NEW YORK (CNNfn) - Computer maker Hewlett Packard Co. sued copier colossus Xerox Corp. Thursday for patent infringement.
The suit, filed in U.S. District Court in San Francisco, accuses Xerox of selling copier products that use technology patented by Hewlett Packard.
HP is seeking an injunction prohibiting Xerox from manufacturing and selling certain color and black-and-white copiers containing user-interface technology pioneered by HP. The suit also seeks unspecified damages.
The company says Xerox has sold more than $800 million in products violating its patents, including Xerox's newest digital copiers, the Document Center 220 and 230.
"HP has invested many billions of dollars in technology [research and development]. We have a deep and rich patent portfolio, which serves us well in a situation like this," said Lewis Platt, HP's chairman, chief executive officer and president.
Thursday's lawsuit is the latest in the battle between the two companies. Xerox filed a patent infringement suit against HP May 14 claiming certain cartridges used in HP printers violated its patents. Xerox is seeking an unspecified amount of damages.