EU Regulator Warns Nokia Not to Become 'Patent Troll'

Europe's top regulator has warned Nokia not to try to become a "patent troll" after the Finnish company sold most of its cellphone-making business to Microsoft Corp. this year but retained its patent portfolio. Joaquin Almunia said in a speech in Paris he had approved the $7.2 billion sale as not presenting problems on Microsoft's side, but there is a danger Nokia will now attempt to "extract higher returns" from its patent portfolio.