Lexmark Charges 24 Firms Infringing Its Ink Cartridge Patents Monday, August 23, 2010 (16:25:20) Posted by RSS Reader Lexmark International Inc. (LXK) filed complaints with the U.S. International Trade Commission and a U.S. federal court accusing two dozen companies of infringing its patents through the manufacturing, importation and sale of replacement laser cartridges. Content received from: ImagerZone, http://www.ImagerZone.com