On June 28, a Delaware-based company called UbiComm filed patent-infringement lawsuits against Lexmark, Pharos Systems, Print Audit, and Sharp in the U.S. District Court for the District of Delaware, accusing the firms of selling infringing document-management solutions.Lexmark Suit DetailsThe patents that UbiComm claims Lexmark infringes are U.S. patent 5,555,376 (the ‘376 patent), 5,603,054 (the ‘054
