Inventor

PETERSON JR DOUGLAS K

US2 patents

Patents

2 patents

US7280772B2Oct 9, 2007

Method for detecting whether a cartridge installed in an imaging apparatus is potentially counterfeit

LEXMARK INT INC38 citations90

US7369782B2May 6, 2008

Method and system for providing technical support relating to an imaging cartridge

LEXMARK INT INC17 citations78