The vice president of the European Commission's Competition unit has warned Nokia not to become a 'patent troll'. Nokia is in the process of selling its devices business to Microsoft, giving rise to fears that the remaining part of Nokia will make more aggressive use of its patents portfolio. Vice president Joaquin Almunia said that the commission had dismissed the possibility that 'Nokia would be tempted to behave like a patent troll' when it cleared the way for Microsoft to acquire Nokia's devices division – but warned that 'if Nokia were to take illegal advantage of its patents in the future, we will open an antitrust case.' 'I sincerely hope we will not have to,' said Almunia."