monomers and marking instrument containing same
BIC CORP19 citations92
US5852073ADec 22, 1998
Erasable ink composition containing a polymer-encapsulated colorant obtained by polymerizing monomer in the presence of solid colorant particles
BIC CORP46 citations92
US5852072ADec 22, 1998
Erasable ink composition containing a waterborne polyurethane urea
BIC CORP24 citations92
US5756561AMay 26, 1998
Erasable ink composition containing a graft-polymerized dye
BIC CORP20 citations92
US5637638AJun 10, 1997
Erasable ink composition containing a waterborne polyurethane-urea derived from an aromatic amine dye monomer and marking instrument containing same
BIC CORP44 citations91