Inventor

GEFFRE RAYMOND

US3 patents

Patents

3 patents

US5488400AJan 30, 1996

Method for refilling ink jet cartridges

GRAPHIC UTILITIES INC42 citations90

US5364462ANov 15, 1994

Waterfast inks

GRAPHIC UTILITIES INC46 citations84

US5686948ANov 11, 1997

Method for refilling ink jet cartridges

GRAPHIC UTILITIES INC16 citations71