Court Revives Part of Paul Allen's Patent Suit

A U.S. appeals court on  revived part of a patent lawsuit brought by Microsoft co-founder Paul Allen against AOL, Apple, Google and Yahoo, saying a lower court incorrectly found that the tech companies didn't infringe one of its patents. The patent, held by Allen's Interval Licensing, relates to the ubiquitous pop-ups that computer users routinely see while surfing the Web or shopping online.